From 92b49b007f88f16a7964158352483ed3f5a487e0 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Thu, 28 May 2026 18:24:13 -0400
Subject: [PATCH 01/39] Add plan.md for 'ghost serve' command

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+# `ghost serve` — local web UI for running SQL against ghost databases
+
+## Goal
+
+Add a `ghost serve` command that launches a local web server on `127.0.0.1:<port>` and opens the browser to a small React UI. The UI shows a database picker plus the unmodified PopSQL query widget, so the user can run ad-hoc SQL against any of their ghost databases. No new auth layer: the local server reuses the CLI's existing `gt_…` API key for ghost-api metadata calls, and the query path connects directly to the user's PostgreSQL databases using credentials the CLI already resolves (via `common.GetPassword`).
+
+```
+ghost serve [--port <n>] [--host 127.0.0.1] [--no-open]
+```
+
+This is patterned after `memory-engine`'s `me serve` (PR #47), but query execution runs **in-process** inside the Go binary — there is no proxy to ghost-api or the savannah gateway. The CLI binary becomes a self-contained "query gateway" that speaks the widget's wire protocol.
+
+---
+
+## Architecture
+
+```
+                  ┌──────────────────────────────────────────┐
+   browser  ──▶   │  ghost serve  (single Go binary)         │
+   (Vite-built    │  • 127.0.0.1:<port>                      │
+    SPA, served   │  • embed.FS static                       │
+    from same     │  • /api/databases   → ghost-api (REST)   │  ──▶ ghost-api
+    origin)       │  • /api/bootstrap   → local config       │      (only used
+                  │  • /api/executeQuery, /api/arrowResults, │      for listing
+                  │    /api/cancelRun   → run pg queries     │      databases &
+                  │                       in-process         │      fetching
+                  │  • Apache Arrow IPC encoder              │      passwords)
+                  │  • pgx/v5 connections                    │
+                  │      │                                   │
+                  └──────┼───────────────────────────────────┘
+                         │
+                         ▼
+                  user's ghost Postgres DBs (TLS, direct)
+```
+
+No ghost-api changes are required. No new endpoints in any other repo. The widget thinks it's talking to a savannah gateway; in reality the gateway is a few hundred lines of Go in this binary.
+
+---
+
+## The widget's wire protocol (what we have to implement)
+
+This is what `@popsql/query-client`'s `TimescaleQueryClient` actually sends. Source: `popsql/packages/popsql-query-client/src/{TimescaleQueryClient.ts,client.ts}`.
+
+Auth: `credentials: 'include'` (cookies — but we have none on localhost) plus optional `Authorization: Bearer <accessToken>`. We don't need either — the listener is loopback-only.
+
+### One-shot mode (no `sessionKey` prop on `<QueryWidget>`) — **MVP scope**
+
+Two endpoints participate in a single query run. The widget fires these in sequence as it streams the response.
+
+**`POST /api/executeQuery`**
+Request body:
+```json
+{
+  "projectId": "<space id>",
+  "serviceId": "<database id>",
+  "query": "select 1",
+  "runId": "<uuid v4 from widget>",
+  "stream": true,
+  "persist": false,
+  "statements": null,
+  "timeout": null
+}
+```
+Response: `Content-Type: application/x-ndjson` (or `application/json` — the widget just reads lines), one JSON object per line, in order:
+1. `{ "columns": [{ "name": "…", "type": "…", … }], "meta": { … } }` — emitted as soon as the column metadata is known.
+2. As soon as the widget reads the `columns` line, it fires `POST /api/arrowResults` in parallel (see below). The original `executeQuery` response stays open.
+3. Terminator: exactly one of
+   - `{ "success": true, "rowCount": 42, "duration": 123, … }`
+   - `{ "success": false, "error": { "message": "…", "cancel"?: true, "timeout"?: true, "fatal"?: true } }`
+
+`fatal: true` causes the widget to mark the session as broken (only meaningful in session mode); we'll never set it. `cancel: true` is set when the run was cancelled via `/api/cancelRun`. `timeout: true` for query timeouts.
+
+**`POST /api/arrowResults`**
+Request body:
+```json
+{
+  "projectId": "<space id>",
+  "serviceId": "<database id>",
+  "runId": "<same runId from executeQuery>"
+}
+```
+Response: `Content-Type: application/vnd.apache.arrow.stream`, body is a raw Apache Arrow **IPC stream** (schema message + zero or more record-batch messages). The widget parses with `RecordBatchReader.from(response)` and renders incrementally.
+
+**`POST /api/cancelRun`** (used for "stop the running query")
+```json
+{ "projectId": "…", "serviceId": "…", "runId": "…" }
+```
+Soft-cancel: the widget mostly relies on `AbortController` to drop the executeQuery connection. This endpoint is wired but rarely called (see `TimescaleQueryClient.cancelQuery` comment). We'll implement it as best-effort `pg_cancel_backend()` against the run's connection.
+
+### Session mode — **deferred to follow-up**
+
+The widget also supports a "session" mode (`sessionKey` prop set on `<QueryWidget>`) where a long-lived PG connection is reused across multiple `executeSessionQuery` calls. This adds four more endpoints (`createSession`, `sessionEvents` [NDJSON status stream], `executeSessionQuery`, `closeSession`) and a session lifecycle manager.
+
+For MVP we will **not pass `sessionKey`** to `<QueryWidget>`. Each query opens its own connection and closes it. Sessions can be a phase-2 add — the architecture leaves room for them.
+
+---
+
+## Apache Arrow encoding (PG row → Arrow IPC)
+
+The only non-trivial new piece. Plan:
+
+- Add `github.com/apache/arrow-go/v18` (or whatever the current canonical Go Arrow module is). It's well-maintained and supports the IPC stream writer (`ipc.NewWriter` over an `io.Writer`).
+- Use **`github.com/jackc/pgx/v5`** for the Postgres connection (already idiomatic; the CLI may already have it transitively). `pgx` exposes column OIDs which we map to Arrow types cleanly. `database/sql` only gives Go reflect types, which is lossier.
+
+Type mapping (MVP — narrow enough to cover the common Postgres/Timescale surface):
+
+| Postgres OID                       | Arrow type                          |
+|------------------------------------|-------------------------------------|
+| `bool`                             | `Boolean`                           |
+| `int2`                             | `Int16`                             |
+| `int4`                             | `Int32`                             |
+| `int8`                             | `Int64`                             |
+| `float4`                           | `Float32`                           |
+| `float8`                           | `Float64`                           |
+| `numeric`                          | `Utf8` (lose precision-aware decimal for now) |
+| `text`, `varchar`, `name`, `bpchar`| `Utf8`                              |
+| `bytea`                            | `Binary`                            |
+| `date`                             | `Date32`                            |
+| `timestamp`                        | `Timestamp[us]` (no tz)             |
+| `timestamptz`                      | `Timestamp[us, UTC]`                |
+| `uuid`                             | `Utf8` (16-byte FixedSizeBinary later) |
+| `json`, `jsonb`                    | `Utf8`                              |
+| arrays of the above                | `List<…>`                           |
+| anything else                      | `Utf8` (via pgx's text protocol)    |
+
+Batching: send a single record batch for MVP (the table widget is happy with one batch; we can split later for very large results).
+
+---
+
+## Repository changes (this repo)
+
+```
+ghost_serve/
+  internal/cmd/
+    serve.go                          NEW – Cobra command
+    serve_test.go                     NEW
+  internal/serve/
+    server.go                         NEW – net/http server + mux + listener
+    assets.go                         NEW – embed.FS resolver (SPA fallback, cache headers)
+    bootstrap.go                      NEW – GET /api/bootstrap (projectId, version)
+    databases.go                      NEW – GET /api/databases (ghost-api passthrough)
+    execute.go                        NEW – POST /api/executeQuery (NDJSON producer)
+    arrow.go                          NEW – POST /api/arrowResults (Arrow IPC producer)
+    cancel.go                         NEW – POST /api/cancelRun
+    runs.go                           NEW – in-memory Run store keyed by runId
+    pgtypes.go                        NEW – PG OID → Arrow type mapping + value coercion
+    wire.go                           NEW – Go types matching widget request/response shapes
+    server_test.go                    NEW
+    assets_test.go                    NEW
+    execute_test.go                   NEW – uses pgx + a real test PG or pgmock
+    arrow_test.go                     NEW – validates IPC output via apache-arrow Go reader
+    web/                              NEW – embed root; web/dist contents land here
+      .gitkeep
+  web/                                NEW – Vite app workspace (not Go)
+    package.json
+    vite.config.ts
+    tsconfig.json
+    index.html
+    .gitignore                        (dist/, node_modules/)
+    src/
+      main.tsx
+      app.tsx
+      styles.css
+      components/
+        DatabasePicker.tsx
+        QueryPanel.tsx
+        Header.tsx
+      api/
+        bootstrap.ts                  (fetch /api/bootstrap once)
+        databases.ts                  (fetch /api/databases)
+      lib/
+        url-state.ts                  (?db=<id>)
+  scripts/
+    build-web.sh                      NEW – npm ci && npm run build && copy to internal/serve/web/
+  check                               UPDATED – run build-web.sh before go install
+  .github/workflows/*.yml             UPDATED – build web before go build/release
+  Dockerfile                          UPDATED – multi-stage node + go build
+  docs/cli/ghost_serve.md             AUTO-GENERATED via cmd/generate-docs
+  README.md                           UPDATED – Commands table + Usage examples
+  CLAUDE.md                           UPDATED – describe internal/serve/ and web/
+```
+
+---
+
+## The CLI command (`ghost serve`)
+
+`internal/cmd/serve.go`, all standard patterns from `CLAUDE.md`:
+
+- `SilenceUsage: true`, `RunE`, `ValidArgs: cobra.NoFileCompletions`.
+- Gated behind `GHOST_EXPERIMENTAL` until polished, then promoted.
+- Flags:
+  - `--port int` — explicit port; default `0` → kernel picks via `net.Listen("tcp", "127.0.0.1:0")`.
+  - `--host string` — bind address, default `127.0.0.1`. Warn if user overrides to non-loopback.
+  - `--no-open` — skip browser open.
+- Loads `App` via `PersistentPreRunE`. Uses `app.GetAll()` (config + client + projectID).
+- Browser open: reuse `common.OpenBrowserAsync(url)` (already used by `login` / `payment add`). Honors `--no-open`.
+- Shutdown on `cmd.Context().Done()` via `srv.Shutdown(ctx)`.
+- Analytics: add `serve` to `wrapCommands` in `root.go`. No sensitive args.
+
+Output (stderr to keep stdout free for future scripting use):
+```
+Listening on http://127.0.0.1:54321
+Opened browser. Press Ctrl+C to stop.
+```
+
+---
+
+## The web app (`web/`)
+
+### Stack
+
+- **React 19**, **Vite 7**, **TypeScript 5**.
+- **Tailwind v3.3** — required because `@timescale/popsql-query-widget` is pinned to v3 (its config re-exports `@popsql/lollipop/tailwind.config`).
+- **TanStack Query v5** for `/api/databases` and `/api/bootstrap` polling.
+- `@timescale/popsql-query-widget` (private npm) + its peer deps: `react@19`, `react-dom@19`, `framer-motion@^12`.
+- Single CSS import: `@timescale/popsql-query-widget/index.css` (precompiled by the widget's `bin/package.sh`).
+
+### Layout
+
+```
+┌────────────────────────────────────────────────────────────┐
+│  ghost                                       [ db-name ▾ ] │
+├────────────────────────────────────────────────────────────┤
+│                                                            │
+│  <QueryWidget id="…" query={query} … />                    │
+│                                                            │
+└────────────────────────────────────────────────────────────┘
+```
+
+- Header: ghost logo + database `<select>` populated from `GET /api/databases`. Selection mirrored to `?db=<id>`.
+- Body: full-height `<QueryWidget>`. Empty state when no DB selected.
+- Auto-select if exactly one ready database. Non-ready statuses shown but disabled.
+
+### Wiring the widget
+
+```tsx
+<TimescaleResultsCacheContextProvider baseUrl={window.location.origin}>
+  <QueryWidgetProvider theme="light">
+    <ContextMenuProvider>
+      <QueryWidget
+        id={`ghost-${databaseId}`}
+        query={query}
+        onQueryChange={setQuery}
+        // sessionKey intentionally omitted → one-shot ephemeral mode
+        getExecuteQueryData={({ runId, query }) => ({
+          engine: ExecuteQueryEngine.timescaleQuery,
+          params: { projectId, serviceId: databaseId, query, runId },
+        })}
+      />
+      <ContextMenuContext.Consumer>{({ render }) => render()}</ContextMenuContext.Consumer>
+    </ContextMenuProvider>
+  </QueryWidgetProvider>
+</TimescaleResultsCacheContextProvider>
+```
+
+`projectId` is fetched from `GET /api/bootstrap` at app boot; `databaseId` comes from the picker (and URL state). The widget hits `${origin}/api/{executeQuery,arrowResults,cancelRun}` — all served by the Go server in-process.
+
+### Vite config
+
+- `server.proxy` forwards `/api/*` to a configurable local port for dev mode (`ghost serve --port 5174` while Vite runs on `:5173`).
+- Copy Monaco workers + DuckDB workers/wasm into the build output adjacent to `index.js` (port the relevant `Vite.config.ts` plugin from `web-cloud/vite.config.ts:30-203`).
+- Exclude `@timescale/popsql-query-widget` from `optimizeDeps` so workers resolve sibling chunks correctly.
+- Output to `web/dist/`.
+
+---
+
+## The local HTTP server (`internal/serve/`)
+
+### Routes
+
+```
+GET   /healthz             → {"ok":true}
+GET   /api/bootstrap       → { projectId, version }
+GET   /api/databases       → ghost-api passthrough (list user's databases)
+POST  /api/executeQuery    → NDJSON producer; runs query in-process
+POST  /api/arrowResults    → Arrow IPC producer; consumes runId state
+POST  /api/cancelRun       → best-effort pg_cancel_backend
+*     everything else      → embedded SPA (SPA fallback to index.html)
+```
+
+`/api/databases` is the only ghost-api hop. Implemented as a thin call: read the API client from `App`, hit `ListDatabases`, return the JSON shape the SPA expects (probably the API's own DTO — defer trimming until UI work). Password lookup happens lazily inside `executeQuery` via `common.GetPassword`, not in `/api/databases`.
+
+### Static asset serving (`assets.go`)
+
+- `//go:embed all:web` rooted at `internal/serve/web/`. Built by `scripts/build-web.sh`.
+- Resolver:
+  - `/` → `/index.html`.
+  - Exact FS match → serve with detected `Content-Type`.
+  - Path with no extension in last segment → `index.html` (SPA fallback).
+  - Otherwise → 404.
+- Cache headers:
+  - `Cache-Control: public, max-age=31536000, immutable` for `/assets/*`.
+  - `Cache-Control: no-cache` for everything else.
+- Empty FS handling: if `index.html` is absent, serve a placeholder HTML linking to `scripts/build-web.sh`. Lets `go build` / `go test` work without a JS build.
+
+### `Run` store (`runs.go`)
+
+```go
+type Run struct {
+  ID          string
+  ProjectID   string
+  ServiceID   string
+  Schema      *arrow.Schema
+  Records     <-chan arrow.Record   // closed when query finishes
+  Done        chan struct{}         // closed on terminal status
+  Err         error                 // set before Done is closed
+  RowCount    int64
+  Cancel      context.CancelFunc    // cancels the pg query context
+  StartedAt   time.Time
+  FinishedAt  time.Time
+}
+```
+
+- `runs.Store` is a `sync.Map[string]*Run` keyed by `runId`.
+- Runs older than N minutes (e.g. 10) are reaped by a background goroutine after `Done` closes.
+- `executeQuery` registers a `Run`, kicks off the PG query in a goroutine, and returns the NDJSON stream from the same handler. The goroutine pushes record batches into `Run.Records`.
+- `arrowResults` looks up the `Run`, waits for `Schema` to be set, writes the IPC schema, then range-reads from `Run.Records` and writes each batch to the response with `Flush()`.
+- `cancelRun` calls `Run.Cancel()`.
+
+### `executeQuery` flow (`execute.go`)
+
+1. Decode request body into `wire.ExecuteQueryRequest`.
+2. Validate `projectId` matches the CLI's active project; reject mismatches with 403 (the binary is single-user but defense in depth).
+3. Resolve `serviceId` → `(host, port, database, sslmode, ...)` via `app.GetClient().GetDatabaseWithResponse(ctx, serviceID)` cache.
+4. Resolve password via `common.GetPassword(database)`. If `common.ErrPasswordNotFound`, terminate the stream with `{ "success": false, "error": { "message": "no password found — run 'ghost password <db>' or add to ~/.pgpass" } }`.
+5. `common.CheckReady(database)` — if not ready, return the same shape with the actionable message.
+6. Open a `pgx.Conn` (per-query, closed on goroutine exit).
+7. `conn.Query(ctx, sql)` — capture `FieldDescriptions` once available.
+8. Build `arrow.Schema` from the `FieldDescriptions` (`pgtypes.go`).
+9. Write `{ "columns": [...] }` NDJSON line to the executeQuery response writer + `http.Flusher.Flush()`. Register `Run.Schema` so `arrowResults` can proceed.
+10. Stream rows → `array.RecordBuilder` (chunked at e.g. 1024 rows per batch) → push each `arrow.Record` to `Run.Records`.
+11. On `rows.Err()`: close `Run.Records`, write `{ "success": false, "error": ... }`, close.
+12. On clean finish: close `Run.Records`, write `{ "success": true, "rowCount": N, ... }`, close.
+13. On `ctx.Done()` (client aborted or `/api/cancelRun` invoked): `pg_cancel_backend` via a side channel connection, mark `Run` with `error.cancel: true`.
+
+### `arrowResults` flow (`arrow.go`)
+
+1. Decode request body, look up `Run`.
+2. `Content-Type: application/vnd.apache.arrow.stream`.
+3. `ipc.NewWriter(w, ipc.WithSchema(run.Schema))`.
+4. Range over `Run.Records` — `writer.Write(record)` + `Flush()` after each.
+5. `writer.Close()` when the channel closes.
+6. If `Run.Err` was set before any batch arrived, return HTTP 500 with `{ error: { message: ... } }`.
+
+### `cancelRun` flow
+
+Look up `Run`, call `Run.Cancel()`. Return `204 No Content`. `executeQuery`'s goroutine sees `ctx.Done()` and terminates with `error.cancel: true`.
+
+### Port selection / browser open / shutdown
+
+Same as memory-engine's pattern, ported to Go:
+- `net.Listen("tcp", host+":0")` for kernel-assigned port (no probe/release race).
+- Explicit `--port` is strict — bind failure surfaces directly.
+- `common.OpenBrowserAsync(url)` (existing helper).
+- Graceful shutdown on `cmd.Context().Done()` via `srv.Shutdown(ctx)` with a 5s deadline.
+
+---
+
+## Asset embedding
+
+Same as the previous plan version — `embed.FS` rooted at `internal/serve/web/`, populated by `scripts/build-web.sh` (`cd web && npm ci && npm run build && cp -r dist/* ../internal/serve/web/`). `web/dist/` is git-ignored; `internal/serve/web/.gitkeep` makes `//go:embed` happy.
+
+Why not the memory-engine base64-into-TS approach: Go's `embed.FS` is the natural fit, keeps assets raw (no 4/3× inflation), and eliminates a build step.
+
+---
+
+## ghost-api changes
+
+**None.** This was the main motivation for the lean approach. The only ghost-api call from the local server is the read-only `ListDatabases` (and `GetDatabase` for password fetch), which already exist.
+
+---
+
+## Build / CI
+
+- `scripts/build-web.sh` runs `npm ci` + `npm run build` and syncs `web/dist/` → `internal/serve/web/`.
+- `check` script runs `scripts/build-web.sh` before `go install`.
+- CI: in `.github/workflows/*.yml`, install Node 22, run `scripts/build-web.sh` before any Go build step (test, lint, release).
+- `Dockerfile`: multi-stage — `node:22` stage builds `web/dist/` and copies into `internal/serve/web/`, then `golang:1.x` stage builds the binary.
+- Release pipeline (GoReleaser) needs Node available — easiest is to invoke `scripts/build-web.sh` as a `before` hook in `.goreleaser.yaml`.
+- Binary size impact: rough order-of-magnitude based on memory-engine (~7MB compressed assets, mostly Monaco + DuckDB-WASM). Acceptable.
+
+---
+
+## Testing
+
+### Go side (`CLAUDE.md` patterns)
+
+- `internal/cmd/serve_test.go` — `runCommand` harness with mock API client; assert `--no-open`, auto-port, explicit port collision error, graceful shutdown on context cancel.
+- `internal/serve/server_test.go` — full-stack server, `/healthz`, `/api/bootstrap`, asset serving, SPA fallback, 404 on missing static asset.
+- `internal/serve/assets_test.go` — covers cache headers (`/assets/*` immutable, others no-cache).
+- `internal/serve/execute_test.go` — fires a real PG query against a `pgmock` or a containerized Postgres (CI), asserts NDJSON output: `columns` line, then `success` line; verifies the parallel `/api/arrowResults` returns a valid IPC stream that round-trips through Apache Arrow Go's reader and matches the expected rows.
+- `internal/serve/arrow_test.go` — unit tests for PG OID → Arrow type mapping, value coercion edge cases (null, numeric, array, json, timestamptz).
+- `internal/serve/cancel_test.go` — verifies `/api/cancelRun` interrupts a long-running query and surfaces `error.cancel: true` on executeQuery.
+
+### Web side
+
+- One Vitest unit per logic module: `lib/url-state.ts` round-trip, `api/databases.ts` selector behavior.
+- No widget integration tests; the widget is treated as a black box.
+
+### End-to-end (optional, follow-up)
+
+- Playwright smoke: spin up `ghost serve --no-open --port 5599` against a test ghost database, drive the UI to run `select 1`, assert the result table shows `1`.
+
+---
+
+## Out of scope (for MVP)
+
+- Session mode (`createSession`, `sessionEvents`, `executeSessionQuery`, `closeSession`).
+- Saving / loading queries; per-DB query history.
+- Schema browser sidebar.
+- Multi-tab queries.
+- Numeric precision-preserving Arrow `Decimal128` (we use `Utf8` for `numeric`).
+- Query timeout enforcement beyond the existing `HTTPClient.Timeout`.
+- Auth on the localhost listener (loopback bind is the boundary).
+- Embedding into the docker image as a primary use case — Dockerfile still works but `ghost serve` from inside a container isn't a target.
+
+---
+
+## Decisions (locked in)
+
+| # | Topic | Decision |
+|---|-------|----------|
+| 1 | Apache Arrow Go dep | Yes — keep the widget unmodified, ship the Arrow dep. |
+| 2 | DB driver | `pgx/v5` — copy popsql-query's approach verbatim. |
+| 3 | Browser open | Open by default; `--no-open` flag opts out. |
+| 4 | Web app dir | `web/` at repo root. |
+| 5 | JS package manager | **Bun**, via a self-bootstrapping `./bun` wrapper script (copied from `../ox/bun`). No new system dependencies. |
+| 6 | Private npm registry | `@timescale/*` is on GitHub Packages. Translate `web-cloud/.yarnrc.yml` into `bunfig.toml`'s `[install.scopes]` block; CI gets the token from `GITHUB_TOKEN` or a fine-grained PAT, mirroring web-cloud's deploy-to-dev workflow. |
+| 7 | Tailwind | v3 — widget is pinned to v3. |
+| 8 | Not-logged-in handling | Fail fast with the standard `ghost login` hint. |
+| 9 | Session mode | **In MVP.** `sessionKey` is derived from the selected database ID — switching DBs invalidates the session; page reload mints a new one; `SessionError` triggers the widget's built-in re-create flow. |
+| 10 | Project scope | No project switcher; SPA inherits the CLI's active space. |
+| 11 | Localhost auth | No URL token; bind to `127.0.0.1` only. |
+| 12 | Type handling | Copy popsql-query's PG OID → Arrow type + value coercion logic verbatim. Don't redesign. |
+| 13 | E2E testing | Playwright + Chrome DevTools MCP. Throwaway test DB via `ghost create`. |
+
+---
+
+## Progress
+
+- [x] Research: widget exports + wire protocol
+- [x] Research: web-cloud integration patterns
+- [x] Research: memory-engine `me serve` implementation
+- [x] Plan v1 — proxy-through-ghost-api architecture
+- [x] Plan v2 — in-process query execution architecture (this document)
+- [x] Discovery: popsql-query type mapping + Arrow writer + cancellation
+- [x] Discovery: `../ox/bun` self-bootstrap wrapper
+- [x] Discovery: `web-cloud/.yarnrc.yml` + deploy-to-dev GH workflow → bun equivalent
+- [x] Discovery: Arrow Go module path + pgx version pinning
+- [ ] Step 1 — `ghost serve` skeleton + static SPA + `/api/databases`
+- [ ] Step 2 — query execution path (executeQuery, arrowResults, sessions, cancel)
+- [ ] Step 3 — polish, docs, ungate from `GHOST_EXPERIMENTAL`
+- [ ] E2E test pass
+
+---
+
+## Discovery findings
+
+### popsql-query — what to port verbatim
+
+Layout (`/Users/murrayju/dev/timescale/popsql-query/internal/`):
+
+| Path | Lines | Action |
+|------|-------|--------|
+| `types/{binary,date,guid,json,numeric,types}.go` | 290 | **Port verbatim** — custom scan types preserving precision/special values (NaN, ±Inf, Postgres `bytea` hex format, plain Date/DateTime without TZ, Numeric, JSON, GUID). |
+| `driver/adapter.go` | 219 | **Port partial** — keep `baseAdapter` / `baseDriver` / `Rows` / `QueryArgs` / `Columns` machinery and `cancelContext` helper; drop the multi-driver registry (we only need PG). |
+| `driver/postgres.go` | ~250 | **Port verbatim** — `pgx/v5/stdlib.OpenDB` integration, `postgresQueryTracer` for `CommandTag.RowsAffected()`, `scanType` overrides for JSON/JSONB/NUMERIC/BYTEA/DATE/TIMESTAMP/TIMESTAMPTZ, `NormalizeError` for `pgconn.PgError` (fatal flag, code/detail/hint/position, multi-statement guard). |
+| `writer/arrow.go` | ~340 | **Port verbatim** — `RecordBuilder` wrapper around `array.RecordBuilder`; appends `__popsql_row_num__` Int64 column to every schema (preserves original row order); attaches `__popsql_columns__` JSON metadata to the schema (original column descriptors round-trip to the frontend); `arrowType()` + `builderFn` mapping by `ScanType`. |
+| `writer/record.go` | 307 | **Port partial** — the row-iteration loop + record-flush logic. |
+| `writer/result.go` | 393 | **Port partial** — only the success/error result envelopes; drop Parquet/CSV/TSV writers. |
+| `handler.go`, `run.go`, `session.go`, `store.go` | 1311 | **Do NOT port** — we write fresh handlers that match the widget's wire protocol (different URL shape, different request bodies, single-user, no Redis clustering, no S3 upload). |
+
+Key patterns inherited:
+
+- **Cancellation**: `pgConn.CancelRequest(ctx)` is the canonical pg cancel — captured via `b.conn.Raw(func(driverConn any) error { pgConn = driverConn.(*stdlib.Conn).Conn().PgConn(); return nil })` after `stdlib.OpenDB`. Wired through `cancelContext()` in `adapter.go`.
+- **Row order**: Arrow batches don't guarantee row order across batches, so popsql-query appends a synthetic `__popsql_row_num__` Int64 column. We adopt the same convention so the widget's table component renders in query order.
+- **Schema metadata**: original column descriptors (with PG type name) are JSON-encoded and stashed in the Arrow schema's metadata under `__popsql_columns__`. The frontend uses this for type-aware rendering.
+- **Application name**: connections set `application_name` to a constant for server-side identification (port the constant; rename it to `"ghost-cli"` or similar).
+- **SSL handling**: pgx's default `sslmode=prefer` is used unless an explicit TLS config is set, in which case `pgxCfg.Fallbacks = nil` to require encryption. Ghost cloud DBs require TLS, so we'll set explicit TLS config.
+
+### `../ox/bun` self-bootstrap wrapper
+
+431-byte bash script. Pinned to `bun-v1.3.11`. Downloads to `./download/bun/<version>/bin/bun` on first invocation via the official `https://bun.sh/install` script with `BUN_INSTALL` env override. `exec`s the downloaded binary with all forwarded args.
+
+**Action**: copy verbatim to `./bun` in this repo; add `download/` to `.gitignore`.
+
+### GitHub Packages registry auth
+
+Web-cloud (`deploy-to-dev.yml`) uses the auto-provisioned `secrets.GITHUB_TOKEN`:
+
+```yaml
+- name: Setup .yarnrc.yml
+  run: yarn config set npmScopes.timescale.npmAuthToken $NPM_AUTH_TOKEN
+  env:
+    NPM_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+```
+
+Bun reads `.npmrc` natively (and `bunfig.toml` for bun-specific options). Plan:
+
+- `web/.npmrc` (gitignored, committed-template version is `web/.npmrc.example`):
+  ```
+  @timescale:registry=https://npm.pkg.github.com/
+  //npm.pkg.github.com/:_authToken=${NPM_AUTH_TOKEN}
+  ```
+- CI sets `NPM_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}` on the bun-install step.
+- Local devs export `NPM_AUTH_TOKEN` to a GitHub PAT with `read:packages` scope (documented in README).
+
+### Module versions (locked to match popsql-query)
+
+- `github.com/apache/arrow-go/v18 v18.5.2`
+- `github.com/jackc/pgx/v5 v5.8.0` (`stdlib`, `pgconn`)
+- Indirect deps already pulled by popsql-query (`pgpassfile`, `pgservicefile`, `puddle/v2`).
+
+---
+
+## Sequencing suggestion
+
+Single PR is plausible but reviewable in three logical sub-stacks:
+
+1. **Step 1**: `ghost serve` command skeleton + `internal/serve/{server,assets,bootstrap,databases}.go`, `web/` with picker + "hello world" body. Builds, runs, opens browser, lists databases, no query execution yet. Behind `GHOST_EXPERIMENTAL`.
+2. **Step 2**: `internal/serve/{execute,arrow,runs,pgtypes,cancel}.go` and the Arrow Go dep. Wire `<QueryWidget>` into the SPA. End-to-end query execution working.
+3. **Step 3**: polish (cache reaping, error message tuning, README + `docs/cli/`); ungate from `GHOST_EXPERIMENTAL`.
+4. **Step 4 (later)**: session mode.
+
+Each step lands as its own PR with `murrayju/` prefix.

From ca6d3524e6472c174cb647cf459743069b1781c5 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Thu, 28 May 2026 18:33:40 -0400
Subject: [PATCH 02/39] Add ghost serve skeleton

Step 1 of the ghost serve plan: a minimal Cobra command (gated behind
GHOST_EXPERIMENTAL) that boots an in-process net/http server on a
loopback interface, embeds a Vite/React placeholder via embed.FS, and
proxies a single read-only ghost-api passthrough at /api/databases.

What is here:

- internal/cmd/serve.go - Cobra command with --port / --host / --no-open.
- internal/serve/server.go - net/http mux, listener with OS-picked port,
  graceful shutdown on cmd.Context() cancel.
- internal/serve/assets.go - embed.FS-backed asset handler with SPA
  fallback (no-extension -> index.html), Vite-style immutable cache for
  /assets/*, no-cache for index.html, plus a placeholder page when no UI
  bundle has been built.
- internal/serve/bootstrap.go - /api/bootstrap returns projectId+version.
- internal/serve/databases.go - /api/databases thin passthrough to
  ListDatabases.
- web/ - Vite 7 + React 19 + Tailwind v3 + TanStack Query workspace.
  Header + DB picker stub; widget integration deferred to step 2.
- bun - self-bootstrapping wrapper script (pinned to bun-v1.3.11),
  copied from ../ox. No new system dependencies for the build.
- scripts/build-web.sh - runs bun install + bun run build, copies
  web/dist into internal/serve/web/ for the //go:embed directive.
- check - invokes build-web.sh before go install.

Query execution (executeQuery / arrowResults / sessions / cancel) lands
in step 2 alongside the type-mapping port from popsql-query.
---
 .gitignore                  |   8 +++
 bun                         |  17 ++++++
 check                       |   2 +
 internal/cmd/root.go        |   3 +
 internal/cmd/serve.go       |  64 ++++++++++++++++++++
 internal/serve/assets.go    | 106 +++++++++++++++++++++++++++++++++
 internal/serve/bootstrap.go |  28 +++++++++
 internal/serve/databases.go |  55 +++++++++++++++++
 internal/serve/server.go    | 105 ++++++++++++++++++++++++++++++++
 internal/serve/web/.gitkeep |   0
 scripts/build-web.sh        |  23 ++++++++
 web/.npmrc.example          |   2 +
 web/index.html              |  13 ++++
 web/package.json            |  30 ++++++++++
 web/postcss.config.cjs      |   6 ++
 web/src/app.tsx             | 115 ++++++++++++++++++++++++++++++++++++
 web/src/main.tsx            |  21 +++++++
 web/src/styles.css          |   3 +
 web/tailwind.config.ts      |   9 +++
 web/tsconfig.json           |  25 ++++++++
 web/vite.config.ts          |  21 +++++++
 21 files changed, 656 insertions(+)
 create mode 100755 bun
 create mode 100644 internal/cmd/serve.go
 create mode 100644 internal/serve/assets.go
 create mode 100644 internal/serve/bootstrap.go
 create mode 100644 internal/serve/databases.go
 create mode 100644 internal/serve/server.go
 create mode 100644 internal/serve/web/.gitkeep
 create mode 100755 scripts/build-web.sh
 create mode 100644 web/.npmrc.example
 create mode 100644 web/index.html
 create mode 100644 web/package.json
 create mode 100644 web/postcss.config.cjs
 create mode 100644 web/src/app.tsx
 create mode 100644 web/src/main.tsx
 create mode 100644 web/src/styles.css
 create mode 100644 web/tailwind.config.ts
 create mode 100644 web/tsconfig.json
 create mode 100644 web/vite.config.ts

diff --git a/.gitignore b/.gitignore
index e2ff153..fb9f112 100644
--- a/.gitignore
+++ b/.gitignore
@@ -60,3 +60,11 @@ mcp-publisher
 # Local files
 todo.md
 new.md
+
+# ghost serve
+/download/
+web/node_modules/
+web/dist/
+web/.npmrc
+internal/serve/web/*
+!internal/serve/web/.gitkeep
diff --git a/bun b/bun
new file mode 100755
index 0000000..9a54809
--- /dev/null
+++ b/bun
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+version="bun-v1.3.11"
+scriptDir="$(cd "$(dirname "$0")" && pwd)"
+downloadDir="$scriptDir/download/bun/${version}"
+bunCmd="$downloadDir/bin/bun"
+
+if [ ! -f "$bunCmd" ]; then
+    echo Installing bun to "$bunCmd"
+    bashArgs=()
+    if [ "$version" != "latest" ]; then
+        bashArgs=(-s "$version")
+    fi
+    curl -fsSL https://bun.sh/install | BUN_INSTALL="$downloadDir" bash "${bashArgs[@]}"
+fi
+
+exec "$bunCmd" "$@"
\ No newline at end of file
diff --git a/check b/check
index b460556..970a63b 100755
--- a/check
+++ b/check
@@ -1,6 +1,8 @@
 #!/bin/sh
 set -ex
 
+./scripts/build-web.sh
+
 go install ./...
 go fmt ./...
 go mod tidy
diff --git a/internal/cmd/root.go b/internal/cmd/root.go
index a859618..5fccfbf 100644
--- a/internal/cmd/root.go
+++ b/internal/cmd/root.go
@@ -143,6 +143,9 @@ monthly usage.`,
 	cmd.AddCommand(buildUpgradeCmd(app))
 	cmd.AddCommand(buildInvoiceCmd(app))
 	cmd.AddCommand(buildOveragesCmd(app))
+	if app.Experimental {
+		cmd.AddCommand(buildServeCmd(app))
+	}
 
 	wrapCommands(cmd, app)
 
diff --git a/internal/cmd/serve.go b/internal/cmd/serve.go
new file mode 100644
index 0000000..67c58f3
--- /dev/null
+++ b/internal/cmd/serve.go
@@ -0,0 +1,64 @@
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+
+	"github.com/timescale/ghost/internal/common"
+	"github.com/timescale/ghost/internal/serve"
+)
+
+func buildServeCmd(app *common.App) *cobra.Command {
+	var port int
+	var host string
+	var noOpen bool
+
+	cmd := &cobra.Command{
+		Use:   "serve",
+		Short: "Launch a local web UI for running SQL queries",
+		Long: `Start a local web server on 127.0.0.1 and open a browser to a UI that lets
+you run SQL queries against your ghost databases. The server runs only for
+the duration of this command — press Ctrl+C to stop it.`,
+		Example: `  # Launch on an auto-picked port and open the browser
+  ghost serve
+
+  # Pin a port and skip the browser
+  ghost serve --port 5174 --no-open`,
+		Args:              cobra.NoArgs,
+		ValidArgsFunction: cobra.NoFileCompletions,
+		SilenceUsage:      true,
+		RunE: func(cmd *cobra.Command, _ []string) error {
+			client, projectID, err := app.GetClient()
+			if err != nil {
+				return err
+			}
+
+			srv, err := serve.New(serve.Config{
+				Host:      host,
+				Port:      port,
+				Client:    client,
+				ProjectID: projectID,
+			})
+			if err != nil {
+				return err
+			}
+
+			url := srv.URL()
+			cmd.PrintErrf("Listening on %s\n", url)
+
+			if !noOpen {
+				if err := common.OpenBrowser(url); err != nil {
+					cmd.PrintErrf("Failed to open browser: %v\n", err)
+				}
+			}
+			cmd.PrintErrln("Press Ctrl+C to stop.")
+
+			return srv.Serve(cmd.Context())
+		},
+	}
+
+	cmd.Flags().IntVar(&port, "port", 0, "TCP port to listen on (0 = auto)")
+	cmd.Flags().StringVar(&host, "host", "127.0.0.1", "interface to bind (loopback by default)")
+	cmd.Flags().BoolVar(&noOpen, "no-open", false, "do not open the browser")
+
+	return cmd
+}
diff --git a/internal/serve/assets.go b/internal/serve/assets.go
new file mode 100644
index 0000000..26ad702
--- /dev/null
+++ b/internal/serve/assets.go
@@ -0,0 +1,106 @@
+package serve
+
+import (
+	"embed"
+	"errors"
+	"io/fs"
+	"mime"
+	"net/http"
+	"path"
+	"strings"
+)
+
+//go:embed all:web
+var embeddedAssets embed.FS
+
+// webFS is the subtree of embeddedAssets rooted at "web/". Populated in init
+// so each request handler doesn't need to repeat the fs.Sub call.
+var webFS fs.FS
+
+func init() {
+	sub, err := fs.Sub(embeddedAssets, "web")
+	if err != nil {
+		panic(err)
+	}
+	webFS = sub
+}
+
+// hasBundledUI reports whether scripts/build-web.sh has been run and the
+// resulting index.html is present in the embed. When false, the server falls
+// back to a small placeholder page that tells the user how to build the UI.
+func hasBundledUI() bool {
+	_, err := fs.Stat(webFS, "index.html")
+	return err == nil
+}
+
+const placeholderHTML = `<!doctype html>
+<html><head><meta charset="utf-8"><title>ghost serve</title>
+<style>body{font-family:system-ui,sans-serif;max-width:38rem;margin:4rem auto;padding:0 1rem;color:#0f172a}
+code{background:#f1f5f9;padding:2px 6px;border-radius:4px;font-size:.9em}</style>
+</head><body>
+<h1>ghost serve</h1>
+<p>The web UI bundle has not been built into this binary.</p>
+<p>Run <code>./scripts/build-web.sh</code> from the repo root, then rebuild the binary.</p>
+</body></html>
+`
+
+// newAssetHandler serves embedded SPA files. Behavior:
+//   - "/" -> index.html
+//   - exact match in webFS -> served with detected content type
+//   - last segment has no "." -> SPA fallback to index.html
+//   - otherwise -> 404
+//
+// Cache headers: /assets/* gets immutable + max-age=1y (Vite hashed files);
+// everything else gets no-cache.
+func newAssetHandler() http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if !hasBundledUI() {
+			w.Header().Set("Content-Type", "text/html; charset=utf-8")
+			w.Header().Set("Cache-Control", "no-cache")
+			_, _ = w.Write([]byte(placeholderHTML))
+			return
+		}
+
+		urlPath := r.URL.Path
+		if urlPath == "/" {
+			urlPath = "/index.html"
+		}
+		clean := strings.TrimPrefix(path.Clean(urlPath), "/")
+
+		data, err := fs.ReadFile(webFS, clean)
+		if err != nil {
+			if !errors.Is(err, fs.ErrNotExist) {
+				http.Error(w, "asset read error", http.StatusInternalServerError)
+				return
+			}
+			// SPA fallback: paths without an extension (no "." in last segment)
+			// fall through to index.html so client-side routing works.
+			last := path.Base(clean)
+			if strings.Contains(last, ".") {
+				http.NotFound(w, r)
+				return
+			}
+			data, err = fs.ReadFile(webFS, "index.html")
+			if err != nil {
+				http.Error(w, "index.html missing from bundle", http.StatusInternalServerError)
+				return
+			}
+			clean = "index.html"
+		}
+
+		ext := path.Ext(clean)
+		contentType := mime.TypeByExtension(ext)
+		if contentType == "" {
+			contentType = "application/octet-stream"
+		}
+		w.Header().Set("Content-Type", contentType)
+
+		if strings.HasPrefix(clean, "assets/") {
+			w.Header().Set("Cache-Control", "public, max-age=31536000, immutable")
+		} else {
+			w.Header().Set("Cache-Control", "no-cache")
+		}
+
+		_, _ = w.Write(data)
+	})
+}
diff --git a/internal/serve/bootstrap.go b/internal/serve/bootstrap.go
new file mode 100644
index 0000000..8528b31
--- /dev/null
+++ b/internal/serve/bootstrap.go
@@ -0,0 +1,28 @@
+package serve
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/timescale/ghost/internal/config"
+)
+
+type bootstrapResponse struct {
+	ProjectID string `json:"projectId"`
+	Version   string `json:"version"`
+}
+
+func newBootstrapHandler(projectID string) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodGet {
+			http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		w.Header().Set("Cache-Control", "no-store")
+		_ = json.NewEncoder(w).Encode(bootstrapResponse{
+			ProjectID: projectID,
+			Version:   config.Version,
+		})
+	})
+}
diff --git a/internal/serve/databases.go b/internal/serve/databases.go
new file mode 100644
index 0000000..4019201
--- /dev/null
+++ b/internal/serve/databases.go
@@ -0,0 +1,55 @@
+package serve
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+
+	"github.com/timescale/ghost/internal/api"
+	"github.com/timescale/ghost/internal/common"
+)
+
+type databaseListItem struct {
+	ID     string `json:"id"`
+	Name   string `json:"name"`
+	Status string `json:"status"`
+	Type   string `json:"type"`
+}
+
+func newDatabasesHandler(client api.ClientWithResponsesInterface, projectID string) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodGet {
+			http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+			return
+		}
+
+		resp, err := client.ListDatabasesWithResponse(r.Context(), projectID)
+		if err != nil {
+			http.Error(w, fmt.Sprintf("list databases: %v", err), http.StatusBadGateway)
+			return
+		}
+		if resp.StatusCode() != http.StatusOK {
+			http.Error(w, common.ExitWithErrorFromStatusCode(resp.StatusCode(), resp.JSONDefault).Error(), resp.StatusCode())
+			return
+		}
+		if resp.JSON200 == nil {
+			http.Error(w, errors.New("empty response from API").Error(), http.StatusBadGateway)
+			return
+		}
+
+		out := make([]databaseListItem, len(*resp.JSON200))
+		for i, db := range *resp.JSON200 {
+			out[i] = databaseListItem{
+				ID:     db.Id,
+				Name:   db.Name,
+				Status: string(db.Status),
+				Type:   string(db.Type),
+			}
+		}
+
+		w.Header().Set("Content-Type", "application/json")
+		w.Header().Set("Cache-Control", "no-store")
+		_ = json.NewEncoder(w).Encode(out)
+	})
+}
diff --git a/internal/serve/server.go b/internal/serve/server.go
new file mode 100644
index 0000000..2ce1889
--- /dev/null
+++ b/internal/serve/server.go
@@ -0,0 +1,105 @@
+package serve
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net"
+	"net/http"
+	"strconv"
+	"time"
+
+	"github.com/timescale/ghost/internal/api"
+)
+
+// Config configures a Server instance.
+type Config struct {
+	// Host is the bind address. Use "127.0.0.1" for loopback-only (recommended).
+	Host string
+	// Port is the bind port. 0 lets the OS choose a free port.
+	Port int
+	// Client is the authenticated ghost-api client.
+	Client api.ClientWithResponsesInterface
+	// ProjectID is the active space/project ID.
+	ProjectID string
+}
+
+// Server wraps the HTTP server and exposes the resolved listen address.
+type Server struct {
+	cfg    Config
+	srv    *http.Server
+	ln     net.Listener
+	addr   string
+}
+
+// New constructs a Server with all routes registered. The listener is bound
+// (so the resolved address is available immediately) but not yet serving.
+// Call Serve to begin handling requests.
+func New(cfg Config) (*Server, error) {
+	if cfg.Host == "" {
+		cfg.Host = "127.0.0.1"
+	}
+	if cfg.Client == nil {
+		return nil, errors.New("serve: api client is required")
+	}
+	if cfg.ProjectID == "" {
+		return nil, errors.New("serve: project id is required")
+	}
+
+	addr := net.JoinHostPort(cfg.Host, strconv.Itoa(cfg.Port))
+	ln, err := net.Listen("tcp", addr)
+	if err != nil {
+		return nil, fmt.Errorf("listen on %s: %w", addr, err)
+	}
+
+	mux := http.NewServeMux()
+	mux.Handle("GET /healthz", healthzHandler())
+	mux.Handle("GET /api/bootstrap", newBootstrapHandler(cfg.ProjectID))
+	mux.Handle("GET /api/databases", newDatabasesHandler(cfg.Client, cfg.ProjectID))
+	mux.Handle("/", newAssetHandler())
+
+	return &Server{
+		cfg:  cfg,
+		srv:  &http.Server{Handler: mux, ReadHeaderTimeout: 10 * time.Second},
+		ln:   ln,
+		addr: ln.Addr().String(),
+	}, nil
+}
+
+// Addr returns the resolved listen address (with the OS-chosen port if Port
+// was 0).
+func (s *Server) Addr() string { return s.addr }
+
+// URL returns the http://addr URL clients should connect to.
+func (s *Server) URL() string { return "http://" + s.addr }
+
+// Serve starts handling requests and blocks until ctx is canceled. On
+// cancellation the server is gracefully shut down with a 5s deadline.
+func (s *Server) Serve(ctx context.Context) error {
+	errCh := make(chan error, 1)
+	go func() {
+		err := s.srv.Serve(s.ln)
+		if errors.Is(err, http.ErrServerClosed) {
+			err = nil
+		}
+		errCh <- err
+	}()
+
+	select {
+	case <-ctx.Done():
+		shutdownCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+		_ = s.srv.Shutdown(shutdownCtx)
+		return <-errCh
+	case err := <-errCh:
+		return err
+	}
+}
+
+func healthzHandler() http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(map[string]bool{"ok": true})
+	})
+}
diff --git a/internal/serve/web/.gitkeep b/internal/serve/web/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/scripts/build-web.sh b/scripts/build-web.sh
new file mode 100755
index 0000000..5b67894
--- /dev/null
+++ b/scripts/build-web.sh
@@ -0,0 +1,23 @@
+#!/bin/sh
+set -eu
+
+# Build the React web app and stage its output into internal/serve/web/ for
+# Go's //go:embed directive.
+#
+# Requires NPM_AUTH_TOKEN to be exported (a GitHub PAT with read:packages
+# scope, or secrets.GITHUB_TOKEN in CI). The token is referenced from
+# web/.npmrc; copy web/.npmrc.example -> web/.npmrc once per checkout.
+
+repoRoot="$(cd "$(dirname "$0")/.." && pwd)"
+cd "$repoRoot"
+
+if [ ! -f web/.npmrc ]; then
+    cp web/.npmrc.example web/.npmrc
+fi
+
+./bun install --cwd web
+./bun --cwd web run build
+
+embedDir="internal/serve/web"
+find "$embedDir" -mindepth 1 ! -name '.gitkeep' -delete
+cp -R web/dist/. "$embedDir/"
diff --git a/web/.npmrc.example b/web/.npmrc.example
new file mode 100644
index 0000000..1a01701
--- /dev/null
+++ b/web/.npmrc.example
@@ -0,0 +1,2 @@
+@timescale:registry=https://npm.pkg.github.com/
+//npm.pkg.github.com/:_authToken=${NPM_AUTH_TOKEN}
diff --git a/web/index.html b/web/index.html
new file mode 100644
index 0000000..3e2a965
--- /dev/null
+++ b/web/index.html
@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>ghost</title>
+  </head>
+  <body class="h-screen w-screen overflow-hidden bg-slate-50 text-slate-900">
+    <div id="root" class="h-full w-full"></div>
+    <script type="module" src="/src/main.tsx"></script>
+  </body>
+</html>
diff --git a/web/package.json b/web/package.json
new file mode 100644
index 0000000..0cef94e
--- /dev/null
+++ b/web/package.json
@@ -0,0 +1,30 @@
+{
+  "name": "@ghost-cli/web",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "preview": "vite preview",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "@tanstack/react-query": "^5.62.7",
+    "@timescale/popsql-query-widget": "^0.0.1",
+    "framer-motion": "^12.0.0",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0"
+  },
+  "devDependencies": {
+    "@types/node": "^22.10.0",
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
+    "@vitejs/plugin-react": "^5.0.0",
+    "autoprefixer": "^10.4.20",
+    "postcss": "^8.4.49",
+    "tailwindcss": "^3.4.17",
+    "typescript": "^5.7.2",
+    "vite": "^7.0.0"
+  }
+}
diff --git a/web/postcss.config.cjs b/web/postcss.config.cjs
new file mode 100644
index 0000000..12a703d
--- /dev/null
+++ b/web/postcss.config.cjs
@@ -0,0 +1,6 @@
+module.exports = {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+  },
+};
diff --git a/web/src/app.tsx b/web/src/app.tsx
new file mode 100644
index 0000000..9787fe5
--- /dev/null
+++ b/web/src/app.tsx
@@ -0,0 +1,115 @@
+import { useQuery } from '@tanstack/react-query';
+import { useEffect, useState } from 'react';
+
+interface Bootstrap {
+  projectId: string;
+  version: string;
+}
+
+interface Database {
+  id: string;
+  name: string;
+  status: string;
+  type?: string;
+}
+
+async function fetchJSON<T>(path: string): Promise<T> {
+  const res = await fetch(path);
+  if (!res.ok) throw new Error(`${path}: ${res.status} ${res.statusText}`);
+  return res.json() as Promise<T>;
+}
+
+const READY_STATUSES = new Set(['ready', 'running']);
+
+function getUrlDbId(): string | null {
+  return new URLSearchParams(window.location.search).get('db');
+}
+
+function setUrlDbId(id: string | null) {
+  const url = new URL(window.location.href);
+  if (id) url.searchParams.set('db', id);
+  else url.searchParams.delete('db');
+  window.history.replaceState(null, '', url.toString());
+}
+
+export function App() {
+  const bootstrap = useQuery({
+    queryKey: ['bootstrap'],
+    queryFn: () => fetchJSON<Bootstrap>('/api/bootstrap'),
+  });
+  const databases = useQuery({
+    queryKey: ['databases'],
+    queryFn: () => fetchJSON<Database[]>('/api/databases'),
+    refetchInterval: 10_000,
+  });
+
+  const [selectedId, setSelectedId] = useState<string | null>(getUrlDbId);
+
+  useEffect(() => {
+    if (!databases.data || selectedId) return;
+    const ready = databases.data.find((db) => READY_STATUSES.has(db.status));
+    if (databases.data.length === 1) {
+      setSelectedId(databases.data[0]!.id);
+    } else if (ready && databases.data.filter((db) => READY_STATUSES.has(db.status)).length === 1) {
+      setSelectedId(ready.id);
+    }
+  }, [databases.data, selectedId]);
+
+  useEffect(() => {
+    setUrlDbId(selectedId);
+  }, [selectedId]);
+
+  const selected = databases.data?.find((db) => db.id === selectedId) ?? null;
+
+  return (
+    <div className="flex h-full flex-col">
+      <header className="flex items-center justify-between border-b border-slate-200 bg-white px-4 py-2">
+        <div className="font-mono text-lg font-semibold tracking-tight">ghost</div>
+        <div className="flex items-center gap-2 text-sm">
+          {databases.isError ? (
+            <span className="text-red-600">Failed to load databases</span>
+          ) : (
+            <select
+              className="rounded border border-slate-300 bg-white px-2 py-1 text-sm focus:border-slate-500 focus:outline-none"
+              value={selectedId ?? ''}
+              onChange={(e) => setSelectedId(e.target.value || null)}
+              disabled={databases.isLoading}
+            >
+              <option value="">
+                {databases.isLoading ? 'Loading…' : 'Select a database…'}
+              </option>
+              {databases.data?.map((db) => (
+                <option
+                  key={db.id}
+                  value={db.id}
+                  disabled={!READY_STATUSES.has(db.status)}
+                >
+                  {db.name} ({db.status})
+                </option>
+              ))}
+            </select>
+          )}
+        </div>
+      </header>
+      <main className="flex flex-1 items-center justify-center">
+        {bootstrap.isError ? (
+          <div className="text-red-600">Failed to load bootstrap config</div>
+        ) : !selected ? (
+          <div className="text-slate-500">Select a database to run queries.</div>
+        ) : (
+          <div className="rounded border border-slate-200 bg-white p-6 text-slate-700">
+            <div className="text-sm text-slate-500">project</div>
+            <div className="font-mono text-sm">{bootstrap.data?.projectId ?? '…'}</div>
+            <div className="mt-3 text-sm text-slate-500">database</div>
+            <div className="font-mono text-sm">
+              {selected.name} <span className="text-slate-400">({selected.id})</span>
+            </div>
+            <div className="mt-4 text-sm text-slate-400">
+              Query widget will render here in step 2.
+            </div>
+          </div>
+        )}
+      </main>
+    </div>
+  );
+}
diff --git a/web/src/main.tsx b/web/src/main.tsx
new file mode 100644
index 0000000..1d5d169
--- /dev/null
+++ b/web/src/main.tsx
@@ -0,0 +1,21 @@
+import { StrictMode } from 'react';
+import { createRoot } from 'react-dom/client';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
+
+import { App } from './app';
+import './styles.css';
+
+const queryClient = new QueryClient({
+  defaultOptions: { queries: { refetchOnWindowFocus: false } },
+});
+
+const rootElement = document.getElementById('root');
+if (!rootElement) throw new Error('missing #root element');
+
+createRoot(rootElement).render(
+  <StrictMode>
+    <QueryClientProvider client={queryClient}>
+      <App />
+    </QueryClientProvider>
+  </StrictMode>,
+);
diff --git a/web/src/styles.css b/web/src/styles.css
new file mode 100644
index 0000000..b5c61c9
--- /dev/null
+++ b/web/src/styles.css
@@ -0,0 +1,3 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
diff --git a/web/tailwind.config.ts b/web/tailwind.config.ts
new file mode 100644
index 0000000..fdb99b1
--- /dev/null
+++ b/web/tailwind.config.ts
@@ -0,0 +1,9 @@
+import type { Config } from 'tailwindcss';
+
+const config: Config = {
+  content: ['./index.html', './src/**/*.{ts,tsx}'],
+  theme: { extend: {} },
+  plugins: [],
+};
+
+export default config;
diff --git a/web/tsconfig.json b/web/tsconfig.json
new file mode 100644
index 0000000..f8e03ce
--- /dev/null
+++ b/web/tsconfig.json
@@ -0,0 +1,25 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "lib": ["ES2022", "DOM", "DOM.Iterable"],
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "jsx": "react-jsx",
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedIndexedAccess": true,
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "allowSyntheticDefaultImports": true,
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "verbatimModuleSyntax": true,
+    "useDefineForClassFields": true,
+    "allowImportingTsExtensions": true,
+    "noEmit": true,
+    "types": ["node"]
+  },
+  "include": ["src", "vite.config.ts"]
+}
diff --git a/web/vite.config.ts b/web/vite.config.ts
new file mode 100644
index 0000000..e87787f
--- /dev/null
+++ b/web/vite.config.ts
@@ -0,0 +1,21 @@
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+
+const ghostServePort = process.env.GHOST_SERVE_DEV_PORT ?? '5174';
+
+export default defineConfig({
+  plugins: [react()],
+  server: {
+    port: 5173,
+    strictPort: false,
+    proxy: {
+      '/api': { target: `http://127.0.0.1:${ghostServePort}`, changeOrigin: true },
+      '/healthz': { target: `http://127.0.0.1:${ghostServePort}`, changeOrigin: true },
+    },
+  },
+  build: {
+    outDir: 'dist',
+    emptyOutDir: true,
+    sourcemap: false,
+  },
+});

From 4cec245aa84550b8048e48207ef22fbb18788066 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Thu, 28 May 2026 18:39:20 -0400
Subject: [PATCH 03/39] Fix build-web.sh and pin widget version

- bun does not honor --cwd as a global flag in front of `run`; rewrite
  build-web.sh to cd into web/ instead.
- Pin @timescale/popsql-query-widget to 0.0.0-dev.156 (the latest
  published canary; the package is not yet on a stable version line).
- Commit web/bun.lock and ignore web/tsconfig.tsbuildinfo.

Full Step 1 pipeline now validates end-to-end: scripts/build-web.sh
produces internal/serve/web/{index.html,assets/...} and the rebuilt
Go binary embeds + serves them with correct cache headers and SPA
fallback.
---
 .gitignore           |   1 +
 plan.md              |  14 +-
 scripts/build-web.sh |   4 +-
 web/bun.lock         | 414 +++++++++++++++++++++++++++++++++++++++++++
 web/package.json     |   2 +-
 5 files changed, 431 insertions(+), 4 deletions(-)
 create mode 100644 web/bun.lock

diff --git a/.gitignore b/.gitignore
index fb9f112..eda5d7b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -66,5 +66,6 @@ new.md
 web/node_modules/
 web/dist/
 web/.npmrc
+web/tsconfig.tsbuildinfo
 internal/serve/web/*
 !internal/serve/web/.gitkeep
diff --git a/plan.md b/plan.md
index 1bf8ec1..48f0469 100644
--- a/plan.md
+++ b/plan.md
@@ -447,11 +447,23 @@ Why not the memory-engine base64-into-TS approach: Go's `embed.FS` is the natura
 - [x] Discovery: `../ox/bun` self-bootstrap wrapper
 - [x] Discovery: `web-cloud/.yarnrc.yml` + deploy-to-dev GH workflow → bun equivalent
 - [x] Discovery: Arrow Go module path + pgx version pinning
-- [ ] Step 1 — `ghost serve` skeleton + static SPA + `/api/databases`
+- [x] Step 1 — `ghost serve` skeleton + static SPA + `/api/databases` (Go side validated end-to-end; SPA build pending widget npm auth — see below)
 - [ ] Step 2 — query execution path (executeQuery, arrowResults, sessions, cancel)
 - [ ] Step 3 — polish, docs, ungate from `GHOST_EXPERIMENTAL`
 - [ ] E2E test pass
 
+### Blocker: `@timescale/popsql-query-widget` private-registry auth
+
+Bun install gets 403 from `https://npm.pkg.github.com/@timescale%2fpopsql-query-widget` because the default `gh auth` token only has `repo` / `read:org` scopes, not `read:packages`. The bun bootstrap itself and the rest of the dependency graph (407 packages) resolved fine.
+
+Fix options for the user:
+1. `gh auth refresh -h github.com -s read:packages` (adds the scope to the existing gh CLI token; nothing else changes).
+2. Create a fine-grained PAT at github.com/settings/tokens with `read:packages` scope and export `NPM_AUTH_TOKEN=<pat>` (one-off / CI-friendly).
+
+In CI, the auto-provisioned `secrets.GITHUB_TOKEN` already has `read:packages` (it does for repos that own the package, which we assume `timescale/ghost` does — needs confirmation).
+
+Once auth is unblocked, `./scripts/build-web.sh` produces `web/dist/` and the embed pipeline picks it up automatically on the next Go build.
+
 ---
 
 ## Discovery findings
diff --git a/scripts/build-web.sh b/scripts/build-web.sh
index 5b67894..12291c1 100755
--- a/scripts/build-web.sh
+++ b/scripts/build-web.sh
@@ -15,8 +15,8 @@ if [ ! -f web/.npmrc ]; then
     cp web/.npmrc.example web/.npmrc
 fi
 
-./bun install --cwd web
-./bun --cwd web run build
+(cd web && ../bun install)
+(cd web && ../bun run build)
 
 embedDir="internal/serve/web"
 find "$embedDir" -mindepth 1 ! -name '.gitkeep' -delete
diff --git a/web/bun.lock b/web/bun.lock
new file mode 100644
index 0000000..b73b38f
--- /dev/null
+++ b/web/bun.lock
@@ -0,0 +1,414 @@
+{
+  "lockfileVersion": 1,
+  "configVersion": 1,
+  "workspaces": {
+    "": {
+      "name": "@ghost-cli/web",
+      "dependencies": {
+        "@tanstack/react-query": "^5.62.7",
+        "@timescale/popsql-query-widget": "0.0.0-dev.156",
+        "framer-motion": "^12.0.0",
+        "react": "^19.0.0",
+        "react-dom": "^19.0.0",
+      },
+      "devDependencies": {
+        "@types/node": "^22.10.0",
+        "@types/react": "^19.0.0",
+        "@types/react-dom": "^19.0.0",
+        "@vitejs/plugin-react": "^5.0.0",
+        "autoprefixer": "^10.4.20",
+        "postcss": "^8.4.49",
+        "tailwindcss": "^3.4.17",
+        "typescript": "^5.7.2",
+        "vite": "^7.0.0",
+      },
+    },
+  },
+  "packages": {
+    "@alloc/quick-lru": ["@alloc/quick-lru@5.2.0", "", {}, "sha512-UrcABB+4bUrFABwbluTIBErXwvbsU/V7TZWfmbgJfbkwiBuziS9gxdODUyuiecfdGQ85jglMW6juS3+z5TsKLw=="],
+
+    "@babel/code-frame": ["@babel/code-frame@7.29.7", "", { "dependencies": { "@babel/helper-validator-identifier": "^7.29.7", "js-tokens": "^4.0.0", "picocolors": "^1.1.1" } }, "sha512-Aup7aUOfpbAUg2ROOJN6Iw5f9DMBlzu0mIkm/malLQFN/YQgO48wCj0Kxa3sEHJvPVFg7siR+qRInwXd2qhQKw=="],
+
+    "@babel/compat-data": ["@babel/compat-data@7.29.7", "", {}, "sha512-locTkQyKvwIEgBzVrn8693ebc97F2U8ZHjbXwDXJ5Fn2TCpNwTlKcaKLkdHop5c/icOFE7qt7Q9JC5hnKNa6Gg=="],
+
+    "@babel/core": ["@babel/core@7.29.7", "", { "dependencies": { "@babel/code-frame": "^7.29.7", "@babel/generator": "^7.29.7", "@babel/helper-compilation-targets": "^7.29.7", "@babel/helper-module-transforms": "^7.29.7", "@babel/helpers": "^7.29.7", "@babel/parser": "^7.29.7", "@babel/template": "^7.29.7", "@babel/traverse": "^7.29.7", "@babel/types": "^7.29.7", "@jridgewell/remapping": "^2.3.5", "convert-source-map": "^2.0.0", "debug": "^4.1.0", "gensync": "^1.0.0-beta.2", "json5": "^2.2.3", "semver": "^6.3.1" } }, "sha512-RgHBCvtjbOK2gXSNBNIkNoEc9qoVEtau3hj8gEqKQuL3HZAibKarWFEI3Lfm6EYKkLalOh8eSrj9b+ch9H/VBA=="],
+
+    "@babel/generator": ["@babel/generator@7.29.7", "", { "dependencies": { "@babel/parser": "^7.29.7", "@babel/types": "^7.29.7", "@jridgewell/gen-mapping": "^0.3.12", "@jridgewell/trace-mapping": "^0.3.28", "jsesc": "^3.0.2" } }, "sha512-DkXD5OJQaAQIdZ1bt3UZdEnHAn9Imd3IVBdX03UFe+ony9Ojw5pzr9YVKGDY1jt+Gcn/FnGkNf8r+Vj5NOJWtQ=="],
+
+    "@babel/helper-compilation-targets": ["@babel/helper-compilation-targets@7.29.7", "", { "dependencies": { "@babel/compat-data": "^7.29.7", "@babel/helper-validator-option": "^7.29.7", "browserslist": "^4.24.0", "lru-cache": "^5.1.1", "semver": "^6.3.1" } }, "sha512-wem6WaBj4NaVYVdNhLPPVacES6ZJ+KBBfSkTMD3YZxbP3rm3Di85tJU5ljaUNhaOynt+Aj0xruhYuzQBt8n71g=="],
+
+    "@babel/helper-globals": ["@babel/helper-globals@7.29.7", "", {}, "sha512-3nQVUAtvkKH9zahfWgw96Jc/uFOmjACE1kQz82E2lqWmHBgjzbNlsC22nuQTfahmWeQtTq5nQ/4Nnd2A1wj4zA=="],
+
+    "@babel/helper-module-imports": ["@babel/helper-module-imports@7.29.7", "", { "dependencies": { "@babel/traverse": "^7.29.7", "@babel/types": "^7.29.7" } }, "sha512-ejHwrQQYcm9xnTivShn2IDOlIzInN34AXskvq9QicvCtEzq1Vzclu/tKF8Jq1Cg8JG2GL6/EmjgsCT7lXepE3g=="],
+
+    "@babel/helper-module-transforms": ["@babel/helper-module-transforms@7.29.7", "", { "dependencies": { "@babel/helper-module-imports": "^7.29.7", "@babel/helper-validator-identifier": "^7.29.7", "@babel/traverse": "^7.29.7" }, "peerDependencies": { "@babel/core": "^7.0.0" } }, "sha512-UPUVSyXbOh627KiCIGQSgwWzGeBKLkaJ9PJEdrngIwMSzxLR4jS4+f1f1jb7VzBbg8nFLaYotvVPFCTqdrmTAg=="],
+
+    "@babel/helper-plugin-utils": ["@babel/helper-plugin-utils@7.29.7", "", {}, "sha512-G7sHYigPY17oO5SYWnfD/0MTBwVR781S/JI643e/JhUYgVgWE/61SoW3NH9KWUKyKq5LVh3npif99Wkt6j86Jw=="],
+
+    "@babel/helper-string-parser": ["@babel/helper-string-parser@7.29.7", "", {}, "sha512-Pb5ijPrZ89GDH8223L4UP8i6QApWxs04RbPQJTeWDV0/keR2E36MeKnyr6LYmUUvqRRI+Iv87SuF1W6ErINzYw=="],
+
+    "@babel/helper-validator-identifier": ["@babel/helper-validator-identifier@7.29.7", "", {}, "sha512-qehxGkRj55h/ff8EMaJ+cYhyaKlHIxqYDn682wQD7RNp9UujOQsHog2uS0r2vzr4pW+sXf90NeeayjcNaX3fFg=="],
+
+    "@babel/helper-validator-option": ["@babel/helper-validator-option@7.29.7", "", {}, "sha512-N9ZErrD+yW5geCDtBqnOoxmR8+tNKiGuxKlDpuJxfsqpa2dFcexaziGAE/qoHLiDDreVNMupxGmSoNlyvsA3gw=="],
+
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+
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+
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+    "readdirp": ["readdirp@3.6.0", "", { "dependencies": { "picomatch": "^2.2.1" } }, "sha512-hOS089on8RduqdbhvQ5Z37A0ESjsqz6qnRcffsMU3495FuTdqSm+7bhJ29JvIOsBDEEnan5DPu9t3To9VRlMzA=="],
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+    "resolve": ["resolve@1.22.12", "", { "dependencies": { "es-errors": "^1.3.0", "is-core-module": "^2.16.1", "path-parse": "^1.0.7", "supports-preserve-symlinks-flag": "^1.0.0" }, "bin": { "resolve": "bin/resolve" } }, "sha512-TyeJ1zif53BPfHootBGwPRYT1RUt6oGWsaQr8UyZW/eAm9bKoijtvruSDEmZHm92CwS9nj7/fWttqPCgzep8CA=="],
+
+    "reusify": ["reusify@1.1.0", "", {}, "sha512-g6QUff04oZpHs0eG5p83rFLhHeV00ug/Yf9nZM6fLeUrPguBTkTQOdpAWWspMh55TZfVQDPaN3NQJfbVRAxdIw=="],
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+    "rollup": ["rollup@4.60.4", "", { "dependencies": { "@types/estree": "1.0.8" }, "optionalDependencies": { "@rollup/rollup-android-arm-eabi": "4.60.4", "@rollup/rollup-android-arm64": "4.60.4", "@rollup/rollup-darwin-arm64": "4.60.4", "@rollup/rollup-darwin-x64": "4.60.4", "@rollup/rollup-freebsd-arm64": "4.60.4", "@rollup/rollup-freebsd-x64": "4.60.4", "@rollup/rollup-linux-arm-gnueabihf": "4.60.4", "@rollup/rollup-linux-arm-musleabihf": "4.60.4", "@rollup/rollup-linux-arm64-gnu": "4.60.4", "@rollup/rollup-linux-arm64-musl": "4.60.4", "@rollup/rollup-linux-loong64-gnu": "4.60.4", "@rollup/rollup-linux-loong64-musl": "4.60.4", "@rollup/rollup-linux-ppc64-gnu": "4.60.4", "@rollup/rollup-linux-ppc64-musl": "4.60.4", "@rollup/rollup-linux-riscv64-gnu": "4.60.4", "@rollup/rollup-linux-riscv64-musl": "4.60.4", "@rollup/rollup-linux-s390x-gnu": "4.60.4", "@rollup/rollup-linux-x64-gnu": "4.60.4", "@rollup/rollup-linux-x64-musl": "4.60.4", "@rollup/rollup-openbsd-x64": "4.60.4", "@rollup/rollup-openharmony-arm64": "4.60.4", "@rollup/rollup-win32-arm64-msvc": "4.60.4", "@rollup/rollup-win32-ia32-msvc": "4.60.4", "@rollup/rollup-win32-x64-gnu": "4.60.4", "@rollup/rollup-win32-x64-msvc": "4.60.4", "fsevents": "~2.3.2" }, "bin": { "rollup": "dist/bin/rollup" } }, "sha512-WHeFSbZYsPu3+bLoNRUuAO+wavNlocOPf3wSHTP7hcFKVnJeWsYlCDbr3mTS14FCizf9ccIxXA8sGL8zKeQN3g=="],
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+    "scheduler": ["scheduler@0.27.0", "", {}, "sha512-eNv+WrVbKu1f3vbYJT/xtiF5syA5HPIMtf9IgY/nKg0sWqzAUEvqY/xm7OcZc/qafLx/iO9FgOmeSAp4v5ti/Q=="],
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+    "semver": ["semver@6.3.1", "", { "bin": { "semver": "bin/semver.js" } }, "sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA=="],
+
+    "source-map-js": ["source-map-js@1.2.1", "", {}, "sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA=="],
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+    "sucrase": ["sucrase@3.35.1", "", { "dependencies": { "@jridgewell/gen-mapping": "^0.3.2", "commander": "^4.0.0", "lines-and-columns": "^1.1.6", "mz": "^2.7.0", "pirates": "^4.0.1", "tinyglobby": "^0.2.11", "ts-interface-checker": "^0.1.9" }, "bin": { "sucrase": "bin/sucrase", "sucrase-node": "bin/sucrase-node" } }, "sha512-DhuTmvZWux4H1UOnWMB3sk0sbaCVOoQZjv8u1rDoTV0HTdGem9hkAZtl4JZy8P2z4Bg0nT+YMeOFyVr4zcG5Tw=="],
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+    "supports-preserve-symlinks-flag": ["supports-preserve-symlinks-flag@1.0.0", "", {}, "sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w=="],
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+    "tailwindcss": ["tailwindcss@3.4.19", "", { "dependencies": { "@alloc/quick-lru": "^5.2.0", "arg": "^5.0.2", "chokidar": "^3.6.0", "didyoumean": "^1.2.2", "dlv": "^1.1.3", "fast-glob": "^3.3.2", "glob-parent": "^6.0.2", "is-glob": "^4.0.3", "jiti": "^1.21.7", "lilconfig": "^3.1.3", "micromatch": "^4.0.8", "normalize-path": "^3.0.0", "object-hash": "^3.0.0", "picocolors": "^1.1.1", "postcss": "^8.4.47", "postcss-import": "^15.1.0", "postcss-js": "^4.0.1", "postcss-load-config": "^4.0.2 || ^5.0 || ^6.0", "postcss-nested": "^6.2.0", "postcss-selector-parser": "^6.1.2", "resolve": "^1.22.8", "sucrase": "^3.35.0" }, "bin": { "tailwind": "lib/cli.js", "tailwindcss": "lib/cli.js" } }, "sha512-3ofp+LL8E+pK/JuPLPggVAIaEuhvIz4qNcf3nA1Xn2o/7fb7s/TYpHhwGDv1ZU3PkBluUVaF8PyCHcm48cKLWQ=="],
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+    "typescript": ["typescript@5.9.3", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw=="],
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+
+    "update-browserslist-db": ["update-browserslist-db@1.2.3", "", { "dependencies": { "escalade": "^3.2.0", "picocolors": "^1.1.1" }, "peerDependencies": { "browserslist": ">= 4.21.0" }, "bin": { "update-browserslist-db": "cli.js" } }, "sha512-Js0m9cx+qOgDxo0eMiFGEueWztz+d4+M3rGlmKPT+T4IS/jP4ylw3Nwpu6cpTTP8R1MAC1kF4VbdLt3ARf209w=="],
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+    "util-deprecate": ["util-deprecate@1.0.2", "", {}, "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw=="],
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+    "vite": ["vite@7.3.3", "", { "dependencies": { "esbuild": "^0.27.0", "fdir": "^6.5.0", "picomatch": "^4.0.3", "postcss": "^8.5.6", "rollup": "^4.43.0", "tinyglobby": "^0.2.15" }, "optionalDependencies": { "fsevents": "~2.3.3" }, "peerDependencies": { "@types/node": "^20.19.0 || >=22.12.0", "jiti": ">=1.21.0", "less": "^4.0.0", "lightningcss": "^1.21.0", "sass": "^1.70.0", "sass-embedded": "^1.70.0", "stylus": ">=0.54.8", "sugarss": "^5.0.0", "terser": "^5.16.0", "tsx": "^4.8.1", "yaml": "^2.4.2" }, "optionalPeers": ["@types/node", "jiti", "less", "lightningcss", "sass", "sass-embedded", "stylus", "sugarss", "terser", "tsx", "yaml"], "bin": { "vite": "bin/vite.js" } }, "sha512-/4XH147Ui7OGTjg3HbdWe5arnZQSbfuRzdr9Ec7TQi5I7R+ir0Rlc9GIvD4v0XZurELqA035KVXJXpR61xhiTA=="],
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+
+    "micromatch/picomatch": ["picomatch@2.3.2", "", {}, "sha512-V7+vQEJ06Z+c5tSye8S+nHUfI51xoXIXjHQ99cQtKUkQqqO1kO/KCJUfZXuB47h/YBlDhah2H3hdUGXn8ie0oA=="],
+
+    "readdirp/picomatch": ["picomatch@2.3.2", "", {}, "sha512-V7+vQEJ06Z+c5tSye8S+nHUfI51xoXIXjHQ99cQtKUkQqqO1kO/KCJUfZXuB47h/YBlDhah2H3hdUGXn8ie0oA=="],
+  }
+}
diff --git a/web/package.json b/web/package.json
index 0cef94e..dfc9e02 100644
--- a/web/package.json
+++ b/web/package.json
@@ -11,7 +11,7 @@
   },
   "dependencies": {
     "@tanstack/react-query": "^5.62.7",
-    "@timescale/popsql-query-widget": "^0.0.1",
+    "@timescale/popsql-query-widget": "0.0.0-dev.156",
     "framer-motion": "^12.0.0",
     "react": "^19.0.0",
     "react-dom": "^19.0.0"

From 384b437bb15d14f1efaa65e87f62279e7a1dd75e Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 11:22:33 -0400
Subject: [PATCH 04/39] Wire the popsql query widget into ghost serve
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Step 2 of the ghost serve plan: in-process query execution that matches
the popsql-query-widget wire contract, no proxy to ghost-api or the
savannah gateway needed.

What is here:

internal/serve/dbtypes/
  Ported verbatim from popsql-query/internal/types/. Custom scan
  receivers that preserve database-side formatting and special values
  (NaN, +/-Infinity, JSON, bytea hex, plain DATE/TIMESTAMP). GUID
  (MSSQL-only) is dropped.

internal/serve/dbdriver/
  Postgres-only port of popsql-query/internal/driver/. Provides:
  - Driver/baseDriver interfaces and a Postgres adapter backed by
    pgx/v5/stdlib so we get OID-aware ColumnType.ScanType().
  - cancelContext, which wires pgConn.CancelRequest into the parent
    context so query cancellation flows through pg_cancel_backend.
  - NormalizedError shape matching the widget's failure type.
  Drops the SSH tunnel, SSL custom-config, and multi-driver registry
  (ghost only targets Timescale Postgres). Uses SimpleProtocol exec
  mode so user-typed multi-statement SQL with comments works the same
  way ghost sql does.

internal/serve/arrow.go
  Ported from popsql-query/internal/writer/arrow.go. RecordBuilder
  wraps array.RecordBuilder, appends the synthetic
  __popsql_row_num__ column, and embeds the original column
  descriptors in the schema metadata under __popsql_columns__ (both
  contracts the widget's table renderer assumes).

internal/serve/wire.go
  Request/response types matching what @popsql/query-client's
  TimescaleQueryClient sends. The widget puts the SQL in a
  `statements` array (not the legacy `query` field) so we read both.

internal/serve/store.go
  In-memory run + session registries.

internal/serve/connect.go
  Resolves database via ghost-api, runs CheckReady, fetches the
  tsdbadmin password (with the same actionable error if missing), and
  opens a pgx driver against the resulting DSN.

internal/serve/execute.go
  POST /api/executeQuery (one-shot) and POST /api/executeSessionQuery.
  Streams a single NDJSON columns line, blocks on Run.done while
  arrowResults consumes the rows, then emits the success/error
  terminator. Client disconnect cancels the underlying PG query.

internal/serve/arrow_results.go
  POST /api/arrowResults. Streams an Apache Arrow IPC record batch per
  1024 rows, then closes Run.done so executeQuery can finalize.

internal/serve/session.go
  POST /api/createSession / sessionEvents (long-lived NDJSON status
  stream) / closeSession. The widget's session manager retries
  sessionEvents up to 15 times on disconnect, so transient hiccups
  are handled for free.

internal/serve/cancel.go
  POST /api/cancelRun -> pgConn.CancelRequest.

web/src/components/QueryPanel.tsx
  Renders the unmodified popsql QueryWidget against the local server.
  sessionKey is derived from the database ID so changing the picker
  invalidates the session and the underlying PG connection.

web/vite.config.ts
  - copyPopsqlQueryWidgetAssets plugin (ported from web-cloud) emits
    the duckdb / monaco worker + wasm sidecars that the widget loads
    via `new URL(<variable>, import.meta.url)` (Vite's static
    analysis misses them).
  - vite-plugin-node-polyfills shims Buffer / crypto / process /
    stream — same list web-cloud uses with this widget.
  - optimizeDeps.exclude on the widget so its workers resolve their
    sibling chunks.

web/package.json
  Pin React 18.3 (widget calls findDOMNode which is gone in React 19),
  add @timescale/popsql-query-widget@0.0.0-dev.156 and
  vite-plugin-node-polyfills.

End-to-end smoke-tested against a real Timescale Postgres database:
- SELECT 1; renders 1 row in the result table.
- SELECT 1::int, 'hello'::text, '2024-01-01'::date,
  '2024-01-01 12:00:00+00'::timestamptz, 3.14::numeric,
  '{"k":"v"}'::jsonb renders all six columns with the right types.
- Sessions: changing the DB picker invalidates the session and a
  fresh connection opens transparently.
---
 go.mod                              |  10 +-
 go.sum                              |  30 ++-
 internal/serve/arrow.go             | 319 ++++++++++++++++++++++++++++
 internal/serve/arrow_results.go     |  99 +++++++++
 internal/serve/cancel.go            |  28 +++
 internal/serve/connect.go           |  89 ++++++++
 internal/serve/dbdriver/api.go      |  72 +++++++
 internal/serve/dbdriver/cancel.go   |  44 ++++
 internal/serve/dbdriver/driver.go   | 198 +++++++++++++++++
 internal/serve/dbdriver/postgres.go | 175 +++++++++++++++
 internal/serve/dbdriver/rows.go     | 174 +++++++++++++++
 internal/serve/dbtypes/binary.go    |  22 ++
 internal/serve/dbtypes/date.go      |  99 +++++++++
 internal/serve/dbtypes/json.go      |  37 ++++
 internal/serve/dbtypes/numeric.go   |  18 ++
 internal/serve/dbtypes/types.go     |  90 ++++++++
 internal/serve/execute.go           | 178 ++++++++++++++++
 internal/serve/server.go            |  35 ++-
 internal/serve/session.go           | 123 +++++++++++
 internal/serve/store.go             | 145 +++++++++++++
 internal/serve/wire.go              | 112 ++++++++++
 web/bun.lock                        | 291 ++++++++++++++++++++++++-
 web/package.json                    |  11 +-
 web/src/app.tsx                     |  23 +-
 web/src/components/QueryPanel.tsx   |  51 +++++
 web/vite.config.ts                  |  45 +++-
 26 files changed, 2475 insertions(+), 43 deletions(-)
 create mode 100644 internal/serve/arrow.go
 create mode 100644 internal/serve/arrow_results.go
 create mode 100644 internal/serve/cancel.go
 create mode 100644 internal/serve/connect.go
 create mode 100644 internal/serve/dbdriver/api.go
 create mode 100644 internal/serve/dbdriver/cancel.go
 create mode 100644 internal/serve/dbdriver/driver.go
 create mode 100644 internal/serve/dbdriver/postgres.go
 create mode 100644 internal/serve/dbdriver/rows.go
 create mode 100644 internal/serve/dbtypes/binary.go
 create mode 100644 internal/serve/dbtypes/date.go
 create mode 100644 internal/serve/dbtypes/json.go
 create mode 100644 internal/serve/dbtypes/numeric.go
 create mode 100644 internal/serve/dbtypes/types.go
 create mode 100644 internal/serve/execute.go
 create mode 100644 internal/serve/session.go
 create mode 100644 internal/serve/store.go
 create mode 100644 internal/serve/wire.go
 create mode 100644 web/src/components/QueryPanel.tsx

diff --git a/go.mod b/go.mod
index c0e50df..b515798 100644
--- a/go.mod
+++ b/go.mod
@@ -12,9 +12,11 @@ require (
 	charm.land/bubbles/v2 v2.1.0
 	charm.land/bubbletea/v2 v2.0.6
 	charm.land/lipgloss/v2 v2.0.3
+	github.com/apache/arrow-go/v18 v18.6.0
 	github.com/charmbracelet/colorprofile v0.4.3
 	github.com/google/go-cmp v0.7.0
 	github.com/google/jsonschema-go v0.4.2
+	github.com/google/uuid v1.6.0
 	github.com/jackc/pgpassfile v1.0.0
 	github.com/jackc/pgx/v5 v5.9.2
 	github.com/modelcontextprotocol/go-sdk v1.5.0
@@ -56,10 +58,13 @@ require (
 	github.com/go-viper/mapstructure/v2 v2.5.0 // indirect
 	github.com/goccy/go-json v0.10.6 // indirect
 	github.com/godbus/dbus/v5 v5.2.2 // indirect
-	github.com/google/uuid v1.6.0 // indirect
+	github.com/google/flatbuffers v25.12.19+incompatible // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	github.com/jackc/puddle/v2 v2.2.2 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
+	github.com/klauspost/compress v1.18.5 // indirect
+	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
 	github.com/lucasb-eyer/go-colorful v1.4.0 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
@@ -75,6 +80,7 @@ require (
 	github.com/olekukonko/ll v0.1.8 // indirect
 	github.com/pelletier/go-toml/v2 v2.3.0 // indirect
 	github.com/perimeterx/marshmallow v1.1.5 // indirect
+	github.com/pierrec/lz4/v4 v4.1.26 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/sagikazarmark/locafero v0.12.0 // indirect
@@ -89,7 +95,9 @@ require (
 	github.com/woodsbury/decimal128 v1.3.0 // indirect
 	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
 	github.com/yosida95/uritemplate/v3 v3.0.2 // indirect
+	github.com/zeebo/xxh3 v1.1.0 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	golang.org/x/exp v0.0.0-20260112195511-716be5621a96 // indirect
 	golang.org/x/exp/typeparams v0.0.0-20231108232855-2478ac86f678 // indirect
 	golang.org/x/text v0.36.0 // indirect
 	golang.org/x/tools v0.43.0 // indirect
diff --git a/go.sum b/go.sum
index 5235ebb..929fed0 100644
--- a/go.sum
+++ b/go.sum
@@ -7,6 +7,12 @@ charm.land/lipgloss/v2 v2.0.3/go.mod h1:7myLU9iG/3xluAWzpY/fSxYYHCgoKTie7laxk6AT
 github.com/BurntSushi/toml v1.4.1-0.20240526193622-a339e1f7089c h1:pxW6RcqyfI9/kWtOwnv/G+AzdKuy2ZrqINhenH4HyNs=
 github.com/BurntSushi/toml v1.4.1-0.20240526193622-a339e1f7089c/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/RaveNoX/go-jsoncommentstrip v1.0.0/go.mod h1:78ihd09MekBnJnxpICcwzCMzGrKSKYe4AqU6PDYYpjk=
+github.com/andybalholm/brotli v1.2.1 h1:R+f5xP285VArJDRgowrfb9DqL18yVK0gKAW/F+eTWro=
+github.com/andybalholm/brotli v1.2.1/go.mod h1:rzTDkvFWvIrjDXZHkuS16NPggd91W3kUSvPlQ1pLaKY=
+github.com/apache/arrow-go/v18 v18.6.0 h1:GX/Jyd3R7mCLiECAwY9FWbbaYblie2WXBSz4Sw8fNpM=
+github.com/apache/arrow-go/v18 v18.6.0/go.mod h1:gm3MiPpY82fLYK5VKPB3WoJbsiLVDfT7flD5/vHReKw=
+github.com/apache/thrift v0.22.0 h1:r7mTJdj51TMDe6RtcmNdQxgn9XcyfGDOzegMDRg47uc=
+github.com/apache/thrift v0.22.0/go.mod h1:1e7J/O1Ae6ZQMTYdy9xa3w9k+XHWPfRvdPyJeynQ+/g=
 github.com/apapsch/go-jsonmerge/v2 v2.0.0 h1:axGnT1gRIfimI7gJifB699GoE/oq+F2MU7Dml6nw9rQ=
 github.com/apapsch/go-jsonmerge/v2 v2.0.0/go.mod h1:lvDnEdqiQrp0O42VQGgmlKpxL1AP2+08jFMw88y4klk=
 github.com/aymanbagabas/go-udiff v0.4.1 h1:OEIrQ8maEeDBXQDoGCbbTTXYJMYRCRO1fnodZ12Gv5o=
@@ -41,8 +47,9 @@ github.com/cpuguy83/go-md2man/v2 v2.0.7/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6N
 github.com/danieljoos/wincred v1.2.3 h1:v7dZC2x32Ut3nEfRH+vhoZGvN72+dQ/snVXo/vMFLdQ=
 github.com/danieljoos/wincred v1.2.3/go.mod h1:6qqX0WNrS4RzPZ1tnroDzq9kY3fu1KwE7MRLQK4X0bs=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dprotaso/go-yit v0.0.0-20191028211022-135eb7262960/go.mod h1:9HQzr9D/0PGwMEbC3d5AB7oi67+h4TsQqItC1GVYG58=
 github.com/dprotaso/go-yit v0.0.0-20220510233725-9ba8df137936 h1:PRxIJD8XjimM5aTknUK9w6DHLDox2r2M3DI4i2pnd3w=
 github.com/dprotaso/go-yit v0.0.0-20220510233725-9ba8df137936/go.mod h1:ttYvX5qlB+mlV1okblJqcSMtR4c52UKxDiX9GRBS8+Q=
@@ -80,6 +87,8 @@ github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvq
 github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
+github.com/google/flatbuffers v25.12.19+incompatible h1:haMV2JRRJCe1998HeW/p0X9UaMTK6SDo0ffLn2+DbLs=
+github.com/google/flatbuffers v25.12.19+incompatible/go.mod h1:1AeVuKshWv4vARoZatz6mlQ0JxURH0Kv5+zNeJKJCa8=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
@@ -106,6 +115,10 @@ github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFr
 github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
 github.com/juju/gnuflag v0.0.0-20171113085948-2ce1bb71843d/go.mod h1:2PavIy+JPciBPrBUjwbNvtwB6RQlve+hkpll6QSNmOE=
+github.com/klauspost/compress v1.18.5 h1:/h1gH5Ce+VWNLSWqPzOVn6XBO+vJbCNGvjoaGBFW2IE=
+github.com/klauspost/compress v1.18.5/go.mod h1:cwPg85FWrGar70rWktvGQj8/hthj3wpl0PGDogxkrSQ=
+github.com/klauspost/cpuid/v2 v2.3.0 h1:S4CRMLnYUhGeDFDqkGriYKdfoFlDnMtqTiI/sFzhA9Y=
+github.com/klauspost/cpuid/v2 v2.3.0/go.mod h1:hqwkgyIinND0mEev00jJYCxPNVRVXFQeu1XKlok6oO0=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
@@ -164,8 +177,11 @@ github.com/pelletier/go-toml/v2 v2.3.0 h1:k59bC/lIZREW0/iVaQR8nDHxVq8OVlIzYCOJf4
 github.com/pelletier/go-toml/v2 v2.3.0/go.mod h1:2gIqNv+qfxSVS7cM2xJQKtLSTLUE9V8t9Stt+h56mCY=
 github.com/perimeterx/marshmallow v1.1.5 h1:a2LALqQ1BlHM8PZblsDdidgv1mWi1DgC2UmX50IvK2s=
 github.com/perimeterx/marshmallow v1.1.5/go.mod h1:dsXbUu8CRzfYP5a87xpp0xq9S3u0Vchtcl8we9tYaXw=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pierrec/lz4/v4 v4.1.26 h1:GrpZw1gZttORinvzBdXPUXATeqlJjqUG/D87TKMnhjY=
+github.com/pierrec/lz4/v4 v4.1.26/go.mod h1:EoQMVJgeeEOMsCqCzqFm2O0cJvljX2nGZjcRIPL34O4=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
+github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
 github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/rogpeppe/go-internal v1.12.0 h1:exVL4IDcn6na9z1rAb56Vxr+CgyK3nn3O+epU5NdKM8=
@@ -222,6 +238,10 @@ github.com/yosida95/uritemplate/v3 v3.0.2/go.mod h1:ILOh0sOhIJR3+L/8afwt/kE++YT0
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/zalando/go-keyring v0.2.8 h1:6sD/Ucpl7jNq10rM2pgqTs0sZ9V3qMrqfIIy5YPccHs=
 github.com/zalando/go-keyring v0.2.8/go.mod h1:tsMo+VpRq5NGyKfxoBVjCuMrG47yj8cmakZDO5QGii0=
+github.com/zeebo/assert v1.3.0 h1:g7C04CbJuIDKNPFHmsk4hwZDO5O+kntRxzaUoNXj+IQ=
+github.com/zeebo/assert v1.3.0/go.mod h1:Pq9JiuJQpG8JLJdtkwrJESF0Foym2/D9XMU5ciN/wJ0=
+github.com/zeebo/xxh3 v1.1.0 h1:s7DLGDK45Dyfg7++yxI0khrfwq9661w9EN78eP/UZVs=
+github.com/zeebo/xxh3 v1.1.0/go.mod h1:IisAie1LELR4xhVinxWS5+zf1lA4p0MW4T+w+W07F5s=
 go.uber.org/mock v0.6.0 h1:hyF9dfmbgIX5EfOdasqLsWD6xqpNZlXblLB/Dbnwv3Y=
 go.uber.org/mock v0.6.0/go.mod h1:KiVJ4BqZJaMj4svdfmHM0AUx4NJYO8ZNpPnZn1Z+BBU=
 go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
@@ -229,8 +249,8 @@ go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/exp v0.0.0-20231110203233-9a3e6036ecaa h1:FRnLl4eNAQl8hwxVVC17teOw8kdjVDVAiFMtgUdTSRQ=
-golang.org/x/exp v0.0.0-20231110203233-9a3e6036ecaa/go.mod h1:zk2irFbV9DP96SEBUUAy67IdHUaZuSnrz1n472HUCLE=
+golang.org/x/exp v0.0.0-20260112195511-716be5621a96 h1:Z/6YuSHTLOHfNFdb8zVZomZr7cqNgTJvA8+Qz75D8gU=
+golang.org/x/exp v0.0.0-20260112195511-716be5621a96/go.mod h1:nzimsREAkjBCIEFtHiYkrJyT+2uy9YZJB7H1k68CXZU=
 golang.org/x/exp/typeparams v0.0.0-20231108232855-2478ac86f678 h1:1P7xPZEwZMoBoz0Yze5Nx2/4pxj6nw9ZqHWXqP0iRgQ=
 golang.org/x/exp/typeparams v0.0.0-20231108232855-2478ac86f678/go.mod h1:AbB0pIl9nAr9wVwH+Z2ZpaocVmF5I4GyWCDIsVjR0bk=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
@@ -289,6 +309,8 @@ golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8T
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gonum.org/v1/gonum v0.17.0 h1:VbpOemQlsSMrYmn7T2OUvQ4dqxQXU+ouZFQsZOx50z4=
+gonum.org/v1/gonum v0.17.0/go.mod h1:El3tOrEuMpv2UdMrbNlKEh9vd86bmQ6vqIcDwxEOc1E=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
diff --git a/internal/serve/arrow.go b/internal/serve/arrow.go
new file mode 100644
index 0000000..e305a1f
--- /dev/null
+++ b/internal/serve/arrow.go
@@ -0,0 +1,319 @@
+package serve
+
+import (
+	"encoding/json"
+	"fmt"
+	"reflect"
+	"time"
+
+	"github.com/apache/arrow-go/v18/arrow"
+	"github.com/apache/arrow-go/v18/arrow/array"
+	"github.com/apache/arrow-go/v18/arrow/memory"
+
+	"github.com/timescale/ghost/internal/serve/dbdriver"
+	"github.com/timescale/ghost/internal/serve/dbtypes"
+)
+
+// Ported from github.com/timescale/popsql-query/internal/writer/arrow.go.
+// Schema metadata + the synthetic __popsql_row_num__ column are preserved
+// because the widget's table renderer depends on both.
+
+const columnsMetadataKey = "__popsql_columns__"
+
+var (
+	rowNumField = arrow.Field{
+		Name: "__popsql_row_num__",
+		Type: arrow.PrimitiveTypes.Int64,
+	}
+	rowNumBuilderFn = basicBuilderFn[*array.Int64Builder, int64]
+)
+
+// arrowBuilder wraps an array.Builder and exposes AppendValue, which accepts
+// values of type 'any' and routes them through a column-specific builderFn.
+type arrowBuilder interface {
+	array.Builder
+	AppendValue(val any) error
+}
+
+type builderFn func(builder array.Builder, val any) error
+
+type columnBuilder struct {
+	array.Builder
+	fn builderFn
+}
+
+func (c *columnBuilder) AppendValue(val any) error { return c.fn(c.Builder, val) }
+
+// RecordBuilder is a thin wrapper around array.RecordBuilder that appends a
+// synthetic row-number column and exposes AppendRow for []any values.
+type RecordBuilder struct {
+	*array.RecordBuilder
+	fields         []arrowBuilder
+	recordRowCount int64
+	totalRowCount  int64
+}
+
+// NewRecordBuilder builds an Arrow schema from the supplied columns and
+// returns a RecordBuilder ready to append rows.
+func NewRecordBuilder(columns dbdriver.Columns) (*RecordBuilder, error) {
+	schema, builderFns, err := arrowSchema(columns)
+	if err != nil {
+		return nil, err
+	}
+
+	rb := array.NewRecordBuilder(memory.DefaultAllocator, schema)
+	fields := make([]arrowBuilder, schema.NumFields())
+	for i, field := range rb.Fields() {
+		fields[i] = &columnBuilder{Builder: field, fn: builderFns[i]}
+	}
+	return &RecordBuilder{RecordBuilder: rb, fields: fields}, nil
+}
+
+// AppendRow appends a single row + populates the synthetic row-num column.
+// The row must contain one entry per column in the same order as the
+// dbdriver.Columns passed to NewRecordBuilder.
+func (rb *RecordBuilder) AppendRow(row []any) error {
+	for i, val := range row {
+		if err := rb.fields[i].AppendValue(val); err != nil {
+			return err
+		}
+	}
+	if err := rb.fields[len(row)].AppendValue(rb.totalRowCount); err != nil {
+		return err
+	}
+	rb.recordRowCount++
+	rb.totalRowCount++
+	return nil
+}
+
+func (rb *RecordBuilder) RecordRowCount() int64 { return rb.recordRowCount }
+func (rb *RecordBuilder) TotalRowCount() int64  { return rb.totalRowCount }
+
+// NewRecordBatch finalizes the in-progress record and resets the row counter.
+func (rb *RecordBuilder) NewRecordBatch() arrow.RecordBatch {
+	rb.recordRowCount = 0
+	return rb.RecordBuilder.NewRecordBatch()
+}
+
+func arrowSchema(columns dbdriver.Columns) (*arrow.Schema, []builderFn, error) {
+	fields := make([]arrow.Field, len(columns)+1)
+	builderFns := make([]builderFn, len(columns)+1)
+	for i, column := range columns {
+		arrowType, builderFn := arrowType(column)
+		fields[i] = arrow.Field{
+			Name:     column.Name,
+			Type:     arrowType,
+			Nullable: true,
+		}
+		builderFns[i] = builderFn
+	}
+	fields[len(columns)] = rowNumField
+	builderFns[len(columns)] = rowNumBuilderFn
+
+	columnJSON, err := json.Marshal(columns)
+	if err != nil {
+		return nil, nil, fmt.Errorf("marshalling columns to JSON: %w", err)
+	}
+	metadata := arrow.NewMetadata(
+		[]string{columnsMetadataKey},
+		[]string{string(columnJSON)},
+	)
+	return arrow.NewSchema(fields, &metadata), builderFns, nil
+}
+
+var (
+	boolBuilderFn        = basicBuilderFn[*array.BooleanBuilder, bool]
+	float32BuilderFn     = basicBuilderFn[*array.Float32Builder, float32]
+	float64BuilderFn     = basicBuilderFn[*array.Float64Builder, float64]
+	intBuilderFn         = convertBuilderFn[*array.Int64Builder](castToInt64[int])
+	int8BuilderFn        = basicBuilderFn[*array.Int8Builder, int8]
+	int16BuilderFn       = basicBuilderFn[*array.Int16Builder, int16]
+	int32BuilderFn       = basicBuilderFn[*array.Int32Builder, int32]
+	int64BuilderFn       = basicBuilderFn[*array.Int64Builder, int64]
+	uintBuilderFn        = convertBuilderFn[*array.Uint64Builder](castToUint64[uint])
+	uint8BuilderFn       = basicBuilderFn[*array.Uint8Builder, uint8]
+	uint16BuilderFn      = basicBuilderFn[*array.Uint16Builder, uint16]
+	uint32BuilderFn      = basicBuilderFn[*array.Uint32Builder, uint32]
+	uint64BuilderFn      = basicBuilderFn[*array.Uint64Builder, uint64]
+	stringBuilderFn      = basicBuilderFn[*array.StringBuilder, string]
+	binaryBuilderFn      = basicBuilderFn[*array.BinaryBuilder, []byte]
+	timeBuilderFn        = convertBuilderFn[*array.StringBuilder](timeToStr)
+	dateBuilderFn        = convertBuilderFn[*array.StringBuilder](castToStr[dbtypes.Date])
+	clockTimeBuilderFn   = convertBuilderFn[*array.StringBuilder](castToStr[dbtypes.ClockTime])
+	clockTimeTZBuilderFn = convertBuilderFn[*array.StringBuilder](castToStr[dbtypes.ClockTimeTZ])
+	dateTimeBuilderFn    = convertBuilderFn[*array.StringBuilder](castToStr[dbtypes.DateTime])
+	timestampBuilderFn   = convertBuilderFn[*array.StringBuilder](castToStr[dbtypes.Timestamp])
+	numericBuilderFn     = convertBuilderFn[*array.StringBuilder](castToStr[dbtypes.Numeric])
+	jsonBuilderFn        = convertBuilderFn[*array.StringBuilder](castToStr[dbtypes.JSON])
+	binaryStrBuilderFn   = convertBuilderFn[*array.StringBuilder](castToStr[dbtypes.Binary])
+)
+
+func arrowType(column dbdriver.Column) (arrow.DataType, builderFn) {
+	switch column.ScanType {
+	case dbtypes.BoolType, dbtypes.BoolPtrType:
+		return arrow.FixedWidthTypes.Boolean, boolBuilderFn
+	case dbtypes.Float32Type, dbtypes.Float32PtrType:
+		return arrow.PrimitiveTypes.Float32, float32BuilderFn
+	case dbtypes.Float64Type, dbtypes.Float64PtrType:
+		return arrow.PrimitiveTypes.Float64, float64BuilderFn
+	case dbtypes.IntType, dbtypes.IntPtrType:
+		return arrow.PrimitiveTypes.Int64, intBuilderFn
+	case dbtypes.Int8Type, dbtypes.Int8PtrType:
+		return arrow.PrimitiveTypes.Int8, int8BuilderFn
+	case dbtypes.Int16Type, dbtypes.Int16PtrType:
+		return arrow.PrimitiveTypes.Int16, int16BuilderFn
+	case dbtypes.Int32Type, dbtypes.Int32PtrType:
+		return arrow.PrimitiveTypes.Int32, int32BuilderFn
+	case dbtypes.Int64Type, dbtypes.Int64PtrType:
+		return arrow.PrimitiveTypes.Int64, int64BuilderFn
+	case dbtypes.UintType, dbtypes.UintPtrType:
+		return arrow.PrimitiveTypes.Uint64, uintBuilderFn
+	case dbtypes.Uint8Type, dbtypes.Uint8PtrType:
+		return arrow.PrimitiveTypes.Uint8, uint8BuilderFn
+	case dbtypes.Uint16Type, dbtypes.Uint16PtrType:
+		return arrow.PrimitiveTypes.Uint16, uint16BuilderFn
+	case dbtypes.Uint32Type, dbtypes.Uint32PtrType:
+		return arrow.PrimitiveTypes.Uint32, uint32BuilderFn
+	case dbtypes.Uint64Type, dbtypes.Uint64PtrType:
+		return arrow.PrimitiveTypes.Uint64, uint64BuilderFn
+	case dbtypes.StringType, dbtypes.StringPtrType:
+		return arrow.BinaryTypes.String, stringBuilderFn
+	case dbtypes.BytesType, dbtypes.BytesPtrType:
+		return arrow.BinaryTypes.Binary, binaryBuilderFn
+	case dbtypes.TimeType, dbtypes.TimePtrType:
+		return arrow.BinaryTypes.String, timeBuilderFn
+	case dbtypes.DateType, dbtypes.DatePtrType:
+		return arrow.BinaryTypes.String, dateBuilderFn
+	case dbtypes.ClockTimeType, dbtypes.ClockTimePtrType:
+		return arrow.BinaryTypes.String, clockTimeBuilderFn
+	case dbtypes.ClockTimeTZType, dbtypes.ClockTimeTZPtrType:
+		return arrow.BinaryTypes.String, clockTimeTZBuilderFn
+	case dbtypes.DateTimeType, dbtypes.DateTimePtrType:
+		return arrow.BinaryTypes.String, dateTimeBuilderFn
+	case dbtypes.TimestampType, dbtypes.TimestampPtrType:
+		return arrow.BinaryTypes.String, timestampBuilderFn
+	case dbtypes.NumericType, dbtypes.NumericPtrType:
+		return arrow.BinaryTypes.String, numericBuilderFn
+	case dbtypes.JSONType, dbtypes.JSONPtrType:
+		return arrow.BinaryTypes.String, jsonBuilderFn
+	case dbtypes.BinaryType, dbtypes.BinaryPtrType:
+		return arrow.BinaryTypes.String, binaryStrBuilderFn
+	}
+	return arrow.BinaryTypes.String, unknownBuilderFn
+}
+
+type arrowAppender[T any] interface {
+	Append(value T)
+	AppendNull()
+}
+
+func basicBuilderFn[A arrowAppender[T], T any](builder array.Builder, value any) error {
+	b := builder.(A)
+	switch val := (value).(type) {
+	case nil:
+		b.AppendNull()
+	case T:
+		b.Append(val)
+	case *T:
+		if val == nil {
+			b.AppendNull()
+		} else {
+			b.Append(*val)
+		}
+	default:
+		return fmt.Errorf("arrow: cannot append %T as %T", value, *new(T))
+	}
+	return nil
+}
+
+func convertBuilderFn[A arrowAppender[T], V any, T any](convert func(V) T) builderFn {
+	return func(builder array.Builder, value any) error {
+		b := builder.(A)
+		switch val := (value).(type) {
+		case nil:
+			builder.AppendNull()
+		case V:
+			b.Append(convert(val))
+		case *V:
+			if val == nil {
+				builder.AppendNull()
+			} else {
+				b.Append(convert(*val))
+			}
+		default:
+			return fmt.Errorf("arrow: cannot append %T as %T", value, *new(T))
+		}
+		return nil
+	}
+}
+
+func timeToStr(value time.Time) string { return value.Format(time.RFC3339Nano) }
+
+type stringish interface{ ~string | ~[]byte }
+
+func castToStr[T stringish](value T) string { return string(value) }
+
+type int64ish interface{ ~int | ~int8 | ~int16 | ~int32 | ~int64 }
+
+func castToInt64[T int64ish](value T) int64 { return int64(value) }
+
+type uint64ish interface{ ~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 }
+
+func castToUint64[T uint64ish](value T) uint64 { return uint64(value) }
+
+func unknownBuilderFn(builder array.Builder, value any) error {
+	b := builder.(*array.StringBuilder)
+	switch val := value.(type) {
+	case nil:
+		b.AppendNull()
+	case string:
+		b.Append(val)
+	case *string:
+		if val == nil {
+			b.AppendNull()
+		} else {
+			b.Append(*val)
+		}
+	case []byte:
+		if val == nil {
+			b.AppendNull()
+		} else {
+			b.Append(string(val))
+		}
+	case *[]byte:
+		if val == nil || *val == nil {
+			b.AppendNull()
+		} else {
+			b.Append(string(*val))
+		}
+	case *any:
+		if val == nil {
+			b.AppendNull()
+		} else {
+			return unknownBuilderFn(builder, *val)
+		}
+	default:
+		if shouldMarshalJSON(reflect.TypeOf(val)) {
+			if out, err := json.Marshal(val); err == nil {
+				b.Append(string(out))
+				return nil
+			}
+		}
+		b.Append(fmt.Sprint(val))
+	}
+	return nil
+}
+
+// shouldMarshalJSON returns true for compound types (arrays, slices, maps,
+// structs) that aren't sql.Scanner-compliant. Most non-Postgres drivers don't
+// hit this in our use case, but it's preserved for parity with popsql-query.
+func shouldMarshalJSON(t reflect.Type) bool {
+	switch t.Kind() {
+	case reflect.Pointer:
+		return shouldMarshalJSON(t.Elem())
+	case reflect.Array, reflect.Slice, reflect.Map, reflect.Struct:
+		return true
+	default:
+		return false
+	}
+}
diff --git a/internal/serve/arrow_results.go b/internal/serve/arrow_results.go
new file mode 100644
index 0000000..455850b
--- /dev/null
+++ b/internal/serve/arrow_results.go
@@ -0,0 +1,99 @@
+package serve
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/apache/arrow-go/v18/arrow/ipc"
+
+	"github.com/timescale/ghost/internal/serve/dbdriver"
+)
+
+const arrowBatchRows = 1024
+
+// handleArrowResults serves POST /api/arrowResults. The widget fires this
+// immediately after seeing the executeQuery columns line and expects a raw
+// Arrow IPC stream of rows. We iterate the run's rows in-place, build
+// record batches, and stream them out; when iteration finishes we signal
+// Run.done so the executeQuery handler can emit its terminator.
+func (s *Server) handleArrowResults(w http.ResponseWriter, r *http.Request) {
+	var req arrowResultsRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	run := s.runs.get(req.RunID)
+	if run == nil {
+		http.NotFound(w, r)
+		return
+	}
+	<-run.ready
+
+	rb, err := NewRecordBuilder(run.columns)
+	if err != nil {
+		http.Error(w, "arrow schema: "+err.Error(), http.StatusInternalServerError)
+		run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "ghost"})
+		run.closeDone()
+		return
+	}
+	defer rb.Release()
+
+	w.Header().Set("Content-Type", "application/vnd.apache.arrow.stream")
+	w.Header().Set("Cache-Control", "no-store")
+
+	ipcWriter := ipc.NewWriter(w, ipc.WithSchema(rb.Schema()))
+	defer ipcWriter.Close()
+
+	targets := run.columns.ScanTargets()
+	for run.rows.Next() {
+		if err := r.Context().Err(); err != nil {
+			run.setError(&dbdriver.NormalizedError{Message: "request canceled", Source: "ghost", Cancel: true})
+			break
+		}
+		if err := run.rows.Scan(targets...); err != nil {
+			run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "ghost"})
+			break
+		}
+		if err := rb.AppendRow(targets.Values()); err != nil {
+			run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "ghost"})
+			break
+		}
+		if rb.RecordRowCount() >= arrowBatchRows {
+			if err := flushBatch(ipcWriter, rb, w); err != nil {
+				run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "ghost"})
+				break
+			}
+		}
+	}
+	if rb.RecordRowCount() > 0 {
+		if err := flushBatch(ipcWriter, rb, w); err != nil && run.err == nil {
+			run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "ghost"})
+		}
+	}
+
+	if err := run.rows.Err(); err != nil && run.err == nil {
+		// Defer to the driver's normalizer so PG errors carry code/hint/etc.
+		if run.driver != nil {
+			run.setError(run.driver.NormalizeError(run.queryCtx, err))
+		} else {
+			run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "postgres"})
+		}
+	}
+
+	run.rowCount = rb.TotalRowCount()
+	if rowsAffected, _ := run.rows.RowsAffected(r.Context()); rowsAffected != nil {
+		run.rowsAffected = rowsAffected
+	}
+	run.closeDone()
+}
+
+func flushBatch(ipcWriter *ipc.Writer, rb *RecordBuilder, w http.ResponseWriter) error {
+	batch := rb.NewRecordBatch()
+	defer batch.Release()
+	if err := ipcWriter.Write(batch); err != nil {
+		return err
+	}
+	flushWriter(w)
+	return nil
+}
diff --git a/internal/serve/cancel.go b/internal/serve/cancel.go
new file mode 100644
index 0000000..e6461d0
--- /dev/null
+++ b/internal/serve/cancel.go
@@ -0,0 +1,28 @@
+package serve
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/timescale/ghost/internal/serve/dbdriver"
+)
+
+// handleCancelRun serves POST /api/cancelRun. The widget rarely uses this
+// path (it prefers AbortController on the executeQuery request), but we
+// support it: looking up the run by ID and triggering its queryCtx cancel,
+// which routes through pgConn.CancelRequest server-side.
+func (s *Server) handleCancelRun(w http.ResponseWriter, r *http.Request) {
+	var req cancelQueryRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		return
+	}
+	run := s.runs.get(req.RunID)
+	if run == nil {
+		http.NotFound(w, r)
+		return
+	}
+	run.setError(&dbdriver.NormalizedError{Message: "query canceled by user", Source: "ghost", Cancel: true})
+	run.cancelQuery()
+	w.WriteHeader(http.StatusNoContent)
+}
diff --git a/internal/serve/connect.go b/internal/serve/connect.go
new file mode 100644
index 0000000..7e64e7c
--- /dev/null
+++ b/internal/serve/connect.go
@@ -0,0 +1,89 @@
+package serve
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/http"
+
+	"github.com/timescale/ghost/internal/api"
+	"github.com/timescale/ghost/internal/common"
+	"github.com/timescale/ghost/internal/serve/dbdriver"
+)
+
+// connectErr is a typed wrapper that carries a NormalizedError with
+// Connect:true. Returned by openDriverForService when something goes wrong
+// before the query starts (DB not found, not ready, missing password, TLS
+// failure).
+type connectErr struct {
+	norm *dbdriver.NormalizedError
+}
+
+func (c *connectErr) Error() string { return c.norm.Message }
+func (c *connectErr) Normalized() *dbdriver.NormalizedError { return c.norm }
+
+func newConnectErr(format string, args ...any) *connectErr {
+	return &connectErr{
+		norm: &dbdriver.NormalizedError{
+			Message: fmt.Sprintf(format, args...),
+			Source:  "ghost",
+			Connect: true,
+		},
+	}
+}
+
+// fetchDatabase loads the ghost-api Database record + ready check.
+func fetchDatabase(ctx context.Context, client api.ClientWithResponsesInterface, projectID, databaseRef string) (api.Database, error) {
+	resp, err := client.GetDatabaseWithResponse(ctx, projectID, databaseRef)
+	if err != nil {
+		return api.Database{}, newConnectErr("fetching database: %v", err)
+	}
+	if resp.StatusCode() != http.StatusOK {
+		if resp.JSONDefault != nil {
+			return api.Database{}, newConnectErr("ghost-api: %s", resp.JSONDefault.Message)
+		}
+		return api.Database{}, newConnectErr("ghost-api returned %d", resp.StatusCode())
+	}
+	if resp.JSON200 == nil {
+		return api.Database{}, newConnectErr("empty response from ghost-api")
+	}
+	return *resp.JSON200, nil
+}
+
+// defaultRole matches the role used by ghost sql / connect / etc.
+const defaultRole = "tsdbadmin"
+
+// openDriverForService resolves a ghost-api database, retrieves the password
+// for the default role, and opens a Postgres driver against it.
+func openDriverForService(ctx context.Context, client api.ClientWithResponsesInterface, projectID, serviceID string) (dbdriver.Driver, error) {
+	database, err := fetchDatabase(ctx, client, projectID, serviceID)
+	if err != nil {
+		return nil, err
+	}
+	if err := common.CheckReady(database); err != nil {
+		return nil, newConnectErr("%v", err)
+	}
+
+	password, err := common.GetPassword(database, defaultRole)
+	if err != nil {
+		if errors.Is(err, common.ErrPasswordNotFound) {
+			return nil, newConnectErr("no password found for database %s; run `ghost password %s` or add an entry to ~/.pgpass", database.Name, database.Id)
+		}
+		return nil, newConnectErr("retrieving password: %v", err)
+	}
+
+	connStr, err := common.BuildConnectionString(common.ConnectionStringArgs{
+		Database: database,
+		Role:     defaultRole,
+		Password: password,
+	})
+	if err != nil {
+		return nil, newConnectErr("building connection string: %v", err)
+	}
+
+	driver, err := dbdriver.OpenPostgresDSN(ctx, connStr)
+	if err != nil {
+		return nil, newConnectErr("connecting: %v", err)
+	}
+	return driver, nil
+}
diff --git a/internal/serve/dbdriver/api.go b/internal/serve/dbdriver/api.go
new file mode 100644
index 0000000..659037e
--- /dev/null
+++ b/internal/serve/dbdriver/api.go
@@ -0,0 +1,72 @@
+// Package dbdriver wraps database/sql + pgx to give us OID-aware column
+// scan-type inference, server-side query cancellation, and a Postgres error
+// normalizer suitable for projecting into the wire format the
+// popsql-query-widget expects.
+//
+// This is a trimmed-down port of github.com/timescale/popsql-query's
+// internal/driver package — Postgres only, no SSH tunneling, no multi-driver
+// adapter registry, and no logging side-effects.
+package dbdriver
+
+import (
+	"errors"
+	"reflect"
+)
+
+// ColumnCase controls how column names are presented to the widget. Today we
+// always emit them as-is.
+type ColumnCase string
+
+const (
+	ColumnCaseDefault ColumnCase = ""
+	ColumnCaseLower   ColumnCase = "lower"
+	ColumnCaseUpper   ColumnCase = "upper"
+)
+
+// Column carries column metadata to the widget. JSON shape matches the
+// "Column" type defined by @popsql/types and consumed by
+// popsql-query-widget's TimescaleQueryClient.
+type Column struct {
+	Name      string       `json:"name"`
+	Type      string       `json:"type,omitempty"`
+	Length    int64        `json:"length,omitempty"`
+	Precision int64        `json:"precision,omitempty"`
+	Scale     int64        `json:"scale,omitempty"`
+	Object    bool         `json:"isObject,omitempty"`
+	Numeric   bool         `json:"isNumeric,omitempty"`
+	ScanType  reflect.Type `json:"-"`
+}
+
+// Metadata is reserved for future use; popsql-query's Metadata is only
+// populated by BigQuery's bytes-processed counter.
+type Metadata struct {
+	BytesProcessed int64 `json:"bytesProcessed"`
+}
+
+// NormalizedError is the canonical error shape consumed by the widget. The
+// JSON shape mirrors @popsql/types' ApiFailedResult error.
+type NormalizedError struct {
+	Code     string `json:"code,omitempty"`
+	Column   int32  `json:"column,omitempty"`
+	Detail   string `json:"detail,omitempty"`
+	Hint     string `json:"hint,omitempty"`
+	Line     int32  `json:"line,omitempty"`
+	Message  string `json:"message"`
+	Position int32  `json:"position,omitempty"`
+
+	Source string `json:"source"`
+
+	Connect bool `json:"connect,omitempty"`
+	Fatal   bool `json:"fatal,omitempty"`
+	Timeout bool `json:"timeout,omitempty"`
+	Cancel  bool `json:"cancel,omitempty"`
+}
+
+func (e *NormalizedError) Error() string { return e.Message }
+
+// ErrMultiStatement is returned when the user attempts to run multiple
+// statements in a single query. Multi-statement support requires either an
+// extended-protocol round trip per statement or pgx's "simple protocol" mode,
+// which interpolates parameters client-side. For now we follow popsql-query's
+// posture and reject the case.
+var ErrMultiStatement = errors.New("cannot run multiple statements in a single query")
diff --git a/internal/serve/dbdriver/cancel.go b/internal/serve/dbdriver/cancel.go
new file mode 100644
index 0000000..6818d01
--- /dev/null
+++ b/internal/serve/dbdriver/cancel.go
@@ -0,0 +1,44 @@
+package dbdriver
+
+import (
+	"context"
+)
+
+// canceler runs when the parent context of a query is canceled. The
+// Postgres driver passes a closure that issues `pg_cancel_backend()` via a
+// side-channel connection.
+type canceler func(ctx context.Context) error
+
+// cancelContext returns a fresh context (NOT a child of parent) plus a
+// CancelFunc. When parent is canceled the supplied canceler is invoked; if
+// the canceler returns an error we propagate parent's cancellation cause
+// into the returned context as a fallback. The returned CancelFunc must be
+// called when the query is finished to release the watcher goroutine.
+//
+// The reason for the not-a-child context is so that pgx does not abort the
+// query mid-flight on its own — we want a graceful cancel through Postgres,
+// so we can still surface a useful error to the client.
+func cancelContext(parent context.Context, fn canceler) (context.Context, context.CancelFunc) {
+	newCtx, cancel := context.WithCancelCause(context.Background())
+
+	quit := make(chan struct{})
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		select {
+		case <-parent.Done():
+			if err := fn(newCtx); err != nil {
+				// Fall back to immediate cancel if the server-side cancel
+				// failed (e.g. the backend connection is already dead).
+				cancel(parent.Err())
+			}
+		case <-quit:
+		}
+	}()
+
+	return newCtx, func() {
+		close(quit)
+		<-done
+		cancel(nil)
+	}
+}
diff --git a/internal/serve/dbdriver/driver.go b/internal/serve/dbdriver/driver.go
new file mode 100644
index 0000000..8e2bbd7
--- /dev/null
+++ b/internal/serve/dbdriver/driver.go
@@ -0,0 +1,198 @@
+package dbdriver
+
+import (
+	"context"
+	"database/sql"
+	"database/sql/driver"
+	"errors"
+	"fmt"
+	"io"
+	"net"
+	"reflect"
+	"time"
+
+	"github.com/timescale/ghost/internal/serve/dbtypes"
+)
+
+// Driver runs arbitrary SQL queries against a database connection. It wraps
+// the underlying database/sql connection and adds OID-aware scan type
+// inference, error normalization, and server-side cancellation hooks.
+type Driver interface {
+	Ping(ctx context.Context) error
+	PingInterval() time.Duration
+
+	// Context returns a context (not necessarily a child of ctx) that should
+	// be passed to Query. CancelFunc must be invoked once the query completes.
+	Context(ctx context.Context) (context.Context, context.CancelFunc)
+
+	// Query issues a SQL statement and returns Rows. The context returned by
+	// Context must be the one passed in.
+	Query(ctx context.Context, args QueryArgs) (Rows, error)
+
+	// NormalizeError adapts a database/sql or driver-specific error to the
+	// wire NormalizedError shape expected by the widget.
+	NormalizeError(ctx context.Context, err error) *NormalizedError
+
+	Close() error
+}
+
+// QueryArgs is the input to Driver.Query.
+type QueryArgs struct {
+	Query      string
+	ColumnCase ColumnCase
+}
+
+// baseDriver is the standard implementation, shared by every concrete driver.
+// Driver-specific behavior (e.g. Postgres OID overrides, cancellation via
+// pgconn.CancelRequest) is layered on top by embedding this type.
+type baseDriver struct {
+	client string
+	db     *sql.DB
+	conn   *sql.Conn
+}
+
+func (b *baseDriver) Ping(ctx context.Context) error {
+	return b.conn.PingContext(ctx)
+}
+
+func (b *baseDriver) PingInterval() time.Duration {
+	return 5 * time.Second
+}
+
+func (b *baseDriver) Context(ctx context.Context) (context.Context, context.CancelFunc) {
+	return ctx, func() {}
+}
+
+func (b *baseDriver) Query(ctx context.Context, args QueryArgs) (Rows, error) {
+	return b.query(ctx, args, b.scanType)
+}
+
+func (b *baseDriver) query(ctx context.Context, args QueryArgs, scanTypeFn scanTypeFn) (*baseRows, error) {
+	rows, err := b.conn.QueryContext(ctx, args.Query)
+	if err != nil {
+		return nil, err
+	}
+	return &baseRows{
+		Rows:       rows,
+		columnCase: args.ColumnCase,
+		scanTypeFn: scanTypeFn,
+	}, nil
+}
+
+// scanType maps a [sql.ColumnType] to the concrete Go type to scan into. The
+// base implementation collapses sql.Null* into pointer-to-primitive (which
+// JSON-encodes more cleanly) and ensures every scan target is addressable as
+// a pointer so NULLs can be detected.
+func (b *baseDriver) scanType(columnType *sql.ColumnType) reflect.Type {
+	t := columnType.ScanType()
+	switch t {
+	case dbtypes.NullBoolType, dbtypes.NullBoolPtrType:
+		t = dbtypes.BoolType
+	case dbtypes.NullByteType, dbtypes.NullBytePtrType:
+		t = dbtypes.ByteType
+	case dbtypes.NullFloat64Type, dbtypes.NullFloat64PtrType:
+		t = dbtypes.Float64Type
+	case dbtypes.NullInt16Type, dbtypes.NullInt16PtrType:
+		t = dbtypes.Int16Type
+	case dbtypes.NullInt32Type, dbtypes.NullInt32PtrType:
+		t = dbtypes.Int32Type
+	case dbtypes.NullInt64Type, dbtypes.NullInt64PtrType:
+		t = dbtypes.Int64Type
+	case dbtypes.NullStringType, dbtypes.NullStringPtrType:
+		t = dbtypes.StringType
+	case dbtypes.NullTimeType, dbtypes.NullTimePtrType:
+		t = dbtypes.TimeType
+	case dbtypes.RawBytesType:
+		t = dbtypes.BytesType
+	case nil:
+		t = dbtypes.AnyType
+	}
+
+	switch t.Kind() {
+	case reflect.Pointer, reflect.Interface:
+	default:
+		t = reflect.PointerTo(t)
+	}
+	return t
+}
+
+func (b *baseDriver) NormalizeError(ctx context.Context, err error) *NormalizedError {
+	ctxErr := context.Cause(ctx)
+	return &NormalizedError{
+		Message: b.errMessage(err),
+		Source:  b.client,
+		Fatal:   b.fatal(err),
+		Timeout: errors.Is(ctxErr, context.DeadlineExceeded),
+		Cancel:  errors.Is(ctxErr, context.Canceled),
+	}
+}
+
+func (b *baseDriver) errMessage(err error) string {
+	if errors.Is(err, io.ErrUnexpectedEOF) {
+		return "the database connection was terminated unexpectedly"
+	}
+	return err.Error()
+}
+
+var fatalErrs = []error{
+	driver.ErrBadConn,
+	sql.ErrConnDone,
+	io.ErrUnexpectedEOF,
+	net.ErrClosed,
+}
+
+func (b *baseDriver) fatal(err error) bool {
+	for _, t := range fatalErrs {
+		if errors.Is(err, t) {
+			return true
+		}
+	}
+	return b.invalidConn()
+}
+
+func (b *baseDriver) invalidConn() bool {
+	var invalid bool
+	if err := b.conn.Raw(func(driverConn any) error {
+		if v, ok := driverConn.(driver.Validator); ok {
+			invalid = !v.IsValid()
+		}
+		return nil
+	}); errors.Is(err, driver.ErrBadConn) {
+		return true
+	}
+	return invalid
+}
+
+func (b *baseDriver) Close() error {
+	var errs []error
+	if err := b.conn.Close(); err != nil && !errors.Is(err, sql.ErrConnDone) {
+		errs = append(errs, fmt.Errorf("closing database connection: %w", err))
+	}
+	if err := b.db.Close(); err != nil {
+		errs = append(errs, fmt.Errorf("closing database connection pool: %w", err))
+	}
+	return errors.Join(errs...)
+}
+
+func newBaseDriver(ctx context.Context, client string, db *sql.DB) (baseDriver, error) {
+	db.SetMaxIdleConns(0)
+	conn, err := db.Conn(ctx)
+	if err != nil {
+		return baseDriver{}, err
+	}
+	return baseDriver{client: client, db: db, conn: conn}, nil
+}
+
+func closeDBOnErr(db *sql.DB, err *error) {
+	if err == nil || *err == nil {
+		return
+	}
+	_ = db.Close()
+}
+
+func closeConnOnErr(conn *sql.Conn, err *error) {
+	if err == nil || *err == nil {
+		return
+	}
+	_ = conn.Close()
+}
diff --git a/internal/serve/dbdriver/postgres.go b/internal/serve/dbdriver/postgres.go
new file mode 100644
index 0000000..0ecc91f
--- /dev/null
+++ b/internal/serve/dbdriver/postgres.go
@@ -0,0 +1,175 @@
+package dbdriver
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+	"reflect"
+	"strings"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+	"github.com/jackc/pgx/v5/stdlib"
+
+	"github.com/timescale/ghost/internal/serve/dbtypes"
+)
+
+const postgresClient = "postgres"
+
+// ApplicationName is set in the Postgres connection's `application_name`
+// runtime parameter so we are identifiable in `pg_stat_activity`.
+var ApplicationName = "ghost-cli"
+
+// OpenPostgresDSN opens a Postgres driver against the supplied DSN. The DSN
+// should already include sslmode etc. (see common.BuildConnectionString).
+func OpenPostgresDSN(ctx context.Context, dsn string) (Driver, error) {
+	pgxCfg, err := pgx.ParseConfig(dsn)
+	if err != nil {
+		return nil, fmt.Errorf("parsing dsn: %w", err)
+	}
+	return openPostgresConfig(ctx, pgxCfg)
+}
+
+func openPostgresConfig(ctx context.Context, pgxCfg *pgx.ConnConfig) (d Driver, err error) {
+	// SimpleProtocol lets users send arbitrary text (multi-statement SQL,
+	// comments, trailing semicolons) the same way `ghost sql` does. The
+	// alternative extended-protocol modes need a single, parseable
+	// statement per call, which is a poor fit for an interactive editor.
+	pgxCfg.DefaultQueryExecMode = pgx.QueryExecModeSimpleProtocol
+	if pgxCfg.RuntimeParams == nil {
+		pgxCfg.RuntimeParams = map[string]string{}
+	}
+	pgxCfg.RuntimeParams["application_name"] = ApplicationName
+
+	tracer := &postgresQueryTracer{}
+	pgxCfg.Tracer = tracer
+
+	db := stdlib.OpenDB(*pgxCfg)
+	defer closeDBOnErr(db, &err)
+
+	base, err := newBaseDriver(ctx, postgresClient, db)
+	if err != nil {
+		return nil, err
+	}
+	defer closeConnOnErr(base.conn, &err)
+
+	var pgConn *pgconn.PgConn
+	if err := base.conn.Raw(func(driverConn any) error {
+		pgConn = driverConn.(*stdlib.Conn).Conn().PgConn()
+		return nil
+	}); err != nil {
+		return nil, fmt.Errorf("getting raw driver connection: %w", err)
+	}
+
+	return &postgresDriver{
+		baseDriver:          base,
+		postgresQueryTracer: tracer,
+		pgConn:              pgConn,
+	}, nil
+}
+
+// postgresQueryTracer captures the most recent pgconn.CommandTag so we can
+// surface RowsAffected for INSERT/UPDATE/DELETE/etc., which database/sql
+// hides behind a one-shot Result we can't get from a Query call.
+type postgresQueryTracer struct {
+	lastCommandTag *pgconn.CommandTag
+}
+
+func (t *postgresQueryTracer) TraceQueryStart(ctx context.Context, _ *pgx.Conn, _ pgx.TraceQueryStartData) context.Context {
+	t.lastCommandTag = nil
+	return ctx
+}
+
+func (t *postgresQueryTracer) TraceQueryEnd(_ context.Context, _ *pgx.Conn, data pgx.TraceQueryEndData) {
+	t.lastCommandTag = &data.CommandTag
+}
+
+type postgresDriver struct {
+	baseDriver
+	*postgresQueryTracer
+	pgConn *pgconn.PgConn
+}
+
+// Context wraps the query in a cancellation handler that issues
+// pg_cancel_backend() server-side when the parent context is canceled. This
+// lets long-running queries terminate cleanly without dropping the
+// connection mid-flight.
+func (d *postgresDriver) Context(ctx context.Context) (context.Context, context.CancelFunc) {
+	return cancelContext(ctx, func(ctx context.Context) error {
+		return d.pgConn.CancelRequest(ctx)
+	})
+}
+
+func (d *postgresDriver) Query(ctx context.Context, args QueryArgs) (Rows, error) {
+	baseRows, err := d.query(ctx, args, d.scanType)
+	if err != nil {
+		return nil, err
+	}
+	return &postgresRows{
+		baseRows:            *baseRows,
+		postgresQueryTracer: d.postgresQueryTracer,
+	}, nil
+}
+
+// scanType overlays Postgres-specific type targeting on top of baseDriver.
+// JSON/JSONB go through our typed JSON scanner (preserves raw text);
+// NUMERIC preserves arbitrary precision and special values (NaN, ±Inf);
+// BYTEA goes through hex-encoding rather than raw bytes;
+// DATE/TIMESTAMP/TIMESTAMPTZ use our string scanners that preserve the
+// database's own formatting (the stdlib Postgres driver maps these to
+// time.Time, which loses precision and special values like Infinity).
+func (d *postgresDriver) scanType(columnType *sql.ColumnType) reflect.Type {
+	switch columnType.DatabaseTypeName() {
+	case "JSON", "JSONB":
+		return dbtypes.JSONPtrType
+	case "NUMERIC":
+		return dbtypes.NumericPtrType
+	case "BYTEA":
+		return dbtypes.BinaryPtrType
+	case "DATE":
+		return dbtypes.DatePtrType
+	case "TIMESTAMP":
+		return dbtypes.DateTimePtrType
+	case "TIMESTAMPTZ":
+		return dbtypes.TimestampPtrType
+	}
+	return d.baseDriver.scanType(columnType)
+}
+
+func (d *postgresDriver) NormalizeError(ctx context.Context, err error) *NormalizedError {
+	normalized := d.baseDriver.NormalizeError(ctx, err)
+
+	var pgErr *pgconn.PgError
+	if errors.As(err, &pgErr) {
+		if strings.EqualFold(pgErr.Severity, "FATAL") {
+			normalized.Fatal = true
+		}
+		// Translate the generic 42601 "syntax error" emitted by pgx when the
+		// caller sends multiple statements to a single prepared call into our
+		// own actionable message.
+		if pgErr.Code == "42601" && pgErr.Message == "cannot insert multiple commands into a prepared statement" {
+			normalized.Message = ErrMultiStatement.Error()
+			return normalized
+		}
+		normalized.Code = pgErr.Code
+		normalized.Detail = pgErr.Detail
+		normalized.Hint = pgErr.Hint
+		normalized.Message = pgErr.Message
+		normalized.Position = pgErr.Position
+	}
+	return normalized
+}
+
+type postgresRows struct {
+	baseRows
+	*postgresQueryTracer
+}
+
+func (r *postgresRows) RowsAffected(_ context.Context) (*int64, error) {
+	if r.lastCommandTag != nil {
+		ra := r.lastCommandTag.RowsAffected()
+		return &ra, nil
+	}
+	return nil, nil
+}
diff --git a/internal/serve/dbdriver/rows.go b/internal/serve/dbdriver/rows.go
new file mode 100644
index 0000000..b5b3a1b
--- /dev/null
+++ b/internal/serve/dbdriver/rows.go
@@ -0,0 +1,174 @@
+package dbdriver
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"reflect"
+	"strings"
+	"unicode"
+
+	"github.com/timescale/ghost/internal/serve/dbtypes"
+)
+
+// Rows wraps [sql.Rows] with column metadata + accessors for row-affected
+// counts. Always close after iteration.
+type Rows interface {
+	Next() bool
+	Scan(dest ...any) error
+	Err() error
+	Close() error
+
+	Columns() (Columns, error)
+	Metadata(ctx context.Context) (*Metadata, error)
+	RowsAffected(ctx context.Context) (*int64, error)
+}
+
+// Columns is a convenience wrapper around []Column.
+type Columns []Column
+
+// ScanTypes returns the Go types each column's value will be scanned into.
+func (c Columns) ScanTypes() []reflect.Type {
+	out := make([]reflect.Type, len(c))
+	for i, column := range c {
+		out[i] = column.ScanType
+	}
+	return out
+}
+
+// ScanTargets is a slice of newly-allocated pointers suitable for passing to
+// Rows.Scan().
+type ScanTargets []any
+
+// ScanTargets allocates fresh scan targets for each column.
+func (c Columns) ScanTargets() ScanTargets {
+	targets := make(ScanTargets, len(c))
+	for i, column := range c {
+		targets[i] = reflect.New(column.ScanType).Interface()
+	}
+	return targets
+}
+
+// Values dereferences the scan targets after a call to Rows.Scan.
+func (s ScanTargets) Values() []any {
+	vals := make([]any, len(s))
+	for i, target := range s {
+		vals[i] = reflect.ValueOf(target).Elem().Interface()
+	}
+	return vals
+}
+
+type scanTypeFn func(columnType *sql.ColumnType) reflect.Type
+
+type baseRows struct {
+	*sql.Rows
+	columnCase ColumnCase
+	scanTypeFn scanTypeFn
+}
+
+func (r *baseRows) Columns() (Columns, error) {
+	columnTypes, err := r.ColumnTypes()
+	if err != nil {
+		return nil, err
+	}
+
+	columns := make(Columns, len(columnTypes))
+	deduper := newDeduper(columnTypes)
+
+	// Two passes: named columns first so unnamed columns don't claim names
+	// that the database actually produced.
+	for i, ct := range columnTypes {
+		if ct.Name() != "" {
+			columns[i] = r.buildColumn(deduper, ct)
+		}
+	}
+	for i, ct := range columnTypes {
+		if ct.Name() == "" {
+			columns[i] = r.buildColumn(deduper, ct)
+		}
+	}
+	return columns, nil
+}
+
+func (r *baseRows) buildColumn(deduper deduper, ct *sql.ColumnType) Column {
+	scanType := r.scanTypeFn(ct)
+	column := Column{
+		Name:     deduper.dedupe(ct, r.columnCase),
+		Type:     ct.DatabaseTypeName(),
+		Object:   scanType == dbtypes.JSONPtrType,
+		Numeric:  scanType == dbtypes.NumericPtrType,
+		ScanType: scanType,
+	}
+	if length, ok := ct.Length(); ok {
+		column.Length = length
+	}
+	if precision, scale, ok := ct.DecimalSize(); ok {
+		column.Precision = precision
+		column.Scale = scale
+	}
+	return column
+}
+
+func (r *baseRows) Metadata(ctx context.Context) (*Metadata, error)       { return nil, nil }
+func (r *baseRows) RowsAffected(ctx context.Context) (*int64, error)      { return nil, nil }
+
+type deduper map[string]int
+
+func newDeduper(columnTypes []*sql.ColumnType) deduper {
+	d := deduper{}
+	for _, ct := range columnTypes {
+		d[d.columnKey(ct.Name())] = 0
+	}
+	return d
+}
+
+func (d deduper) columnKey(name string) string { return strings.ToLower(name) }
+
+func (d deduper) columnName(ct *sql.ColumnType, columnCase ColumnCase) string {
+	name := ct.Name()
+	if name == "" {
+		name = "column"
+	}
+	switch columnCase {
+	case ColumnCaseDefault:
+		return name
+	case ColumnCaseLower:
+		if d.mixedCase(name) {
+			return name
+		}
+		return strings.ToLower(name)
+	case ColumnCaseUpper:
+		if d.mixedCase(name) {
+			return name
+		}
+		return strings.ToUpper(name)
+	default:
+		panic(fmt.Errorf("invalid column case: %s", columnCase))
+	}
+}
+
+func (d deduper) mixedCase(name string) bool {
+	return strings.ContainsFunc(name, unicode.IsLower) &&
+		strings.ContainsFunc(name, unicode.IsUpper)
+}
+
+func (d deduper) dedupe(ct *sql.ColumnType, columnCase ColumnCase) string {
+	name := d.columnName(ct, columnCase)
+	key := d.columnKey(name)
+
+	count := d[key]
+	if count == 0 {
+		d[key] = 1
+		return name
+	}
+
+	for {
+		newName := fmt.Sprintf("%s_%d", name, count)
+		newKey := d.columnKey(newName)
+		count++
+		if _, exists := d[newKey]; !exists {
+			d[key] = count
+			return newName
+		}
+	}
+}
diff --git a/internal/serve/dbtypes/binary.go b/internal/serve/dbtypes/binary.go
new file mode 100644
index 0000000..472dab6
--- /dev/null
+++ b/internal/serve/dbtypes/binary.go
@@ -0,0 +1,22 @@
+package dbtypes
+
+import (
+	"encoding/hex"
+	"fmt"
+)
+
+// Binary is a type that represents binary data in standard Postgres hex format.
+// See https://www.postgresql.org/docs/current/datatype-binary.html#DATATYPE-BINARY-BYTEA-HEX-FORMAT
+type Binary string
+
+// Scan implements the [sql.Scanner] interface. It converts a []byte
+// value to a string containing a hex representation of the value.
+func (b *Binary) Scan(src any) error {
+	switch val := src.(type) {
+	case []byte:
+		*b = Binary(fmt.Sprintf(`\x%s`, hex.EncodeToString(val)))
+	default:
+		return fmt.Errorf("unsupported Scan, storing driver.Value type %T into type Binary", src)
+	}
+	return nil
+}
diff --git a/internal/serve/dbtypes/date.go b/internal/serve/dbtypes/date.go
new file mode 100644
index 0000000..bc84a2c
--- /dev/null
+++ b/internal/serve/dbtypes/date.go
@@ -0,0 +1,99 @@
+package dbtypes
+
+import (
+	"fmt"
+	"time"
+)
+
+type Date string
+
+func (d *Date) Scan(src any) error {
+	switch val := src.(type) {
+	case nil:
+		d = nil
+	case string:
+		*d = Date(val)
+	case time.Time:
+		*d = Date(val.Format(time.DateOnly))
+	default:
+		return fmt.Errorf("unexpected date type: %T", val)
+	}
+	return nil
+}
+
+type ClockTime string
+
+func (c *ClockTime) Scan(src any) error {
+	switch val := src.(type) {
+	case nil:
+		c = nil
+	case string:
+		*c = ClockTime(val)
+	case time.Time:
+		*c = ClockTime(val.Format("15:04:05.999999"))
+	default:
+		return fmt.Errorf("unexpected clock time type: %T", val)
+	}
+	return nil
+}
+
+type ClockTimeTZ string
+
+func (c *ClockTimeTZ) Scan(src any) error {
+	switch val := src.(type) {
+	case nil:
+		c = nil
+	case string:
+		*c = ClockTimeTZ(val)
+	case time.Time:
+		*c = ClockTimeTZ(val.Format("15:04:05.999999-" + getTimeZoneOffsetLayout(val)))
+	default:
+		return fmt.Errorf("unexpected clock time with time zone type: %T", val)
+	}
+	return nil
+}
+
+type DateTime string
+
+func (d *DateTime) Scan(src any) error {
+	switch val := src.(type) {
+	case nil:
+		d = nil
+	case string:
+		*d = DateTime(val)
+	case time.Time:
+		*d = DateTime(val.Format("2006-01-02 15:04:05.999999"))
+	default:
+		return fmt.Errorf("unexpected date time type: %T", val)
+	}
+	return nil
+}
+
+type Timestamp string
+
+func (t *Timestamp) Scan(src any) error {
+	switch val := src.(type) {
+	case nil:
+		t = nil
+	case string:
+		*t = Timestamp(val)
+	case time.Time:
+		*t = Timestamp(val.Format("2006-01-02 15:04:05.999999-" + getTimeZoneOffsetLayout(val)))
+	default:
+		return fmt.Errorf("unexpected date time type: %T", val)
+	}
+	return nil
+}
+
+// getTimeZoneOffsetLayout returns the timezone-offset portion of the
+// timestamp layout. If the offset has a non-zero minutes portion, both hours
+// and minutes are included (matching Postgres default behavior); otherwise
+// just the hours portion is included.
+func getTimeZoneOffsetLayout(t time.Time) string {
+	_, offset := t.Zone()
+	minutes := (offset % 3600) / 60
+	if minutes == 0 {
+		return "07"
+	}
+	return "07:00"
+}
diff --git a/internal/serve/dbtypes/json.go b/internal/serve/dbtypes/json.go
new file mode 100644
index 0000000..94e6600
--- /dev/null
+++ b/internal/serve/dbtypes/json.go
@@ -0,0 +1,37 @@
+package dbtypes
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+// JSON represents an arbitrary JSON value without unmarshalling it into a
+// concrete Go type.
+type JSON string
+
+// MarshalJSON emits the underlying string as a literal JSON value.
+func (j JSON) MarshalJSON() ([]byte, error) {
+	return json.Marshal(json.RawMessage(j))
+}
+
+// Scan accepts string, []byte, or already-decoded map/slice values and stores
+// the raw JSON encoding.
+func (j *JSON) Scan(src any) error {
+	switch val := src.(type) {
+	case string:
+		*j = JSON(val)
+	case []byte:
+		// Casting to a string copies the byte slice, which is critical: some
+		// drivers reuse the underlying buffer between Scan calls.
+		*j = JSON(val)
+	case map[string]any, []any:
+		out, err := json.Marshal(val)
+		if err != nil {
+			return fmt.Errorf("error marshalling %T to JSON: %w", src, err)
+		}
+		*j = JSON(out)
+	default:
+		return fmt.Errorf("unsupported Scan, storing driver.Value type %T into type JSON", src)
+	}
+	return nil
+}
diff --git a/internal/serve/dbtypes/numeric.go b/internal/serve/dbtypes/numeric.go
new file mode 100644
index 0000000..0731c0e
--- /dev/null
+++ b/internal/serve/dbtypes/numeric.go
@@ -0,0 +1,18 @@
+package dbtypes
+
+import "encoding/json"
+
+// Numeric represents arbitrary-precision decimal values as well as special
+// values like Infinity, -Infinity, and NaN.
+type Numeric string
+
+// MarshalJSON marshals the underlying string as a json.Number when possible
+// (i.e. as a number without quotes), falling back to a string when the value
+// is not a valid JSON number (e.g. Postgres's Infinity, -Infinity, NaN).
+func (n Numeric) MarshalJSON() ([]byte, error) {
+	out, err := json.Marshal(json.Number(n))
+	if err != nil {
+		return json.Marshal(string(n))
+	}
+	return out, err
+}
diff --git a/internal/serve/dbtypes/types.go b/internal/serve/dbtypes/types.go
new file mode 100644
index 0000000..9ba4c6c
--- /dev/null
+++ b/internal/serve/dbtypes/types.go
@@ -0,0 +1,90 @@
+// Package dbtypes contains custom scan types used to preserve database-side
+// precision and special values (NaN, +/-Infinity, untyped JSON, hex-encoded
+// bytea, plain DATE/TIMESTAMP strings) when reading rows out of database/sql.
+//
+// Ported from github.com/timescale/popsql-query/internal/types so the Apache
+// Arrow encoding in this package matches the wire contract the
+// popsql-query-widget expects from the savannah gateway.
+package dbtypes
+
+import (
+	"database/sql"
+	"reflect"
+	"time"
+)
+
+var (
+	RawBytesType = reflect.TypeFor[sql.RawBytes]()
+
+	AnyType         = reflect.TypeFor[any]()
+	BoolType        = reflect.TypeFor[bool]()
+	ByteType        = reflect.TypeFor[byte]()
+	Float32Type     = reflect.TypeFor[float32]()
+	Float64Type     = reflect.TypeFor[float64]()
+	IntType         = reflect.TypeFor[int]()
+	Int8Type        = reflect.TypeFor[int8]()
+	Int16Type       = reflect.TypeFor[int16]()
+	Int32Type       = reflect.TypeFor[int32]()
+	Int64Type       = reflect.TypeFor[int64]()
+	UintType        = reflect.TypeFor[uint]()
+	Uint8Type       = reflect.TypeFor[uint8]()
+	Uint16Type      = reflect.TypeFor[uint16]()
+	Uint32Type      = reflect.TypeFor[uint32]()
+	Uint64Type      = reflect.TypeFor[uint64]()
+	StringType      = reflect.TypeFor[string]()
+	BytesType       = reflect.TypeFor[[]byte]()
+	TimeType        = reflect.TypeFor[time.Time]()
+	DateType        = reflect.TypeFor[Date]()
+	ClockTimeType   = reflect.TypeFor[ClockTime]()
+	ClockTimeTZType = reflect.TypeFor[ClockTimeTZ]()
+	DateTimeType    = reflect.TypeFor[DateTime]()
+	TimestampType   = reflect.TypeFor[Timestamp]()
+	NumericType     = reflect.TypeFor[Numeric]()
+	JSONType        = reflect.TypeFor[JSON]()
+	BinaryType      = reflect.TypeFor[Binary]()
+
+	AnyPtrType         = reflect.PointerTo(AnyType)
+	BoolPtrType        = reflect.PointerTo(BoolType)
+	BytePtrType        = reflect.PointerTo(ByteType)
+	Float32PtrType     = reflect.PointerTo(Float32Type)
+	Float64PtrType     = reflect.PointerTo(Float64Type)
+	IntPtrType         = reflect.PointerTo(IntType)
+	Int8PtrType        = reflect.PointerTo(Int8Type)
+	Int16PtrType       = reflect.PointerTo(Int16Type)
+	Int32PtrType       = reflect.PointerTo(Int32Type)
+	Int64PtrType       = reflect.PointerTo(Int64Type)
+	UintPtrType        = reflect.PointerTo(UintType)
+	Uint8PtrType       = reflect.PointerTo(Uint8Type)
+	Uint16PtrType      = reflect.PointerTo(Uint16Type)
+	Uint32PtrType      = reflect.PointerTo(Uint32Type)
+	Uint64PtrType      = reflect.PointerTo(Uint64Type)
+	StringPtrType      = reflect.PointerTo(StringType)
+	BytesPtrType       = reflect.PointerTo(BytesType)
+	TimePtrType        = reflect.PointerTo(TimeType)
+	DatePtrType        = reflect.PointerTo(DateType)
+	ClockTimePtrType   = reflect.PointerTo(ClockTimeType)
+	ClockTimeTZPtrType = reflect.PointerTo(ClockTimeTZType)
+	DateTimePtrType    = reflect.PointerTo(DateTimeType)
+	TimestampPtrType   = reflect.PointerTo(TimestampType)
+	NumericPtrType     = reflect.PointerTo(NumericType)
+	JSONPtrType        = reflect.PointerTo(JSONType)
+	BinaryPtrType      = reflect.PointerTo(BinaryType)
+
+	NullBoolType    = reflect.TypeFor[sql.NullBool]()
+	NullByteType    = reflect.TypeFor[sql.NullByte]()
+	NullFloat64Type = reflect.TypeFor[sql.NullFloat64]()
+	NullInt16Type   = reflect.TypeFor[sql.NullInt16]()
+	NullInt32Type   = reflect.TypeFor[sql.NullInt32]()
+	NullInt64Type   = reflect.TypeFor[sql.NullInt64]()
+	NullStringType  = reflect.TypeFor[sql.NullString]()
+	NullTimeType    = reflect.TypeFor[sql.NullTime]()
+
+	NullBoolPtrType    = reflect.PointerTo(NullBoolType)
+	NullBytePtrType    = reflect.PointerTo(NullByteType)
+	NullFloat64PtrType = reflect.PointerTo(NullFloat64Type)
+	NullInt16PtrType   = reflect.PointerTo(NullInt16Type)
+	NullInt32PtrType   = reflect.PointerTo(NullInt32Type)
+	NullInt64PtrType   = reflect.PointerTo(NullInt64Type)
+	NullStringPtrType  = reflect.PointerTo(NullStringType)
+	NullTimePtrType    = reflect.PointerTo(NullTimeType)
+)
diff --git a/internal/serve/execute.go b/internal/serve/execute.go
new file mode 100644
index 0000000..4ea6a30
--- /dev/null
+++ b/internal/serve/execute.go
@@ -0,0 +1,178 @@
+package serve
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"net/http"
+	"time"
+
+	"github.com/timescale/ghost/internal/serve/dbdriver"
+)
+
+// handleExecuteQuery serves POST /api/executeQuery for one-shot mode (no
+// sessionId). A fresh driver is opened, the query runs, columns are
+// streamed, then arrowResults consumes the rows; we wait for it to finish
+// and emit the success/error terminator before closing.
+func (s *Server) handleExecuteQuery(w http.ResponseWriter, r *http.Request) {
+	var req executeQueryRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		return
+	}
+	if !s.checkProject(w, req.RunID, req.ProjectID) {
+		return
+	}
+
+	driver, connErr := openDriverForService(r.Context(), s.cfg.Client, req.ProjectID, req.ServiceID)
+	if connErr != nil {
+		ce := new(connectErr)
+		if errors.As(connErr, &ce) {
+			writeErrorTerminator(w, req.RunID, ce.Normalized())
+		} else {
+			writeErrorTerminator(w, req.RunID, &dbdriver.NormalizedError{Message: connErr.Error(), Source: "ghost", Connect: true})
+		}
+		return
+	}
+	defer driver.Close()
+
+	s.runQuery(w, r, req, driver, true)
+}
+
+// handleExecuteSessionQuery serves POST /api/executeSessionQuery. The
+// session-owned driver is reused; closing/cleanup is done in
+// handleCloseSession.
+func (s *Server) handleExecuteSessionQuery(w http.ResponseWriter, r *http.Request) {
+	var req executeSessionQueryRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		return
+	}
+	if !s.checkProject(w, req.RunID, req.ProjectID) {
+		return
+	}
+
+	session := s.sessions.get(req.SessionID)
+	if session == nil {
+		// 404 trips the widget's SessionError path, which prompts a fresh
+		// createSession on the next query attempt.
+		http.NotFound(w, r)
+		return
+	}
+
+	s.runQuery(w, r, req.executeQueryRequest, session.driver, false)
+}
+
+// runQuery is the shared body of handleExecuteQuery / handleExecuteSessionQuery.
+// ownsDriver controls whether arrowResults' cleanup will close the driver
+// (true in one-shot mode, false in session mode).
+func (s *Server) runQuery(w http.ResponseWriter, r *http.Request, req executeQueryRequest, driver dbdriver.Driver, ownsDriver bool) {
+	driverCtx, driverCleanup := driver.Context(r.Context())
+	defer driverCleanup()
+
+	rows, err := driver.Query(driverCtx, dbdriver.QueryArgs{Query: req.SQL()})
+	if err != nil {
+		writeErrorTerminator(w, req.RunID, driver.NormalizeError(driverCtx, err))
+		return
+	}
+	defer rows.Close()
+
+	columns, err := rows.Columns()
+	if err != nil {
+		writeErrorTerminator(w, req.RunID, driver.NormalizeError(driverCtx, err))
+		return
+	}
+
+	queryCtx, cancelQuery := context.WithCancel(r.Context())
+	defer cancelQuery()
+
+	run := &Run{
+		id:            req.RunID,
+		projectID:     req.ProjectID,
+		serviceID:     req.ServiceID,
+		startedAt:     time.Now(),
+		rows:          rows,
+		columns:       columns,
+		queryCtx:      queryCtx,
+		cancelQuery:   cancelQuery,
+		driverCleanup: driverCleanup,
+		ready:         make(chan struct{}),
+		done:          make(chan struct{}),
+	}
+	if ownsDriver {
+		run.driver = driver
+	}
+	s.runs.add(run)
+	defer s.runs.delete(req.RunID)
+	close(run.ready)
+
+	w.Header().Set("Content-Type", "application/x-ndjson")
+	w.Header().Set("Cache-Control", "no-store")
+
+	enc := json.NewEncoder(w)
+	if err := enc.Encode(columnsResult{RunID: req.RunID, Columns: columns}); err != nil {
+		// Client gone before the columns line could be written; bail.
+		cancelQuery()
+		return
+	}
+	flushWriter(w)
+
+	// Wait for arrowResults to finish, or for the client to disconnect.
+	select {
+	case <-run.done:
+	case <-r.Context().Done():
+		cancelQuery()
+		// Give arrowResults a brief window to wrap up cleanly so it sets the
+		// real rowCount + error. If it doesn't return promptly we mark the
+		// run as canceled and proceed.
+		select {
+		case <-run.done:
+		case <-time.After(2 * time.Second):
+			run.setError(&dbdriver.NormalizedError{Message: "request canceled", Source: "ghost", Cancel: true})
+			run.closeDone()
+		}
+	}
+
+	if run.err != nil {
+		_ = enc.Encode(errorResult{RunID: req.RunID, Success: false, Error: run.err})
+	} else {
+		_ = enc.Encode(successResult{
+			RunID:        req.RunID,
+			Success:      true,
+			RowCount:     run.rowCount,
+			RowsAffected: run.rowsAffected,
+		})
+	}
+	flushWriter(w)
+}
+
+// checkProject rejects requests for a different project than the one the CLI
+// is logged into. Single-user defense in depth.
+func (s *Server) checkProject(w http.ResponseWriter, runID, projectID string) bool {
+	if projectID == s.cfg.ProjectID {
+		return true
+	}
+	writeErrorTerminator(w, runID, &dbdriver.NormalizedError{
+		Message: "projectId does not match the active ghost project",
+		Source:  "ghost",
+	})
+	return false
+}
+
+// writeErrorTerminator writes a single-line NDJSON error response. Used when
+// the query never gets far enough to register a Run.
+func writeErrorTerminator(w http.ResponseWriter, runID string, norm *dbdriver.NormalizedError) {
+	w.Header().Set("Content-Type", "application/x-ndjson")
+	w.Header().Set("Cache-Control", "no-store")
+	_ = json.NewEncoder(w).Encode(errorResult{RunID: runID, Success: false, Error: norm})
+	flushWriter(w)
+}
+
+// flushWriter calls Flush if the writer supports it, which is needed so the
+// widget sees columns + success lines as they're written rather than batched
+// at the end.
+func flushWriter(w http.ResponseWriter) {
+	if f, ok := w.(http.Flusher); ok {
+		f.Flush()
+	}
+}
diff --git a/internal/serve/server.go b/internal/serve/server.go
index 2ce1889..c3b81b9 100644
--- a/internal/serve/server.go
+++ b/internal/serve/server.go
@@ -27,10 +27,12 @@ type Config struct {
 
 // Server wraps the HTTP server and exposes the resolved listen address.
 type Server struct {
-	cfg    Config
-	srv    *http.Server
-	ln     net.Listener
-	addr   string
+	cfg      Config
+	srv      *http.Server
+	ln       net.Listener
+	addr     string
+	runs     *runStore
+	sessions *sessionStore
 }
 
 // New constructs a Server with all routes registered. The listener is bound
@@ -53,18 +55,29 @@ func New(cfg Config) (*Server, error) {
 		return nil, fmt.Errorf("listen on %s: %w", addr, err)
 	}
 
+	s := &Server{
+		cfg:      cfg,
+		ln:       ln,
+		addr:     ln.Addr().String(),
+		runs:     newRunStore(),
+		sessions: newSessionStore(),
+	}
+
 	mux := http.NewServeMux()
 	mux.Handle("GET /healthz", healthzHandler())
 	mux.Handle("GET /api/bootstrap", newBootstrapHandler(cfg.ProjectID))
 	mux.Handle("GET /api/databases", newDatabasesHandler(cfg.Client, cfg.ProjectID))
+	mux.Handle("POST /api/executeQuery", http.HandlerFunc(s.handleExecuteQuery))
+	mux.Handle("POST /api/executeSessionQuery", http.HandlerFunc(s.handleExecuteSessionQuery))
+	mux.Handle("POST /api/arrowResults", http.HandlerFunc(s.handleArrowResults))
+	mux.Handle("POST /api/createSession", http.HandlerFunc(s.handleCreateSession))
+	mux.Handle("POST /api/closeSession", http.HandlerFunc(s.handleCloseSession))
+	mux.Handle("POST /api/sessionEvents", http.HandlerFunc(s.handleSessionEvents))
+	mux.Handle("POST /api/cancelRun", http.HandlerFunc(s.handleCancelRun))
 	mux.Handle("/", newAssetHandler())
 
-	return &Server{
-		cfg:  cfg,
-		srv:  &http.Server{Handler: mux, ReadHeaderTimeout: 10 * time.Second},
-		ln:   ln,
-		addr: ln.Addr().String(),
-	}, nil
+	s.srv = &http.Server{Handler: mux, ReadHeaderTimeout: 10 * time.Second}
+	return s, nil
 }
 
 // Addr returns the resolved listen address (with the OS-chosen port if Port
@@ -91,8 +104,10 @@ func (s *Server) Serve(ctx context.Context) error {
 		shutdownCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 		defer cancel()
 		_ = s.srv.Shutdown(shutdownCtx)
+		s.sessions.closeAll()
 		return <-errCh
 	case err := <-errCh:
+		s.sessions.closeAll()
 		return err
 	}
 }
diff --git a/internal/serve/session.go b/internal/serve/session.go
new file mode 100644
index 0000000..2324ea7
--- /dev/null
+++ b/internal/serve/session.go
@@ -0,0 +1,123 @@
+package serve
+
+import (
+	"encoding/json"
+	"errors"
+	"net/http"
+	"time"
+
+	"github.com/google/uuid"
+
+	"github.com/timescale/ghost/internal/serve/dbdriver"
+)
+
+// handleCreateSession serves POST /api/createSession. Opens a driver, stores
+// it as a Session, returns the assigned ID. Mirrors the
+// CreateSessionResponse shape from @popsql/types.
+func (s *Server) handleCreateSession(w http.ResponseWriter, r *http.Request) {
+	var req createSessionRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	w.Header().Set("Cache-Control", "no-store")
+	enc := json.NewEncoder(w)
+
+	if req.ProjectID != s.cfg.ProjectID {
+		_ = enc.Encode(createSessionResponse{
+			Success: false,
+			Error: &dbdriver.NormalizedError{
+				Message: "projectId does not match the active ghost project",
+				Source:  "ghost",
+			},
+		})
+		return
+	}
+
+	driver, err := openDriverForService(r.Context(), s.cfg.Client, req.ProjectID, req.ServiceID)
+	if err != nil {
+		ce := new(connectErr)
+		if errors.As(err, &ce) {
+			_ = enc.Encode(createSessionResponse{Success: false, Error: ce.Normalized()})
+		} else {
+			_ = enc.Encode(createSessionResponse{
+				Success: false,
+				Error: &dbdriver.NormalizedError{Message: err.Error(), Source: "ghost", Connect: true},
+			})
+		}
+		return
+	}
+
+	sess := &Session{
+		id:        uuid.NewString(),
+		projectID: req.ProjectID,
+		serviceID: req.ServiceID,
+		startedAt: time.Now(),
+		driver:    driver,
+		closed:    make(chan struct{}),
+	}
+	s.sessions.add(sess)
+
+	_ = enc.Encode(createSessionResponse{Success: true, ID: sess.id})
+}
+
+// handleCloseSession serves POST /api/closeSession. Cleanly tears down a
+// session's driver. Returns 204 on success, 404 if the session is unknown.
+func (s *Server) handleCloseSession(w http.ResponseWriter, r *http.Request) {
+	var req sessionRefRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		return
+	}
+	sess := s.sessions.get(req.SessionID)
+	if sess == nil {
+		http.NotFound(w, r)
+		return
+	}
+	sess.close(nil)
+	s.sessions.delete(req.SessionID)
+	w.WriteHeader(http.StatusNoContent)
+}
+
+// handleSessionEvents serves POST /api/sessionEvents. Long-lived NDJSON
+// stream: emits {"status":"connected"} immediately, then blocks until the
+// session is closed (or the request is canceled). The widget's
+// BaseSessionManager re-establishes this stream up to 15 times before giving
+// up; if it eventually 404s the widget treats the session as dead.
+func (s *Server) handleSessionEvents(w http.ResponseWriter, r *http.Request) {
+	var req sessionRefRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	sess := s.sessions.get(req.SessionID)
+	if sess == nil {
+		http.NotFound(w, r)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/x-ndjson")
+	w.Header().Set("Cache-Control", "no-store")
+	w.Header().Set("X-Accel-Buffering", "no")
+
+	enc := json.NewEncoder(w)
+	if err := enc.Encode(sessionEvent{Status: sessionStatusConnected}); err != nil {
+		return
+	}
+	flushWriter(w)
+
+	select {
+	case <-sess.closed:
+		if sess.closeErr != nil {
+			_ = enc.Encode(sessionEvent{Status: sessionStatusError, Error: sess.closeErr})
+		} else {
+			_ = enc.Encode(sessionEvent{Status: sessionStatusClosed})
+		}
+		flushWriter(w)
+	case <-r.Context().Done():
+		// Client disconnected; nothing to write. The widget will reconnect.
+	}
+}
diff --git a/internal/serve/store.go b/internal/serve/store.go
new file mode 100644
index 0000000..254d5ed
--- /dev/null
+++ b/internal/serve/store.go
@@ -0,0 +1,145 @@
+package serve
+
+import (
+	"context"
+	"sync"
+	"time"
+
+	"github.com/timescale/ghost/internal/serve/dbdriver"
+)
+
+// Run coordinates a single in-flight query between the executeQuery and
+// arrowResults handlers. The widget always fires both: executeQuery streams
+// a columns NDJSON line and then blocks on Run.done; arrowResults consumes
+// the rows + streams Arrow IPC, then closes Run.done so executeQuery can
+// emit the success/error terminator.
+type Run struct {
+	id        string
+	projectID string
+	serviceID string
+	startedAt time.Time
+
+	// driver is non-nil only when this Run owns the driver (one-shot mode).
+	// In session mode the driver is owned by the Session and reused across
+	// runs; we leave this nil so cleanup doesn't close it.
+	driver  dbdriver.Driver
+	rows    dbdriver.Rows
+	columns dbdriver.Columns
+
+	cancelQuery   context.CancelFunc
+	driverCleanup context.CancelFunc
+
+	queryCtx context.Context
+
+	ready chan struct{}
+	done  chan struct{}
+
+	rowCount     int64
+	rowsAffected *int64
+	err          *dbdriver.NormalizedError
+	errOnce      sync.Once
+}
+
+func (r *Run) setError(e *dbdriver.NormalizedError) {
+	r.errOnce.Do(func() { r.err = e })
+}
+
+func (r *Run) closeDone() {
+	select {
+	case <-r.done:
+	default:
+		close(r.done)
+	}
+}
+
+// runStore holds all in-flight runs keyed by their widget-generated run id.
+type runStore struct {
+	mu   sync.Mutex
+	runs map[string]*Run
+}
+
+func newRunStore() *runStore {
+	return &runStore{runs: make(map[string]*Run)}
+}
+
+func (s *runStore) add(r *Run) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.runs[r.id] = r
+}
+
+func (s *runStore) get(id string) *Run {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	return s.runs[id]
+}
+
+func (s *runStore) delete(id string) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	delete(s.runs, id)
+}
+
+// Session holds a long-lived driver across multiple queries from one widget
+// tab. Sessions live until /api/closeSession is invoked or the server shuts
+// down. There is no idle timeout for now.
+type Session struct {
+	id        string
+	projectID string
+	serviceID string
+	startedAt time.Time
+
+	driver dbdriver.Driver
+
+	closed    chan struct{}
+	closeErr  *dbdriver.NormalizedError
+	closeOnce sync.Once
+}
+
+func (s *Session) close(reason *dbdriver.NormalizedError) {
+	s.closeOnce.Do(func() {
+		s.closeErr = reason
+		close(s.closed)
+		if s.driver != nil {
+			_ = s.driver.Close()
+		}
+	})
+}
+
+// sessionStore holds active sessions.
+type sessionStore struct {
+	mu       sync.Mutex
+	sessions map[string]*Session
+}
+
+func newSessionStore() *sessionStore {
+	return &sessionStore{sessions: make(map[string]*Session)}
+}
+
+func (s *sessionStore) add(sess *Session) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.sessions[sess.id] = sess
+}
+
+func (s *sessionStore) get(id string) *Session {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	return s.sessions[id]
+}
+
+func (s *sessionStore) delete(id string) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	delete(s.sessions, id)
+}
+
+// closeAll terminates every session. Called when the server shuts down.
+func (s *sessionStore) closeAll() {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	for id, sess := range s.sessions {
+		sess.close(&dbdriver.NormalizedError{Message: "server shutting down", Source: "ghost", Fatal: true})
+		delete(s.sessions, id)
+	}
+}
diff --git a/internal/serve/wire.go b/internal/serve/wire.go
new file mode 100644
index 0000000..fffacb4
--- /dev/null
+++ b/internal/serve/wire.go
@@ -0,0 +1,112 @@
+package serve
+
+import (
+	"github.com/timescale/ghost/internal/serve/dbdriver"
+)
+
+// Wire-format types matching what @popsql/query-client's TimescaleQueryClient
+// sends to and expects back from the savannah gateway. Source:
+// popsql/packages/popsql-query-client/src/{TimescaleQueryClient,client}.ts.
+
+// executeQueryRequest matches TimescaleExecuteQueryRequest. The widget
+// emits both a top-level `query` field (legacy / unused in practice) and a
+// `statements` array containing the editor text split + trimmed by the
+// widget's own SQL parser. We prefer `statements` when present.
+type executeQueryRequest struct {
+	ProjectID  string   `json:"projectId"`
+	ServiceID  string   `json:"serviceId"`
+	Query      string   `json:"query"`
+	Statements []string `json:"statements"`
+	RunID      string   `json:"runId"`
+	Persist    bool     `json:"persist,omitempty"`
+	Timeout    *int64   `json:"timeout,omitempty"`
+}
+
+// SQL returns the effective query text to execute. Prefers the statements
+// array (widget's canonical field) and falls back to the raw query.
+func (r executeQueryRequest) SQL() string {
+	if len(r.Statements) > 0 {
+		joined := r.Statements[0]
+		for _, s := range r.Statements[1:] {
+			joined += "; " + s
+		}
+		return joined
+	}
+	return r.Query
+}
+
+// executeSessionQueryRequest matches TimescaleExecuteSessionQueryRequest.
+type executeSessionQueryRequest struct {
+	executeQueryRequest
+	SessionID string `json:"sessionId"`
+}
+
+// arrowResultsRequest matches TimescaleArrowResultsRequest.
+type arrowResultsRequest struct {
+	ProjectID string `json:"projectId"`
+	ServiceID string `json:"serviceId"`
+	RunID     string `json:"runId"`
+}
+
+// cancelQueryRequest matches TimescaleCancelQueryRequest.
+type cancelQueryRequest struct {
+	ProjectID string `json:"projectId"`
+	ServiceID string `json:"serviceId"`
+	RunID     string `json:"runId"`
+}
+
+// createSessionRequest matches TimescaleCreateSessionRequest.
+type createSessionRequest struct {
+	ProjectID string `json:"projectId"`
+	ServiceID string `json:"serviceId"`
+}
+
+// sessionRefRequest matches the body of closeSession/sessionEvents.
+type sessionRefRequest struct {
+	ProjectID string `json:"projectId"`
+	ServiceID string `json:"serviceId"`
+	SessionID string `json:"sessionId"`
+}
+
+// createSessionResponse matches CreateSessionResponse (one of two shapes).
+type createSessionResponse struct {
+	Success bool                       `json:"success"`
+	ID      string                     `json:"id,omitempty"`
+	Error   *dbdriver.NormalizedError  `json:"error,omitempty"`
+}
+
+// columnsResult is the first NDJSON line written by executeQuery. The widget
+// uses 'columns' as the discriminator.
+type columnsResult struct {
+	RunID    string            `json:"runId"`
+	Columns  dbdriver.Columns  `json:"columns"`
+	Metadata *dbdriver.Metadata `json:"meta,omitempty"`
+}
+
+// successResult is the final NDJSON line on a successful run.
+type successResult struct {
+	RunID        string `json:"runId"`
+	Success      bool   `json:"success"`
+	RowCount     int64  `json:"rowCount"`
+	RowsAffected *int64 `json:"rowsAffected,omitempty"`
+}
+
+// errorResult is the final NDJSON line on a failed (or canceled) run.
+type errorResult struct {
+	RunID   string                   `json:"runId"`
+	Success bool                     `json:"success"`
+	Error   *dbdriver.NormalizedError `json:"error"`
+}
+
+// sessionEvent matches the SessionEvent NDJSON line shape.
+type sessionEvent struct {
+	Status string                    `json:"status"`
+	Error  *dbdriver.NormalizedError `json:"error,omitempty"`
+}
+
+const (
+	sessionStatusConnecting = "connecting"
+	sessionStatusConnected  = "connected"
+	sessionStatusClosed     = "closed"
+	sessionStatusError      = "error"
+)
diff --git a/web/bun.lock b/web/bun.lock
index b73b38f..dfcc8cf 100644
--- a/web/bun.lock
+++ b/web/bun.lock
@@ -8,19 +8,20 @@
         "@tanstack/react-query": "^5.62.7",
         "@timescale/popsql-query-widget": "0.0.0-dev.156",
         "framer-motion": "^12.0.0",
-        "react": "^19.0.0",
-        "react-dom": "^19.0.0",
+        "react": "^18.3.1",
+        "react-dom": "^18.3.1",
       },
       "devDependencies": {
         "@types/node": "^22.10.0",
-        "@types/react": "^19.0.0",
-        "@types/react-dom": "^19.0.0",
+        "@types/react": "^18.3.0",
+        "@types/react-dom": "^18.3.0",
         "@vitejs/plugin-react": "^5.0.0",
         "autoprefixer": "^10.4.20",
         "postcss": "^8.4.49",
         "tailwindcss": "^3.4.17",
         "typescript": "^5.7.2",
         "vite": "^7.0.0",
+        "vite-plugin-node-polyfills": "^0.24.0",
       },
     },
   },
@@ -135,6 +136,10 @@
 
     "@rolldown/pluginutils": ["@rolldown/pluginutils@1.0.0-rc.3", "", {}, "sha512-eybk3TjzzzV97Dlj5c+XrBFW57eTNhzod66y9HrBlzJ6NsCrWCp/2kaPS3K9wJmurBC0Tdw4yPjXKZqlznim3Q=="],
 
+    "@rollup/plugin-inject": ["@rollup/plugin-inject@5.0.5", "", { "dependencies": { "@rollup/pluginutils": "^5.0.1", "estree-walker": "^2.0.2", "magic-string": "^0.30.3" }, "peerDependencies": { "rollup": "^1.20.0||^2.0.0||^3.0.0||^4.0.0" }, "optionalPeers": ["rollup"] }, "sha512-2+DEJbNBoPROPkgTDNe8/1YXWcqxbN5DTjASVIOx8HS+pITXushyNiBV56RB08zuptzz8gT3YfkqriTBVycepg=="],
+
+    "@rollup/pluginutils": ["@rollup/pluginutils@5.3.0", "", { "dependencies": { "@types/estree": "^1.0.0", "estree-walker": "^2.0.2", "picomatch": "^4.0.2" }, "peerDependencies": { "rollup": "^1.20.0||^2.0.0||^3.0.0||^4.0.0" }, "optionalPeers": ["rollup"] }, "sha512-5EdhGZtnu3V88ces7s53hhfK5KSASnJZv8Lulpc04cWO3REESroJXg73DFsOmgbU2BhwV0E20bu2IDZb3VKW4Q=="],
+
     "@rollup/rollup-android-arm-eabi": ["@rollup/rollup-android-arm-eabi@4.60.4", "", { "os": "android", "cpu": "arm" }, "sha512-F5QXMSiFebS9hKZj02XhWLLnRpJ3B3AROP0tWbFBSj+6kCbg5m9j5JoHKd4mmSVy5mS/IMQloYgYxCuJC0fxEQ=="],
 
     "@rollup/rollup-android-arm64": ["@rollup/rollup-android-arm64@4.60.4", "", { "os": "android", "cpu": "arm64" }, "sha512-GxxTKApUpzRhof7poWvCJHRF51C67u1R7D6DiluBE8wKU1u5GWE8t+v81JvJYtbawoBFX1hLv5Ei4eVjkWokaw=="],
@@ -203,9 +208,11 @@
 
     "@types/node": ["@types/node@22.19.19", "", { "dependencies": { "undici-types": "~6.21.0" } }, "sha512-dyh/xO2Fh5bYrfWaaqGrRQQGkNdmYw6AmaAUvYeUMNTWQtvb796ikLdmTchRmOlOiIJ1TDXfWgVx1QkUlQ6Hew=="],
 
-    "@types/react": ["@types/react@19.2.15", "", { "dependencies": { "csstype": "^3.2.2" } }, "sha512-eRwcGNHve+E8qtEQSSRl6urh+rFop4v8gm6O8rGv25CodbvFdLjA1vVQ1KkiFE0w0UPOnb8tDiFKL5lp0rtY5Q=="],
+    "@types/prop-types": ["@types/prop-types@15.7.15", "", {}, "sha512-F6bEyamV9jKGAFBEmlQnesRPGOQqS2+Uwi0Em15xenOxHaf2hv6L8YCVn3rPdPJOiJfPiCnLIRyvwVaqMY3MIw=="],
+
+    "@types/react": ["@types/react@18.3.29", "", { "dependencies": { "@types/prop-types": "*", "csstype": "^3.2.2" } }, "sha512-ch0qJdr2JY0r04NXSprbK6TXOgnaJ1Tz23fm5W+z0/CBah6BSBc3n96h7K9GOtwh0HrilNWHIBzE1Ko4Dcw/Wg=="],
 
-    "@types/react-dom": ["@types/react-dom@19.2.3", "", { "peerDependencies": { "@types/react": "^19.2.0" } }, "sha512-jp2L/eY6fn+KgVVQAOqYItbF0VY/YApe5Mz2F0aykSO8gx31bYCZyvSeYxCHKvzHG5eZjc+zyaS5BrBWya2+kQ=="],
+    "@types/react-dom": ["@types/react-dom@18.3.7", "", { "peerDependencies": { "@types/react": "^18.0.0" } }, "sha512-MEe3UeoENYVFXzoXEWsvcpg6ZvlrFNlOQ7EOsvhI3CfAXwzPfO8Qwuxd40nepsYKqyyVQnTdEfv68q91yLcKrQ=="],
 
     "@vitejs/plugin-react": ["@vitejs/plugin-react@5.2.0", "", { "dependencies": { "@babel/core": "^7.29.0", "@babel/plugin-transform-react-jsx-self": "^7.27.1", "@babel/plugin-transform-react-jsx-source": "^7.27.1", "@rolldown/pluginutils": "1.0.0-rc.3", "@types/babel__core": "^7.20.5", "react-refresh": "^0.18.0" }, "peerDependencies": { "vite": "^4.2.0 || ^5.0.0 || ^6.0.0 || ^7.0.0 || ^8.0.0" } }, "sha512-YmKkfhOAi3wsB1PhJq5Scj3GXMn3WvtQ/JC0xoopuHoXSdmtdStOpFrYaT1kie2YgFBcIe64ROzMYRjCrYOdYw=="],
 
@@ -215,44 +222,124 @@
 
     "arg": ["arg@5.0.2", "", {}, "sha512-PYjyFOLKQ9y57JvQ6QLo8dAgNqswh8M1RMJYdQduT6xbWSgK36P/Z/v+p888pM69jMMfS8Xd8F6I1kQ/I9HUGg=="],
 
+    "asn1.js": ["asn1.js@4.10.1", "", { "dependencies": { "bn.js": "^4.0.0", "inherits": "^2.0.1", "minimalistic-assert": "^1.0.0" } }, "sha512-p32cOF5q0Zqs9uBiONKYLm6BClCoBCM5O9JfeUSlnQLBTxYdTK+pW+nXflm8UkKd2UYlEbYz5qEi0JuZR9ckSw=="],
+
+    "assert": ["assert@2.1.0", "", { "dependencies": { "call-bind": "^1.0.2", "is-nan": "^1.3.2", "object-is": "^1.1.5", "object.assign": "^4.1.4", "util": "^0.12.5" } }, "sha512-eLHpSK/Y4nhMJ07gDaAzoX/XAKS8PSaojml3M0DM4JpV1LAi5JOJ/p6H/XWrl8L+DzVEvVCW1z3vWAaB9oTsQw=="],
+
     "autoprefixer": ["autoprefixer@10.5.0", "", { "dependencies": { "browserslist": "^4.28.2", "caniuse-lite": "^1.0.30001787", "fraction.js": "^5.3.4", "picocolors": "^1.1.1", "postcss-value-parser": "^4.2.0" }, "peerDependencies": { "postcss": "^8.1.0" }, "bin": { "autoprefixer": "bin/autoprefixer" } }, "sha512-FMhOoZV4+qR6aTUALKX2rEqGG+oyATvwBt9IIzVR5rMa2HRWPkxf+P+PAJLD1I/H5/II+HuZcBJYEFBpq39ong=="],
 
+    "available-typed-arrays": ["available-typed-arrays@1.0.7", "", { "dependencies": { "possible-typed-array-names": "^1.0.0" } }, "sha512-wvUjBtSGN7+7SjNpq/9M2Tg350UZD3q62IFZLbRAR1bSMlCo1ZaeW+BJ+D090e4hIIZLBcTDWe4Mh4jvUDajzQ=="],
+
+    "base64-js": ["base64-js@1.5.1", "", {}, "sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA=="],
+
     "baseline-browser-mapping": ["baseline-browser-mapping@2.10.32", "", { "bin": { "baseline-browser-mapping": "dist/cli.cjs" } }, "sha512-wbPvpyjJPC0zdfdKXxqEL3Ea+bOMD/87X4lftiJkkaBiuG6ALQy1SLmEd7BSmVCuwCQsBrCamgBoLyfFDD1EPg=="],
 
     "binary-extensions": ["binary-extensions@2.3.0", "", {}, "sha512-Ceh+7ox5qe7LJuLHoY0feh3pHuUDHAcRUeyL2VYghZwfpkNIy/+8Ocg0a3UuSoYzavmylwuLWQOf3hl0jjMMIw=="],
 
+    "bn.js": ["bn.js@5.2.3", "", {}, "sha512-EAcmnPkxpntVL+DS7bO1zhcZNvCkxqtkd0ZY53h06GNQ3DEkkGZ/gKgmDv6DdZQGj9BgfSPKtJJ7Dp1GPP8f7w=="],
+
     "braces": ["braces@3.0.3", "", { "dependencies": { "fill-range": "^7.1.1" } }, "sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA=="],
 
+    "brorand": ["brorand@1.1.0", "", {}, "sha512-cKV8tMCEpQs4hK/ik71d6LrPOnpkpGBR0wzxqr68g2m/LB2GxVYQroAjMJZRVM1Y4BCjCKc3vAamxSzOY2RP+w=="],
+
+    "browser-resolve": ["browser-resolve@2.0.0", "", { "dependencies": { "resolve": "^1.17.0" } }, "sha512-7sWsQlYL2rGLy2IWm8WL8DCTJvYLc/qlOnsakDac87SOoCd16WLsaAMdCiAqsTNHIe+SXfaqyxyo6THoWqs8WQ=="],
+
+    "browserify-aes": ["browserify-aes@1.2.0", "", { "dependencies": { "buffer-xor": "^1.0.3", "cipher-base": "^1.0.0", "create-hash": "^1.1.0", "evp_bytestokey": "^1.0.3", "inherits": "^2.0.1", "safe-buffer": "^5.0.1" } }, "sha512-+7CHXqGuspUn/Sl5aO7Ea0xWGAtETPXNSAjHo48JfLdPWcMng33Xe4znFvQweqc/uzk5zSOI3H52CYnjCfb5hA=="],
+
+    "browserify-cipher": ["browserify-cipher@1.0.1", "", { "dependencies": { "browserify-aes": "^1.0.4", "browserify-des": "^1.0.0", "evp_bytestokey": "^1.0.0" } }, "sha512-sPhkz0ARKbf4rRQt2hTpAHqn47X3llLkUGn+xEJzLjwY8LRs2p0v7ljvI5EyoRO/mexrNunNECisZs+gw2zz1w=="],
+
+    "browserify-des": ["browserify-des@1.0.2", "", { "dependencies": { "cipher-base": "^1.0.1", "des.js": "^1.0.0", "inherits": "^2.0.1", "safe-buffer": "^5.1.2" } }, "sha512-BioO1xf3hFwz4kc6iBhI3ieDFompMhrMlnDFC4/0/vd5MokpuAc3R+LYbwTA9A5Yc9pq9UYPqffKpW2ObuwX5A=="],
+
+    "browserify-rsa": ["browserify-rsa@4.1.1", "", { "dependencies": { "bn.js": "^5.2.1", "randombytes": "^2.1.0", "safe-buffer": "^5.2.1" } }, "sha512-YBjSAiTqM04ZVei6sXighu679a3SqWORA3qZTEqZImnlkDIFtKc6pNutpjyZ8RJTjQtuYfeetkxM11GwoYXMIQ=="],
+
+    "browserify-sign": ["browserify-sign@4.2.6", "", { "dependencies": { "bn.js": "^5.2.3", "browserify-rsa": "^4.1.1", "create-hash": "^1.2.0", "create-hmac": "^1.1.7", "elliptic": "^6.6.1", "inherits": "^2.0.4", "parse-asn1": "^5.1.9", "readable-stream": "^2.3.8", "safe-buffer": "^5.2.1" } }, "sha512-sd+Q65fjlWCYWtZKXiKfrUc8d+4jtp/8f0W2NkwzLtoW4bI6UDnWusLWIurHnmurW0XShIRxpwiOX4EoPtXUAg=="],
+
+    "browserify-zlib": ["browserify-zlib@0.2.0", "", { "dependencies": { "pako": "~1.0.5" } }, "sha512-Z942RysHXmJrhqk88FmKBVq/v5tqmSkDz7p54G/MGyjMnCFFnC79XWNbg+Vta8W6Wb2qtSZTSxIGkJrRpCFEiA=="],
+
     "browserslist": ["browserslist@4.28.2", "", { "dependencies": { "baseline-browser-mapping": "^2.10.12", "caniuse-lite": "^1.0.30001782", "electron-to-chromium": "^1.5.328", "node-releases": "^2.0.36", "update-browserslist-db": "^1.2.3" }, "bin": { "browserslist": "cli.js" } }, "sha512-48xSriZYYg+8qXna9kwqjIVzuQxi+KYWp2+5nCYnYKPTr0LvD89Jqk2Or5ogxz0NUMfIjhh2lIUX/LyX9B4oIg=="],
 
+    "buffer": ["buffer@5.7.1", "", { "dependencies": { "base64-js": "^1.3.1", "ieee754": "^1.1.13" } }, "sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ=="],
+
+    "buffer-xor": ["buffer-xor@1.0.3", "", {}, "sha512-571s0T7nZWK6vB67HI5dyUF7wXiNcfaPPPTl6zYCNApANjIvYJTg7hlud/+cJpdAhS7dVzqMLmfhfHR3rAcOjQ=="],
+
+    "builtin-status-codes": ["builtin-status-codes@3.0.0", "", {}, "sha512-HpGFw18DgFWlncDfjTa2rcQ4W88O1mC8e8yZ2AvQY5KDaktSTwo+KRf6nHK6FRI5FyRyb/5T6+TSxfP7QyGsmQ=="],
+
+    "call-bind": ["call-bind@1.0.9", "", { "dependencies": { "call-bind-apply-helpers": "^1.0.2", "es-define-property": "^1.0.1", "get-intrinsic": "^1.3.0", "set-function-length": "^1.2.2" } }, "sha512-a/hy+pNsFUTR+Iz8TCJvXudKVLAnz/DyeSUo10I5yvFDQJBFU2s9uqQpoSrJlroHUKoKqzg+epxyP9lqFdzfBQ=="],
+
+    "call-bind-apply-helpers": ["call-bind-apply-helpers@1.0.2", "", { "dependencies": { "es-errors": "^1.3.0", "function-bind": "^1.1.2" } }, "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ=="],
+
+    "call-bound": ["call-bound@1.0.4", "", { "dependencies": { "call-bind-apply-helpers": "^1.0.2", "get-intrinsic": "^1.3.0" } }, "sha512-+ys997U96po4Kx/ABpBCqhA9EuxJaQWDQg7295H4hBphv3IZg0boBKuwYpt4YXp6MZ5AmZQnU/tyMTlRpaSejg=="],
+
     "camelcase-css": ["camelcase-css@2.0.1", "", {}, "sha512-QOSvevhslijgYwRx6Rv7zKdMF8lbRmx+uQGx2+vDc+KI/eBnsy9kit5aj23AgGu3pa4t9AgwbnXWqS+iOY+2aA=="],
 
     "caniuse-lite": ["caniuse-lite@1.0.30001793", "", {}, "sha512-iwSsYWaCOoh26cV8NwNRViHlrfUvYsHDfRVcbtmw0Kg6PJIZZXwMkj1442FYLBGkeUf1juAsU3DTfxW579mrPA=="],
 
     "chokidar": ["chokidar@3.6.0", "", { "dependencies": { "anymatch": "~3.1.2", "braces": "~3.0.2", "glob-parent": "~5.1.2", "is-binary-path": "~2.1.0", "is-glob": "~4.0.1", "normalize-path": "~3.0.0", "readdirp": "~3.6.0" }, "optionalDependencies": { "fsevents": "~2.3.2" } }, "sha512-7VT13fmjotKpGipCW9JEQAusEPE+Ei8nl6/g4FBAmIm0GOOLMua9NDDo/DWp0ZAxCr3cPq5ZpBqmPAQgDda2Pw=="],
 
+    "cipher-base": ["cipher-base@1.0.7", "", { "dependencies": { "inherits": "^2.0.4", "safe-buffer": "^5.2.1", "to-buffer": "^1.2.2" } }, "sha512-Mz9QMT5fJe7bKI7MH31UilT5cEK5EHHRCccw/YRFsRY47AuNgaV6HY3rscp0/I4Q+tTW/5zoqpSeRRI54TkDWA=="],
+
     "commander": ["commander@4.1.1", "", {}, "sha512-NOKm8xhkzAjzFx8B2v5OAHT+u5pRQc2UCa2Vq9jYL/31o2wi9mxBA7LIFs3sV5VSC49z6pEhfbMULvShKj26WA=="],
 
+    "console-browserify": ["console-browserify@1.2.0", "", {}, "sha512-ZMkYO/LkF17QvCPqM0gxw8yUzigAOZOSWSHg91FH6orS7vcEj5dVZTidN2fQ14yBSdg97RqhSNwLUXInd52OTA=="],
+
+    "constants-browserify": ["constants-browserify@1.0.0", "", {}, "sha512-xFxOwqIzR/e1k1gLiWEophSCMqXcwVHIH7akf7b/vxcUeGunlj3hvZaaqxwHsTgn+IndtkQJgSztIDWeumWJDQ=="],
+
     "convert-source-map": ["convert-source-map@2.0.0", "", {}, "sha512-Kvp459HrV2FEJ1CAsi1Ku+MY3kasH19TFykTz2xWmMeq6bk2NU3XXvfJ+Q61m0xktWwt+1HSYf3JZsTms3aRJg=="],
 
+    "core-util-is": ["core-util-is@1.0.3", "", {}, "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ=="],
+
+    "create-ecdh": ["create-ecdh@4.0.4", "", { "dependencies": { "bn.js": "^4.1.0", "elliptic": "^6.5.3" } }, "sha512-mf+TCx8wWc9VpuxfP2ht0iSISLZnt0JgWlrOKZiNqyUZWnjIaCIVNQArMHnCZKfEYRg6IM7A+NeJoN8gf/Ws0A=="],
+
+    "create-hash": ["create-hash@1.2.0", "", { "dependencies": { "cipher-base": "^1.0.1", "inherits": "^2.0.1", "md5.js": "^1.3.4", "ripemd160": "^2.0.1", "sha.js": "^2.4.0" } }, "sha512-z00bCGNHDG8mHAkP7CtT1qVu+bFQUPjYq/4Iv3C3kWjTFV10zIjfSoeqXo9Asws8gwSHDGj/hl2u4OGIjapeCg=="],
+
+    "create-hmac": ["create-hmac@1.1.7", "", { "dependencies": { "cipher-base": "^1.0.3", "create-hash": "^1.1.0", "inherits": "^2.0.1", "ripemd160": "^2.0.0", "safe-buffer": "^5.0.1", "sha.js": "^2.4.8" } }, "sha512-MJG9liiZ+ogc4TzUwuvbER1JRdgvUFSB5+VR/g5h82fGaIRWMWddtKBHi7/sVhfjQZ6SehlyhvQYrcYkaUIpLg=="],
+
+    "create-require": ["create-require@1.1.1", "", {}, "sha512-dcKFX3jn0MpIaXjisoRvexIJVEKzaq7z2rZKxf+MSr9TkdmHmsU4m2lcLojrj/FHl8mk5VxMmYA+ftRkP/3oKQ=="],
+
+    "crypto-browserify": ["crypto-browserify@3.12.1", "", { "dependencies": { "browserify-cipher": "^1.0.1", "browserify-sign": "^4.2.3", "create-ecdh": "^4.0.4", "create-hash": "^1.2.0", "create-hmac": "^1.1.7", "diffie-hellman": "^5.0.3", "hash-base": "~3.0.4", "inherits": "^2.0.4", "pbkdf2": "^3.1.2", "public-encrypt": "^4.0.3", "randombytes": "^2.1.0", "randomfill": "^1.0.4" } }, "sha512-r4ESw/IlusD17lgQi1O20Fa3qNnsckR126TdUuBgAu7GBYSIPvdNyONd3Zrxh0xCwA4+6w/TDArBPsMvhur+KQ=="],
+
     "cssesc": ["cssesc@3.0.0", "", { "bin": { "cssesc": "bin/cssesc" } }, "sha512-/Tb/JcjK111nNScGob5MNtsntNM1aCNUDipB/TkwZFhyDrrE47SOx/18wF2bbjgc3ZzCSKW1T5nt5EbFoAz/Vg=="],
 
     "csstype": ["csstype@3.2.3", "", {}, "sha512-z1HGKcYy2xA8AGQfwrn0PAy+PB7X/GSj3UVJW9qKyn43xWa+gl5nXmU4qqLMRzWVLFC8KusUX8T/0kCiOYpAIQ=="],
 
     "debug": ["debug@4.4.3", "", { "dependencies": { "ms": "^2.1.3" } }, "sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA=="],
 
+    "define-data-property": ["define-data-property@1.1.4", "", { "dependencies": { "es-define-property": "^1.0.0", "es-errors": "^1.3.0", "gopd": "^1.0.1" } }, "sha512-rBMvIzlpA8v6E+SJZoo++HAYqsLrkg7MSfIinMPFhmkorw7X+dOXVJQs+QT69zGkzMyfDnIMN2Wid1+NbL3T+A=="],
+
+    "define-properties": ["define-properties@1.2.1", "", { "dependencies": { "define-data-property": "^1.0.1", "has-property-descriptors": "^1.0.0", "object-keys": "^1.1.1" } }, "sha512-8QmQKqEASLd5nx0U1B1okLElbUuuttJ/AnYmRXbbbGDWh6uS208EjD4Xqq/I9wK7u0v6O08XhTWnt5XtEbR6Dg=="],
+
+    "des.js": ["des.js@1.1.0", "", { "dependencies": { "inherits": "^2.0.1", "minimalistic-assert": "^1.0.0" } }, "sha512-r17GxjhUCjSRy8aiJpr8/UadFIzMzJGexI3Nmz4ADi9LYSFx4gTBp80+NaX/YsXWWLhpZ7v/v/ubEc/bCNfKwg=="],
+
     "didyoumean": ["didyoumean@1.2.2", "", {}, "sha512-gxtyfqMg7GKyhQmb056K7M3xszy/myH8w+B4RT+QXBQsvAOdc3XymqDDPHx1BgPgsdAA5SIifona89YtRATDzw=="],
 
+    "diffie-hellman": ["diffie-hellman@5.0.3", "", { "dependencies": { "bn.js": "^4.1.0", "miller-rabin": "^4.0.0", "randombytes": "^2.0.0" } }, "sha512-kqag/Nl+f3GwyK25fhUMYj81BUOrZ9IuJsjIcDE5icNM9FJHAVm3VcUDxdLPoQtTuUylWm6ZIknYJwwaPxsUzg=="],
+
     "dlv": ["dlv@1.1.3", "", {}, "sha512-+HlytyjlPKnIG8XuRG8WvmBP8xs8P71y+SKKS6ZXWoEgLuePxtDoUEiH7WkdePWrQ5JBpE6aoVqfZfJUQkjXwA=="],
 
+    "domain-browser": ["domain-browser@4.22.0", "", {}, "sha512-IGBwjF7tNk3cwypFNH/7bfzBcgSCbaMOD3GsaY1AU/JRrnHnYgEM0+9kQt52iZxjNsjBtJYtao146V+f8jFZNw=="],
+
+    "dunder-proto": ["dunder-proto@1.0.1", "", { "dependencies": { "call-bind-apply-helpers": "^1.0.1", "es-errors": "^1.3.0", "gopd": "^1.2.0" } }, "sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A=="],
+
     "electron-to-chromium": ["electron-to-chromium@1.5.363", "", {}, "sha512-VjUKPyWzGnT1fujlkEGC/BvN70Hh70KXtAqcmniXviYlJC/ivcT+BWGPyxWVbJZLfvtKR6dqg1L7T7pgAMBtWA=="],
 
+    "elliptic": ["elliptic@6.6.1", "", { "dependencies": { "bn.js": "^4.11.9", "brorand": "^1.1.0", "hash.js": "^1.0.0", "hmac-drbg": "^1.0.1", "inherits": "^2.0.4", "minimalistic-assert": "^1.0.1", "minimalistic-crypto-utils": "^1.0.1" } }, "sha512-RaddvvMatK2LJHqFJ+YA4WysVN5Ita9E35botqIYspQ4TkRAlCicdzKOjlyv/1Za5RyTNn7di//eEV0uTAfe3g=="],
+
+    "es-define-property": ["es-define-property@1.0.1", "", {}, "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g=="],
+
     "es-errors": ["es-errors@1.3.0", "", {}, "sha512-Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw=="],
 
+    "es-object-atoms": ["es-object-atoms@1.1.2", "", { "dependencies": { "es-errors": "^1.3.0" } }, "sha512-HWcBoN6NileqtSydK2FqHbS/LoDd2pqrnQHLyJzBj4kOp/ky2MWMN694xOfkK8/SnUsW2DH7EfyVlydKCsm1Zw=="],
+
     "esbuild": ["esbuild@0.27.7", "", { "optionalDependencies": { "@esbuild/aix-ppc64": "0.27.7", "@esbuild/android-arm": "0.27.7", "@esbuild/android-arm64": "0.27.7", "@esbuild/android-x64": "0.27.7", "@esbuild/darwin-arm64": "0.27.7", "@esbuild/darwin-x64": "0.27.7", "@esbuild/freebsd-arm64": "0.27.7", "@esbuild/freebsd-x64": "0.27.7", "@esbuild/linux-arm": "0.27.7", "@esbuild/linux-arm64": "0.27.7", "@esbuild/linux-ia32": "0.27.7", "@esbuild/linux-loong64": "0.27.7", "@esbuild/linux-mips64el": "0.27.7", "@esbuild/linux-ppc64": "0.27.7", "@esbuild/linux-riscv64": "0.27.7", "@esbuild/linux-s390x": "0.27.7", "@esbuild/linux-x64": "0.27.7", "@esbuild/netbsd-arm64": "0.27.7", "@esbuild/netbsd-x64": "0.27.7", "@esbuild/openbsd-arm64": "0.27.7", "@esbuild/openbsd-x64": "0.27.7", "@esbuild/openharmony-arm64": "0.27.7", "@esbuild/sunos-x64": "0.27.7", "@esbuild/win32-arm64": "0.27.7", "@esbuild/win32-ia32": "0.27.7", "@esbuild/win32-x64": "0.27.7" }, "bin": { "esbuild": "bin/esbuild" } }, "sha512-IxpibTjyVnmrIQo5aqNpCgoACA/dTKLTlhMHihVHhdkxKyPO1uBBthumT0rdHmcsk9uMonIWS0m4FljWzILh3w=="],
 
     "escalade": ["escalade@3.2.0", "", {}, "sha512-WUj2qlxaQtO4g6Pq5c29GTcWGDyd8itL8zTlipgECz3JesAiiOKotd8JU6otB3PACgG6xkJUyVhboMS+bje/jA=="],
 
+    "estree-walker": ["estree-walker@2.0.2", "", {}, "sha512-Rfkk/Mp/DL7JVje3u18FxFujQlTNR2q6QfMSMB7AvCBx91NGj/ba3kCfza0f6dVDbw7YlRf/nDrn7pQrCCyQ/w=="],
+
+    "events": ["events@3.3.0", "", {}, "sha512-mQw+2fkQbALzQ7V0MY0IqdnXNOeTtP4r0lN9z7AAawCXgqea7bDii20AYrIBrFd/Hx0M2Ocz6S111CaFkUcb0Q=="],
+
+    "evp_bytestokey": ["evp_bytestokey@1.0.3", "", { "dependencies": { "md5.js": "^1.3.4", "safe-buffer": "^5.1.1" } }, "sha512-/f2Go4TognH/KvCISP7OUsHn85hT9nUkxxA9BEWxFn+Oj9o8ZNLm/40hdlgSLyuOimsrTKLUMEorQexp/aPQeA=="],
+
     "fast-glob": ["fast-glob@3.3.3", "", { "dependencies": { "@nodelib/fs.stat": "^2.0.2", "@nodelib/fs.walk": "^1.2.3", "glob-parent": "^5.1.2", "merge2": "^1.3.0", "micromatch": "^4.0.8" } }, "sha512-7MptL8U0cqcFdzIzwOTHoilX9x5BrNqye7Z/LuC7kCMRio1EMSyqRK3BEAUD7sXRq4iT4AzTVuZdhgQ2TCvYLg=="],
 
     "fastq": ["fastq@1.20.1", "", { "dependencies": { "reusify": "^1.0.4" } }, "sha512-GGToxJ/w1x32s/D2EKND7kTil4n8OVk/9mycTc4VDza13lOvpUZTGX3mFSCtV9ksdGBVzvsyAVLM6mHFThxXxw=="],
@@ -261,6 +348,10 @@
 
     "fill-range": ["fill-range@7.1.1", "", { "dependencies": { "to-regex-range": "^5.0.1" } }, "sha512-YsGpe3WHLK8ZYi4tWDg2Jy3ebRz2rXowDxnld4bkQB00cc/1Zw9AWnC0i9ztDJitivtQvaI9KaLyKrc+hBW0yg=="],
 
+    "find-up": ["find-up@5.0.0", "", { "dependencies": { "locate-path": "^6.0.0", "path-exists": "^4.0.0" } }, "sha512-78/PXT1wlLLDgTzDs7sjq9hzz0vXD+zn+7wypEe4fXQxCmdmqfGsEPQxmiCSQI3ajFV91bVSsvNtrJRiW6nGng=="],
+
+    "for-each": ["for-each@0.3.5", "", { "dependencies": { "is-callable": "^1.2.7" } }, "sha512-dKx12eRCVIzqCxFGplyFKJMPvLEWgmNtUrpTiJIR5u97zEhRG8ySrtboPHZXx7daLxQVrl643cTzbab2tkQjxg=="],
+
     "fraction.js": ["fraction.js@5.3.4", "", {}, "sha512-1X1NTtiJphryn/uLQz3whtY6jK3fTqoE3ohKs0tT+Ujr1W59oopxmoEh7Lu5p6vBaPbgoM0bzveAW4Qi5RyWDQ=="],
 
     "framer-motion": ["framer-motion@12.40.0", "", { "dependencies": { "motion-dom": "^12.40.0", "motion-utils": "^12.39.0", "tslib": "^2.4.0" }, "peerDependencies": { "@emotion/is-prop-valid": "*", "react": "^18.0.0 || ^19.0.0", "react-dom": "^18.0.0 || ^19.0.0" }, "optionalPeers": ["@emotion/is-prop-valid", "react", "react-dom"] }, "sha512-uaBd3qC1v3KQqBEjwTUd183K6PbS+j0yR9w9VmEOLWA/tnUcSn8Xa3uck7t4dgpDoUss8xQTcj8W2L07lrnLFg=="],
@@ -269,22 +360,64 @@
 
     "function-bind": ["function-bind@1.1.2", "", {}, "sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA=="],
 
+    "generator-function": ["generator-function@2.0.1", "", {}, "sha512-SFdFmIJi+ybC0vjlHN0ZGVGHc3lgE0DxPAT0djjVg+kjOnSqclqmj0KQ7ykTOLP6YxoqOvuAODGdcHJn+43q3g=="],
+
     "gensync": ["gensync@1.0.0-beta.2", "", {}, "sha512-3hN7NaskYvMDLQY55gnW3NQ+mesEAepTqlg+VEbj7zzqEMBVNhzcGYYeqFo/TlYz6eQiFcp1HcsCZO+nGgS8zg=="],
 
+    "get-intrinsic": ["get-intrinsic@1.3.0", "", { "dependencies": { "call-bind-apply-helpers": "^1.0.2", "es-define-property": "^1.0.1", "es-errors": "^1.3.0", "es-object-atoms": "^1.1.1", "function-bind": "^1.1.2", "get-proto": "^1.0.1", "gopd": "^1.2.0", "has-symbols": "^1.1.0", "hasown": "^2.0.2", "math-intrinsics": "^1.1.0" } }, "sha512-9fSjSaos/fRIVIp+xSJlE6lfwhES7LNtKaCBIamHsjr2na1BiABJPo0mOjjz8GJDURarmCPGqaiVg5mfjb98CQ=="],
+
+    "get-proto": ["get-proto@1.0.1", "", { "dependencies": { "dunder-proto": "^1.0.1", "es-object-atoms": "^1.0.0" } }, "sha512-sTSfBjoXBp89JvIKIefqw7U2CCebsc74kiY6awiGogKtoSGbgjYE/G/+l9sF3MWFPNc9IcoOC4ODfKHfxFmp0g=="],
+
     "glob-parent": ["glob-parent@6.0.2", "", { "dependencies": { "is-glob": "^4.0.3" } }, "sha512-XxwI8EOhVQgWp6iDL+3b0r86f4d6AX6zSU55HfB4ydCEuXLXc5FcYeOu+nnGftS4TEju/11rt4KJPTMgbfmv4A=="],
 
+    "gopd": ["gopd@1.2.0", "", {}, "sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg=="],
+
+    "has-property-descriptors": ["has-property-descriptors@1.0.2", "", { "dependencies": { "es-define-property": "^1.0.0" } }, "sha512-55JNKuIW+vq4Ke1BjOTjM2YctQIvCT7GFzHwmfZPGo5wnrgkid0YQtnAleFSqumZm4az3n2BS+erby5ipJdgrg=="],
+
+    "has-symbols": ["has-symbols@1.1.0", "", {}, "sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ=="],
+
+    "has-tostringtag": ["has-tostringtag@1.0.2", "", { "dependencies": { "has-symbols": "^1.0.3" } }, "sha512-NqADB8VjPFLM2V0VvHUewwwsw0ZWBaIdgo+ieHtK3hasLz4qeCRjYcqfB6AQrBggRKppKF8L52/VqdVsO47Dlw=="],
+
+    "hash-base": ["hash-base@3.0.5", "", { "dependencies": { "inherits": "^2.0.4", "safe-buffer": "^5.2.1" } }, "sha512-vXm0l45VbcHEVlTCzs8M+s0VeYsB2lnlAaThoLKGXr3bE/VWDOelNUnycUPEhKEaXARL2TEFjBOyUiM6+55KBg=="],
+
+    "hash.js": ["hash.js@1.1.7", "", { "dependencies": { "inherits": "^2.0.3", "minimalistic-assert": "^1.0.1" } }, "sha512-taOaskGt4z4SOANNseOviYDvjEJinIkRgmp7LbKP2YTTmVxWBl87s/uzK9r+44BclBSp2X7K1hqeNfz9JbBeXA=="],
+
     "hasown": ["hasown@2.0.4", "", { "dependencies": { "function-bind": "^1.1.2" } }, "sha512-T2UbfbBEF32wiepXIsMlTW9+dDYC6wMh/t/vYA4tuOMKqWz/n3vr1NFSxQiyP+zk2mXsoMA/i/7qV6LKut1t1A=="],
 
+    "hmac-drbg": ["hmac-drbg@1.0.1", "", { "dependencies": { "hash.js": "^1.0.3", "minimalistic-assert": "^1.0.0", "minimalistic-crypto-utils": "^1.0.1" } }, "sha512-Tti3gMqLdZfhOQY1Mzf/AanLiqh1WTiJgEj26ZuYQ9fbkLomzGchCws4FyrSd4VkpBfiNhaE1On+lOz894jvXg=="],
+
+    "https-browserify": ["https-browserify@1.0.0", "", {}, "sha512-J+FkSdyD+0mA0N+81tMotaRMfSL9SGi+xpD3T6YApKsc3bGSXJlfXri3VyFOeYkfLRQisDk1W+jIFFKBeUBbBg=="],
+
+    "ieee754": ["ieee754@1.2.1", "", {}, "sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA=="],
+
+    "inherits": ["inherits@2.0.4", "", {}, "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="],
+
+    "is-arguments": ["is-arguments@1.2.0", "", { "dependencies": { "call-bound": "^1.0.2", "has-tostringtag": "^1.0.2" } }, "sha512-7bVbi0huj/wrIAOzb8U1aszg9kdi3KN/CyU19CTI7tAoZYEZoL9yCDXpbXN+uPsuWnP02cyug1gleqq+TU+YCA=="],
+
     "is-binary-path": ["is-binary-path@2.1.0", "", { "dependencies": { "binary-extensions": "^2.0.0" } }, "sha512-ZMERYes6pDydyuGidse7OsHxtbI7WVeUEozgR/g7rd0xUimYNlvZRE/K2MgZTjWy725IfelLeVcEM97mmtRGXw=="],
 
+    "is-callable": ["is-callable@1.2.7", "", {}, "sha512-1BC0BVFhS/p0qtw6enp8e+8OD0UrK0oFLztSjNzhcKA3WDuJxxAPXzPuPtKkjEY9UUoEWlX/8fgKeu2S8i9JTA=="],
+
     "is-core-module": ["is-core-module@2.16.2", "", { "dependencies": { "hasown": "^2.0.3" } }, "sha512-evOr8xfXKxE6qSR0hSXL2r3sd7ALj8+7jQEUvPYcm5sgZFdJ+AYzT6yNmJenvIYQBgIGwfwz08sL8zoL7yq2BA=="],
 
     "is-extglob": ["is-extglob@2.1.1", "", {}, "sha512-SbKbANkN603Vi4jEZv49LeVJMn4yGwsbzZworEoyEiutsN3nJYdbO36zfhGJ6QEDpOZIFkDtnq5JRxmvl3jsoQ=="],
 
+    "is-generator-function": ["is-generator-function@1.1.2", "", { "dependencies": { "call-bound": "^1.0.4", "generator-function": "^2.0.0", "get-proto": "^1.0.1", "has-tostringtag": "^1.0.2", "safe-regex-test": "^1.1.0" } }, "sha512-upqt1SkGkODW9tsGNG5mtXTXtECizwtS2kA161M+gJPc1xdb/Ax629af6YrTwcOeQHbewrPNlE5Dx7kzvXTizA=="],
+
     "is-glob": ["is-glob@4.0.3", "", { "dependencies": { "is-extglob": "^2.1.1" } }, "sha512-xelSayHH36ZgE7ZWhli7pW34hNbNl8Ojv5KVmkJD4hBdD3th8Tfk9vYasLM+mXWOZhFkgZfxhLSnrwRr4elSSg=="],
 
+    "is-nan": ["is-nan@1.3.2", "", { "dependencies": { "call-bind": "^1.0.0", "define-properties": "^1.1.3" } }, "sha512-E+zBKpQ2t6MEo1VsonYmluk9NxGrbzpeeLC2xIViuO2EjU2xsXsBPwTr3Ykv9l08UYEVEdWeRZNouaZqF6RN0w=="],
+
     "is-number": ["is-number@7.0.0", "", {}, "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng=="],
 
+    "is-regex": ["is-regex@1.2.1", "", { "dependencies": { "call-bound": "^1.0.2", "gopd": "^1.2.0", "has-tostringtag": "^1.0.2", "hasown": "^2.0.2" } }, "sha512-MjYsKHO5O7mCsmRGxWcLWheFqN9DJ/2TmngvjKXihe6efViPqc274+Fx/4fYj/r03+ESvBdTXK0V6tA3rgez1g=="],
+
+    "is-typed-array": ["is-typed-array@1.1.15", "", { "dependencies": { "which-typed-array": "^1.1.16" } }, "sha512-p3EcsicXjit7SaskXHs1hA91QxgTw46Fv6EFKKGS5DRFLD8yKnohjF3hxoju94b/OcMZoQukzpPpBE9uLVKzgQ=="],
+
+    "isarray": ["isarray@1.0.0", "", {}, "sha512-VLghIWNM6ELQzo7zwmcg0NmTVyWKYjvIeM83yjp0wRDTmUnrM678fQbcKBo6n2CJEF0szoG//ytg+TKla89ALQ=="],
+
+    "isomorphic-timers-promises": ["isomorphic-timers-promises@1.0.1", "", {}, "sha512-u4sej9B1LPSxTGKB/HiuzvEQnXH0ECYkSVQU39koSwmFAxhlEAFl9RdTvLv4TOTQUgBS5O3O5fwUxk6byBZ+IQ=="],
+
     "jiti": ["jiti@1.21.7", "", { "bin": { "jiti": "bin/jiti.js" } }, "sha512-/imKNG4EbWNrVjoNC/1H5/9GFy+tqjGBHCaSsN+P2RnPqjsLmv6UD3Ej+Kj8nBWaRAwyk7kK5ZUc+OEatnTR3A=="],
 
     "js-tokens": ["js-tokens@4.0.0", "", {}, "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ=="],
@@ -297,12 +430,28 @@
 
     "lines-and-columns": ["lines-and-columns@1.2.4", "", {}, "sha512-7ylylesZQ/PV29jhEDl3Ufjo6ZX7gCqJr5F7PKrqc93v7fzSymt1BpwEU8nAUXs8qzzvqhbjhK5QZg6Mt/HkBg=="],
 
+    "locate-path": ["locate-path@6.0.0", "", { "dependencies": { "p-locate": "^5.0.0" } }, "sha512-iPZK6eYjbxRu3uB4/WZ3EsEIMJFMqAoopl3R+zuq0UjcAm/MO6KCweDgPfP3elTztoKP3KtnVHxTn2NHBSDVUw=="],
+
+    "loose-envify": ["loose-envify@1.4.0", "", { "dependencies": { "js-tokens": "^3.0.0 || ^4.0.0" }, "bin": { "loose-envify": "cli.js" } }, "sha512-lyuxPGr/Wfhrlem2CL/UcnUc1zcqKAImBDzukY7Y5F/yQiNdko6+fRLevlw1HgMySw7f611UIY408EtxRSoK3Q=="],
+
     "lru-cache": ["lru-cache@5.1.1", "", { "dependencies": { "yallist": "^3.0.2" } }, "sha512-KpNARQA3Iwv+jTA0utUVVbrh+Jlrr1Fv0e56GGzAFOXN7dk/FviaDW8LHmK52DlcH4WP2n6gI8vN1aesBFgo9w=="],
 
+    "magic-string": ["magic-string@0.30.21", "", { "dependencies": { "@jridgewell/sourcemap-codec": "^1.5.5" } }, "sha512-vd2F4YUyEXKGcLHoq+TEyCjxueSeHnFxyyjNp80yg0XV4vUhnDer/lvvlqM/arB5bXQN5K2/3oinyCRyx8T2CQ=="],
+
+    "math-intrinsics": ["math-intrinsics@1.1.0", "", {}, "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g=="],
+
+    "md5.js": ["md5.js@1.3.5", "", { "dependencies": { "hash-base": "^3.0.0", "inherits": "^2.0.1", "safe-buffer": "^5.1.2" } }, "sha512-xitP+WxNPcTTOgnTJcrhM0xvdPepipPSf3I8EIpGKeFLjt3PlJLIDG3u8EX53ZIubkb+5U2+3rELYpEhHhzdkg=="],
+
     "merge2": ["merge2@1.4.1", "", {}, "sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg=="],
 
     "micromatch": ["micromatch@4.0.8", "", { "dependencies": { "braces": "^3.0.3", "picomatch": "^2.3.1" } }, "sha512-PXwfBhYu0hBCPw8Dn0E+WDYb7af3dSLVWKi3HGv84IdF4TyFoC0ysxFd0Goxw7nSv4T/PzEJQxsYsEiFCKo2BA=="],
 
+    "miller-rabin": ["miller-rabin@4.0.1", "", { "dependencies": { "bn.js": "^4.0.0", "brorand": "^1.0.1" }, "bin": { "miller-rabin": "bin/miller-rabin" } }, "sha512-115fLhvZVqWwHPbClyntxEVfVDfl9DLLTuJvq3g2O/Oxi8AiNouAHvDSzHS0viUJc+V5vm3eq91Xwqn9dp4jRA=="],
+
+    "minimalistic-assert": ["minimalistic-assert@1.0.1", "", {}, "sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A=="],
+
+    "minimalistic-crypto-utils": ["minimalistic-crypto-utils@1.0.1", "", {}, "sha512-JIYlbt6g8i5jKfJ3xz7rF0LXmv2TkDxBLUkiBeZ7bAx4GnnNMr8xFpGnOxn6GhTEHx3SjRrZEoU+j04prX1ktg=="],
+
     "motion-dom": ["motion-dom@12.40.0", "", { "dependencies": { "motion-utils": "^12.39.0" } }, "sha512-HxU3ZaBwNPVQUBQf1xxgq+7JrPNZvjLVxgbpEZL7RrWJnsxOf0/OM+yrHG9ogLQ31Do/r57Oz2gQWPK+6q62mg=="],
 
     "motion-utils": ["motion-utils@12.39.0", "", {}, "sha512-8nadJAJjTtqRkmRF36FoJTrywK9nnFmnPwnSMyxaOCU7GDjN9RTMJIxx9De8ErM+vpPhMccr/6fo5WciyQLnMQ=="],
@@ -315,14 +464,40 @@
 
     "node-releases": ["node-releases@2.0.46", "", {}, "sha512-GYVXHE2KnrzAfsAjl4uP++evGFCrAU1jta4ubEjIG7YWt/64Gqv66a30yKwWczVjA6j3bM4nBwH7Pk1JmDHaxQ=="],
 
+    "node-stdlib-browser": ["node-stdlib-browser@1.3.1", "", { "dependencies": { "assert": "^2.0.0", "browser-resolve": "^2.0.0", "browserify-zlib": "^0.2.0", "buffer": "^5.7.1", "console-browserify": "^1.1.0", "constants-browserify": "^1.0.0", "create-require": "^1.1.1", "crypto-browserify": "^3.12.1", "domain-browser": "4.22.0", "events": "^3.0.0", "https-browserify": "^1.0.0", "isomorphic-timers-promises": "^1.0.1", "os-browserify": "^0.3.0", "path-browserify": "^1.0.1", "pkg-dir": "^5.0.0", "process": "^0.11.10", "punycode": "^1.4.1", "querystring-es3": "^0.2.1", "readable-stream": "^3.6.0", "stream-browserify": "^3.0.0", "stream-http": "^3.2.0", "string_decoder": "^1.0.0", "timers-browserify": "^2.0.4", "tty-browserify": "0.0.1", "url": "^0.11.4", "util": "^0.12.4", "vm-browserify": "^1.0.1" } }, "sha512-X75ZN8DCLftGM5iKwoYLA3rjnrAEs97MkzvSd4q2746Tgpg8b8XWiBGiBG4ZpgcAqBgtgPHTiAc8ZMCvZuikDw=="],
+
     "normalize-path": ["normalize-path@3.0.0", "", {}, "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA=="],
 
     "object-assign": ["object-assign@4.1.1", "", {}, "sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg=="],
 
     "object-hash": ["object-hash@3.0.0", "", {}, "sha512-RSn9F68PjH9HqtltsSnqYC1XXoWe9Bju5+213R98cNGttag9q9yAOTzdbsqvIa7aNm5WffBZFpWYr2aWrklWAw=="],
 
+    "object-inspect": ["object-inspect@1.13.4", "", {}, "sha512-W67iLl4J2EXEGTbfeHCffrjDfitvLANg0UlX3wFUUSTx92KXRFegMHUVgSqE+wvhAbi4WqjGg9czysTV2Epbew=="],
+
+    "object-is": ["object-is@1.1.6", "", { "dependencies": { "call-bind": "^1.0.7", "define-properties": "^1.2.1" } }, "sha512-F8cZ+KfGlSGi09lJT7/Nd6KJZ9ygtvYC0/UYYLI9nmQKLMnydpB9yvbv9K1uSkEu7FU9vYPmVwLg328tX+ot3Q=="],
+
+    "object-keys": ["object-keys@1.1.1", "", {}, "sha512-NuAESUOUMrlIXOfHKzD6bpPu3tYt3xvjNdRIQ+FeT0lNb4K8WR70CaDxhuNguS2XG+GjkyMwOzsN5ZktImfhLA=="],
+
+    "object.assign": ["object.assign@4.1.7", "", { "dependencies": { "call-bind": "^1.0.8", "call-bound": "^1.0.3", "define-properties": "^1.2.1", "es-object-atoms": "^1.0.0", "has-symbols": "^1.1.0", "object-keys": "^1.1.1" } }, "sha512-nK28WOo+QIjBkDduTINE4JkF/UJJKyf2EJxvJKfblDpyg0Q+pkOHNTL0Qwy6NP6FhE/EnzV73BxxqcJaXY9anw=="],
+
+    "os-browserify": ["os-browserify@0.3.0", "", {}, "sha512-gjcpUc3clBf9+210TRaDWbf+rZZZEshZ+DlXMRCeAjp0xhTrnQsKHypIy1J3d5hKdUzj69t708EHtU8P6bUn0A=="],
+
+    "p-limit": ["p-limit@3.1.0", "", { "dependencies": { "yocto-queue": "^0.1.0" } }, "sha512-TYOanM3wGwNGsZN2cVTYPArw454xnXj5qmWF1bEoAc4+cU/ol7GVh7odevjp1FNHduHc3KZMcFduxU5Xc6uJRQ=="],
+
+    "p-locate": ["p-locate@5.0.0", "", { "dependencies": { "p-limit": "^3.0.2" } }, "sha512-LaNjtRWUBY++zB5nE/NwcaoMylSPk+S+ZHNB1TzdbMJMny6dynpAGt7X/tl/QYq3TIeE6nxHppbo2LGymrG5Pw=="],
+
+    "pako": ["pako@1.0.11", "", {}, "sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw=="],
+
+    "parse-asn1": ["parse-asn1@5.1.9", "", { "dependencies": { "asn1.js": "^4.10.1", "browserify-aes": "^1.2.0", "evp_bytestokey": "^1.0.3", "pbkdf2": "^3.1.5", "safe-buffer": "^5.2.1" } }, "sha512-fIYNuZ/HastSb80baGOuPRo1O9cf4baWw5WsAp7dBuUzeTD/BoaG8sVTdlPFksBE2lF21dN+A1AnrpIjSWqHHg=="],
+
+    "path-browserify": ["path-browserify@1.0.1", "", {}, "sha512-b7uo2UCUOYZcnF/3ID0lulOJi/bafxa1xPe7ZPsammBSpjSWQkjNxlt635YGS2MiR9GjvuXCtz2emr3jbsz98g=="],
+
+    "path-exists": ["path-exists@4.0.0", "", {}, "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w=="],
+
     "path-parse": ["path-parse@1.0.7", "", {}, "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw=="],
 
+    "pbkdf2": ["pbkdf2@3.1.6", "", { "dependencies": { "create-hash": "^1.2.0", "create-hmac": "^1.1.7", "ripemd160": "^2.0.3", "safe-buffer": "^5.2.1", "sha.js": "^2.4.12", "to-buffer": "^1.2.2" } }, "sha512-BT6eelPB1EyGHo8pC0o9Bl6k6SYVhKO1jEbd3lcTrtr7XHdjP8BW1YpfCV3G9Kwkxgattk+S5q2/RvuttCsS1g=="],
+
     "picocolors": ["picocolors@1.1.1", "", {}, "sha512-xceH2snhtb5M9liqDsmEw56le376mTZkEX/jEb/RxNFyegNul7eNslCXP9FDj/Lcu0X8KEyMceP2ntpaHrDEVA=="],
 
     "picomatch": ["picomatch@4.0.4", "", {}, "sha512-QP88BAKvMam/3NxH6vj2o21R6MjxZUAd6nlwAS/pnGvN9IVLocLHxGYIzFhg6fUQ+5th6P4dv4eW9jX3DSIj7A=="],
@@ -331,6 +506,10 @@
 
     "pirates": ["pirates@4.0.7", "", {}, "sha512-TfySrs/5nm8fQJDcBDuUng3VOUKsd7S+zqvbOTiGXHfxX4wK31ard+hoNuvkicM/2YFzlpDgABOevKSsB4G/FA=="],
 
+    "pkg-dir": ["pkg-dir@5.0.0", "", { "dependencies": { "find-up": "^5.0.0" } }, "sha512-NPE8TDbzl/3YQYY7CSS228s3g2ollTFnc+Qi3tqmqJp9Vg2ovUpixcJEo2HJScN2Ez+kEaal6y70c0ehqJBJeA=="],
+
+    "possible-typed-array-names": ["possible-typed-array-names@1.1.0", "", {}, "sha512-/+5VFTchJDoVj3bhoqi6UeymcD00DAwb1nJwamzPvHEszJ4FpF6SNNbUbOS8yI56qHzdV8eK0qEfOSiodkTdxg=="],
+
     "postcss": ["postcss@8.5.15", "", { "dependencies": { "nanoid": "^3.3.12", "picocolors": "^1.1.1", "source-map-js": "^1.2.1" } }, "sha512-FfR8sjd4em2T6fb3I2MwAJU7HWVMr9zba+enmQeeWFfCbm+UOC/0X4DS8XtpUTMwWMGbjKYP7xjfNekzyGmB3A=="],
 
     "postcss-import": ["postcss-import@15.1.0", "", { "dependencies": { "postcss-value-parser": "^4.0.0", "read-cache": "^1.0.0", "resolve": "^1.1.7" }, "peerDependencies": { "postcss": "^8.0.0" } }, "sha512-hpr+J05B2FVYUAXHeK1YyI267J/dDDhMU6B6civm8hSY1jYJnBXxzKDKDswzJmtLHryrjhnDjqqp/49t8FALew=="],
@@ -345,32 +524,76 @@
 
     "postcss-value-parser": ["postcss-value-parser@4.2.0", "", {}, "sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ=="],
 
+    "process": ["process@0.11.10", "", {}, "sha512-cdGef/drWFoydD1JsMzuFf8100nZl+GT+yacc2bEced5f9Rjk4z+WtFUTBu9PhOi9j/jfmBPu0mMEY4wIdAF8A=="],
+
+    "process-nextick-args": ["process-nextick-args@2.0.1", "", {}, "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag=="],
+
+    "public-encrypt": ["public-encrypt@4.0.3", "", { "dependencies": { "bn.js": "^4.1.0", "browserify-rsa": "^4.0.0", "create-hash": "^1.1.0", "parse-asn1": "^5.0.0", "randombytes": "^2.0.1", "safe-buffer": "^5.1.2" } }, "sha512-zVpa8oKZSz5bTMTFClc1fQOnyyEzpl5ozpi1B5YcvBrdohMjH2rfsBtyXcuNuwjsDIXmBYlF2N5FlJYhR29t8Q=="],
+
+    "punycode": ["punycode@1.4.1", "", {}, "sha512-jmYNElW7yvO7TV33CjSmvSiE2yco3bV2czu/OzDKdMNVZQWfxCblURLhf+47syQRBntjfLdd/H0egrzIG+oaFQ=="],
+
+    "qs": ["qs@6.15.2", "", { "dependencies": { "side-channel": "^1.1.0" } }, "sha512-Rzq0KEyX/w/tEybncDgdkZrJgVUsUMk3xjh3t5bv3S1HTAtg+uOYt72+ZfwiQwKdysThkTBdL/rTi6HDmX9Ddw=="],
+
+    "querystring-es3": ["querystring-es3@0.2.1", "", {}, "sha512-773xhDQnZBMFobEiztv8LIl70ch5MSF/jUQVlhwFyBILqq96anmoctVIYz+ZRp0qbCKATTn6ev02M3r7Ga5vqA=="],
+
     "queue-microtask": ["queue-microtask@1.2.3", "", {}, "sha512-NuaNSa6flKT5JaSYQzJok04JzTL1CA6aGhv5rfLW3PgqA+M2ChpZQnAC8h8i4ZFkBS8X5RqkDBHA7r4hej3K9A=="],
 
-    "react": ["react@19.2.6", "", {}, "sha512-sfWGGfavi0xr8Pg0sVsyHMAOziVYKgPLNrS7ig+ivMNb3wbCBw3KxtflsGBAwD3gYQlE/AEZsTLgToRrSCjb0Q=="],
+    "randombytes": ["randombytes@2.1.0", "", { "dependencies": { "safe-buffer": "^5.1.0" } }, "sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ=="],
+
+    "randomfill": ["randomfill@1.0.4", "", { "dependencies": { "randombytes": "^2.0.5", "safe-buffer": "^5.1.0" } }, "sha512-87lcbR8+MhcWcUiQ+9e+Rwx8MyR2P7qnt15ynUlbm3TU/fjbgz4GsvfSUDTemtCCtVCqb4ZcEFlyPNTh9bBTLw=="],
 
-    "react-dom": ["react-dom@19.2.6", "", { "dependencies": { "scheduler": "^0.27.0" }, "peerDependencies": { "react": "^19.2.6" } }, "sha512-0prMI+hvBbPjsWnxDLxlCGyM8PN6UuWjEUCYmZhO67xIV9Xasa/r/vDnq+Xyq4Lo27g8QSbO5YzARu0D1Sps3g=="],
+    "react": ["react@18.3.1", "", { "dependencies": { "loose-envify": "^1.1.0" } }, "sha512-wS+hAgJShR0KhEvPJArfuPVN1+Hz1t0Y6n5jLrGQbkb4urgPE/0Rve+1kMB1v/oWgHgm4WIcV+i7F2pTVj+2iQ=="],
+
+    "react-dom": ["react-dom@18.3.1", "", { "dependencies": { "loose-envify": "^1.1.0", "scheduler": "^0.23.2" }, "peerDependencies": { "react": "^18.3.1" } }, "sha512-5m4nQKp+rZRb09LNH59GM4BxTh9251/ylbKIbpe7TpGxfJ+9kv6BLkLBXIjjspbgbnIBNqlI23tRnTWT0snUIw=="],
 
     "react-refresh": ["react-refresh@0.18.0", "", {}, "sha512-QgT5//D3jfjJb6Gsjxv0Slpj23ip+HtOpnNgnb2S5zU3CB26G/IDPGoy4RJB42wzFE46DRsstbW6tKHoKbhAxw=="],
 
     "read-cache": ["read-cache@1.0.0", "", { "dependencies": { "pify": "^2.3.0" } }, "sha512-Owdv/Ft7IjOgm/i0xvNDZ1LrRANRfew4b2prF3OWMQLxLfu3bS8FVhCsrSCMK4lR56Y9ya+AThoTpDCTxCmpRA=="],
 
+    "readable-stream": ["readable-stream@3.6.2", "", { "dependencies": { "inherits": "^2.0.3", "string_decoder": "^1.1.1", "util-deprecate": "^1.0.1" } }, "sha512-9u/sniCrY3D5WdsERHzHE4G2YCXqoG5FTHUiCC4SIbr6XcLZBY05ya9EKjYek9O5xOAwjGq+1JdGBAS7Q9ScoA=="],
+
     "readdirp": ["readdirp@3.6.0", "", { "dependencies": { "picomatch": "^2.2.1" } }, "sha512-hOS089on8RduqdbhvQ5Z37A0ESjsqz6qnRcffsMU3495FuTdqSm+7bhJ29JvIOsBDEEnan5DPu9t3To9VRlMzA=="],
 
     "resolve": ["resolve@1.22.12", "", { "dependencies": { "es-errors": "^1.3.0", "is-core-module": "^2.16.1", "path-parse": "^1.0.7", "supports-preserve-symlinks-flag": "^1.0.0" }, "bin": { "resolve": "bin/resolve" } }, "sha512-TyeJ1zif53BPfHootBGwPRYT1RUt6oGWsaQr8UyZW/eAm9bKoijtvruSDEmZHm92CwS9nj7/fWttqPCgzep8CA=="],
 
     "reusify": ["reusify@1.1.0", "", {}, "sha512-g6QUff04oZpHs0eG5p83rFLhHeV00ug/Yf9nZM6fLeUrPguBTkTQOdpAWWspMh55TZfVQDPaN3NQJfbVRAxdIw=="],
 
+    "ripemd160": ["ripemd160@2.0.3", "", { "dependencies": { "hash-base": "^3.1.2", "inherits": "^2.0.4" } }, "sha512-5Di9UC0+8h1L6ZD2d7awM7E/T4uA1fJRlx6zk/NvdCCVEoAnFqvHmCuNeIKoCeIixBX/q8uM+6ycDvF8woqosA=="],
+
     "rollup": ["rollup@4.60.4", "", { "dependencies": { "@types/estree": "1.0.8" }, "optionalDependencies": { "@rollup/rollup-android-arm-eabi": "4.60.4", "@rollup/rollup-android-arm64": "4.60.4", "@rollup/rollup-darwin-arm64": "4.60.4", "@rollup/rollup-darwin-x64": "4.60.4", "@rollup/rollup-freebsd-arm64": "4.60.4", "@rollup/rollup-freebsd-x64": "4.60.4", "@rollup/rollup-linux-arm-gnueabihf": "4.60.4", "@rollup/rollup-linux-arm-musleabihf": "4.60.4", "@rollup/rollup-linux-arm64-gnu": "4.60.4", "@rollup/rollup-linux-arm64-musl": "4.60.4", "@rollup/rollup-linux-loong64-gnu": "4.60.4", "@rollup/rollup-linux-loong64-musl": "4.60.4", "@rollup/rollup-linux-ppc64-gnu": "4.60.4", "@rollup/rollup-linux-ppc64-musl": "4.60.4", "@rollup/rollup-linux-riscv64-gnu": "4.60.4", "@rollup/rollup-linux-riscv64-musl": "4.60.4", "@rollup/rollup-linux-s390x-gnu": "4.60.4", "@rollup/rollup-linux-x64-gnu": "4.60.4", "@rollup/rollup-linux-x64-musl": "4.60.4", "@rollup/rollup-openbsd-x64": "4.60.4", "@rollup/rollup-openharmony-arm64": "4.60.4", "@rollup/rollup-win32-arm64-msvc": "4.60.4", "@rollup/rollup-win32-ia32-msvc": "4.60.4", "@rollup/rollup-win32-x64-gnu": "4.60.4", "@rollup/rollup-win32-x64-msvc": "4.60.4", "fsevents": "~2.3.2" }, "bin": { "rollup": "dist/bin/rollup" } }, "sha512-WHeFSbZYsPu3+bLoNRUuAO+wavNlocOPf3wSHTP7hcFKVnJeWsYlCDbr3mTS14FCizf9ccIxXA8sGL8zKeQN3g=="],
 
     "run-parallel": ["run-parallel@1.2.0", "", { "dependencies": { "queue-microtask": "^1.2.2" } }, "sha512-5l4VyZR86LZ/lDxZTR6jqL8AFE2S0IFLMP26AbjsLVADxHdhB/c0GUsH+y39UfCi3dzz8OlQuPmnaJOMoDHQBA=="],
 
-    "scheduler": ["scheduler@0.27.0", "", {}, "sha512-eNv+WrVbKu1f3vbYJT/xtiF5syA5HPIMtf9IgY/nKg0sWqzAUEvqY/xm7OcZc/qafLx/iO9FgOmeSAp4v5ti/Q=="],
+    "safe-buffer": ["safe-buffer@5.2.1", "", {}, "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="],
+
+    "safe-regex-test": ["safe-regex-test@1.1.0", "", { "dependencies": { "call-bound": "^1.0.2", "es-errors": "^1.3.0", "is-regex": "^1.2.1" } }, "sha512-x/+Cz4YrimQxQccJf5mKEbIa1NzeCRNI5Ecl/ekmlYaampdNLPalVyIcCZNNH3MvmqBugV5TMYZXv0ljslUlaw=="],
+
+    "scheduler": ["scheduler@0.23.2", "", { "dependencies": { "loose-envify": "^1.1.0" } }, "sha512-UOShsPwz7NrMUqhR6t0hWjFduvOzbtv7toDH1/hIrfRNIDBnnBWd0CwJTGvTpngVlmwGCdP9/Zl/tVrDqcuYzQ=="],
 
     "semver": ["semver@6.3.1", "", { "bin": { "semver": "bin/semver.js" } }, "sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA=="],
 
+    "set-function-length": ["set-function-length@1.2.2", "", { "dependencies": { "define-data-property": "^1.1.4", "es-errors": "^1.3.0", "function-bind": "^1.1.2", "get-intrinsic": "^1.2.4", "gopd": "^1.0.1", "has-property-descriptors": "^1.0.2" } }, "sha512-pgRc4hJ4/sNjWCSS9AmnS40x3bNMDTknHgL5UaMBTMyJnU90EgWh1Rz+MC9eFu4BuN/UwZjKQuY/1v3rM7HMfg=="],
+
+    "setimmediate": ["setimmediate@1.0.5", "", {}, "sha512-MATJdZp8sLqDl/68LfQmbP8zKPLQNV6BIZoIgrscFDQ+RsvK/BxeDQOgyxKKoh0y/8h3BqVFnCqQ/gd+reiIXA=="],
+
+    "sha.js": ["sha.js@2.4.12", "", { "dependencies": { "inherits": "^2.0.4", "safe-buffer": "^5.2.1", "to-buffer": "^1.2.0" }, "bin": { "sha.js": "bin.js" } }, "sha512-8LzC5+bvI45BjpfXU8V5fdU2mfeKiQe1D1gIMn7XUlF3OTUrpdJpPPH4EMAnF0DsHHdSZqCdSss5qCmJKuiO3w=="],
+
+    "side-channel": ["side-channel@1.1.0", "", { "dependencies": { "es-errors": "^1.3.0", "object-inspect": "^1.13.3", "side-channel-list": "^1.0.0", "side-channel-map": "^1.0.1", "side-channel-weakmap": "^1.0.2" } }, "sha512-ZX99e6tRweoUXqR+VBrslhda51Nh5MTQwou5tnUDgbtyM0dBgmhEDtWGP/xbKn6hqfPRHujUNwz5fy/wbbhnpw=="],
+
+    "side-channel-list": ["side-channel-list@1.0.1", "", { "dependencies": { "es-errors": "^1.3.0", "object-inspect": "^1.13.4" } }, "sha512-mjn/0bi/oUURjc5Xl7IaWi/OJJJumuoJFQJfDDyO46+hBWsfaVM65TBHq2eoZBhzl9EchxOijpkbRC8SVBQU0w=="],
+
+    "side-channel-map": ["side-channel-map@1.0.1", "", { "dependencies": { "call-bound": "^1.0.2", "es-errors": "^1.3.0", "get-intrinsic": "^1.2.5", "object-inspect": "^1.13.3" } }, "sha512-VCjCNfgMsby3tTdo02nbjtM/ewra6jPHmpThenkTYh8pG9ucZ/1P8So4u4FGBek/BjpOVsDCMoLA/iuBKIFXRA=="],
+
+    "side-channel-weakmap": ["side-channel-weakmap@1.0.2", "", { "dependencies": { "call-bound": "^1.0.2", "es-errors": "^1.3.0", "get-intrinsic": "^1.2.5", "object-inspect": "^1.13.3", "side-channel-map": "^1.0.1" } }, "sha512-WPS/HvHQTYnHisLo9McqBHOJk2FkHO/tlpvldyrnem4aeQp4hai3gythswg6p01oSoTl58rcpiFAjF2br2Ak2A=="],
+
     "source-map-js": ["source-map-js@1.2.1", "", {}, "sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA=="],
 
+    "stream-browserify": ["stream-browserify@3.0.0", "", { "dependencies": { "inherits": "~2.0.4", "readable-stream": "^3.5.0" } }, "sha512-H73RAHsVBapbim0tU2JwwOiXUj+fikfiaoYAKHF3VJfA0pe2BCzkhAHBlLG6REzE+2WNZcxOXjK7lkso+9euLA=="],
+
+    "stream-http": ["stream-http@3.2.0", "", { "dependencies": { "builtin-status-codes": "^3.0.0", "inherits": "^2.0.4", "readable-stream": "^3.6.0", "xtend": "^4.0.2" } }, "sha512-Oq1bLqisTyK3TSCXpPbT4sdeYNdmyZJv1LxpEm2vu1ZhK89kSE5YXwZc3cWk0MagGaKriBh9mCFbVGtO+vY29A=="],
+
+    "string_decoder": ["string_decoder@1.3.0", "", { "dependencies": { "safe-buffer": "~5.2.0" } }, "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA=="],
+
     "sucrase": ["sucrase@3.35.1", "", { "dependencies": { "@jridgewell/gen-mapping": "^0.3.2", "commander": "^4.0.0", "lines-and-columns": "^1.1.6", "mz": "^2.7.0", "pirates": "^4.0.1", "tinyglobby": "^0.2.11", "ts-interface-checker": "^0.1.9" }, "bin": { "sucrase": "bin/sucrase", "sucrase-node": "bin/sucrase-node" } }, "sha512-DhuTmvZWux4H1UOnWMB3sk0sbaCVOoQZjv8u1rDoTV0HTdGem9hkAZtl4JZy8P2z4Bg0nT+YMeOFyVr4zcG5Tw=="],
 
     "supports-preserve-symlinks-flag": ["supports-preserve-symlinks-flag@1.0.0", "", {}, "sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w=="],
@@ -381,34 +604,84 @@
 
     "thenify-all": ["thenify-all@1.6.0", "", { "dependencies": { "thenify": ">= 3.1.0 < 4" } }, "sha512-RNxQH/qI8/t3thXJDwcstUO4zeqo64+Uy/+sNVRBx4Xn2OX+OZ9oP+iJnNFqplFra2ZUVeKCSa2oVWi3T4uVmA=="],
 
+    "timers-browserify": ["timers-browserify@2.0.12", "", { "dependencies": { "setimmediate": "^1.0.4" } }, "sha512-9phl76Cqm6FhSX9Xe1ZUAMLtm1BLkKj2Qd5ApyWkXzsMRaA7dgr81kf4wJmQf/hAvg8EEyJxDo3du/0KlhPiKQ=="],
+
     "tinyglobby": ["tinyglobby@0.2.16", "", { "dependencies": { "fdir": "^6.5.0", "picomatch": "^4.0.4" } }, "sha512-pn99VhoACYR8nFHhxqix+uvsbXineAasWm5ojXoN8xEwK5Kd3/TrhNn1wByuD52UxWRLy8pu+kRMniEi6Eq9Zg=="],
 
+    "to-buffer": ["to-buffer@1.2.2", "", { "dependencies": { "isarray": "^2.0.5", "safe-buffer": "^5.2.1", "typed-array-buffer": "^1.0.3" } }, "sha512-db0E3UJjcFhpDhAF4tLo03oli3pwl3dbnzXOUIlRKrp+ldk/VUxzpWYZENsw2SZiuBjHAk7DfB0VU7NKdpb6sw=="],
+
     "to-regex-range": ["to-regex-range@5.0.1", "", { "dependencies": { "is-number": "^7.0.0" } }, "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ=="],
 
     "ts-interface-checker": ["ts-interface-checker@0.1.13", "", {}, "sha512-Y/arvbn+rrz3JCKl9C4kVNfTfSm2/mEp5FSz5EsZSANGPSlQrpRI5M4PKF+mJnE52jOO90PnPSc3Ur3bTQw0gA=="],
 
     "tslib": ["tslib@2.8.1", "", {}, "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w=="],
 
+    "tty-browserify": ["tty-browserify@0.0.1", "", {}, "sha512-C3TaO7K81YvjCgQH9Q1S3R3P3BtN3RIM8n+OvX4il1K1zgE8ZhI0op7kClgkxtutIE8hQrcrHBXvIheqKUUCxw=="],
+
+    "typed-array-buffer": ["typed-array-buffer@1.0.3", "", { "dependencies": { "call-bound": "^1.0.3", "es-errors": "^1.3.0", "is-typed-array": "^1.1.14" } }, "sha512-nAYYwfY3qnzX30IkA6AQZjVbtK6duGontcQm1WSG1MD94YLqK0515GNApXkoxKOWMusVssAHWLh9SeaoefYFGw=="],
+
     "typescript": ["typescript@5.9.3", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw=="],
 
     "undici-types": ["undici-types@6.21.0", "", {}, "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ=="],
 
     "update-browserslist-db": ["update-browserslist-db@1.2.3", "", { "dependencies": { "escalade": "^3.2.0", "picocolors": "^1.1.1" }, "peerDependencies": { "browserslist": ">= 4.21.0" }, "bin": { "update-browserslist-db": "cli.js" } }, "sha512-Js0m9cx+qOgDxo0eMiFGEueWztz+d4+M3rGlmKPT+T4IS/jP4ylw3Nwpu6cpTTP8R1MAC1kF4VbdLt3ARf209w=="],
 
+    "url": ["url@0.11.4", "", { "dependencies": { "punycode": "^1.4.1", "qs": "^6.12.3" } }, "sha512-oCwdVC7mTuWiPyjLUz/COz5TLk6wgp0RCsN+wHZ2Ekneac9w8uuV0njcbbie2ME+Vs+d6duwmYuR3HgQXs1fOg=="],
+
+    "util": ["util@0.12.5", "", { "dependencies": { "inherits": "^2.0.3", "is-arguments": "^1.0.4", "is-generator-function": "^1.0.7", "is-typed-array": "^1.1.3", "which-typed-array": "^1.1.2" } }, "sha512-kZf/K6hEIrWHI6XqOFUiiMa+79wE/D8Q+NCNAWclkyg3b4d2k7s0QGepNjiABc+aR3N1PAyHL7p6UcLY6LmrnA=="],
+
     "util-deprecate": ["util-deprecate@1.0.2", "", {}, "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw=="],
 
     "vite": ["vite@7.3.3", "", { "dependencies": { "esbuild": "^0.27.0", "fdir": "^6.5.0", "picomatch": "^4.0.3", "postcss": "^8.5.6", "rollup": "^4.43.0", "tinyglobby": "^0.2.15" }, "optionalDependencies": { "fsevents": "~2.3.3" }, "peerDependencies": { "@types/node": "^20.19.0 || >=22.12.0", "jiti": ">=1.21.0", "less": "^4.0.0", "lightningcss": "^1.21.0", "sass": "^1.70.0", "sass-embedded": "^1.70.0", "stylus": ">=0.54.8", "sugarss": "^5.0.0", "terser": "^5.16.0", "tsx": "^4.8.1", "yaml": "^2.4.2" }, "optionalPeers": ["@types/node", "jiti", "less", "lightningcss", "sass", "sass-embedded", "stylus", "sugarss", "terser", "tsx", "yaml"], "bin": { "vite": "bin/vite.js" } }, "sha512-/4XH147Ui7OGTjg3HbdWe5arnZQSbfuRzdr9Ec7TQi5I7R+ir0Rlc9GIvD4v0XZurELqA035KVXJXpR61xhiTA=="],
 
+    "vite-plugin-node-polyfills": ["vite-plugin-node-polyfills@0.24.0", "", { "dependencies": { "@rollup/plugin-inject": "^5.0.5", "node-stdlib-browser": "^1.2.0" }, "peerDependencies": { "vite": "^2.0.0 || ^3.0.0 || ^4.0.0 || ^5.0.0 || ^6.0.0 || ^7.0.0" } }, "sha512-GA9QKLH+vIM8NPaGA+o2t8PDfFUl32J8rUp1zQfMKVJQiNkOX4unE51tR6ppl6iKw5yOrDAdSH7r/UIFLCVhLw=="],
+
+    "vm-browserify": ["vm-browserify@1.1.2", "", {}, "sha512-2ham8XPWTONajOR0ohOKOHXkm3+gaBmGut3SRuu75xLd/RRaY6vqgh8NBYYk7+RW3u5AtzPQZG8F10LHkl0lAQ=="],
+
+    "which-typed-array": ["which-typed-array@1.1.21", "", { "dependencies": { "available-typed-arrays": "^1.0.7", "call-bind": "^1.0.9", "call-bound": "^1.0.4", "for-each": "^0.3.5", "get-proto": "^1.0.1", "gopd": "^1.2.0", "has-tostringtag": "^1.0.2" } }, "sha512-zbRA8cVm6io/d5W8uIe2hblzN76/Wm3v/yiythQvr+dpBWeqhPSWIDNj4zOyHi4zKbMK6DN34Xsr9jPHJERAEw=="],
+
+    "xtend": ["xtend@4.0.2", "", {}, "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="],
+
     "yallist": ["yallist@3.1.1", "", {}, "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g=="],
 
+    "yocto-queue": ["yocto-queue@0.1.0", "", {}, "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q=="],
+
     "anymatch/picomatch": ["picomatch@2.3.2", "", {}, "sha512-V7+vQEJ06Z+c5tSye8S+nHUfI51xoXIXjHQ99cQtKUkQqqO1kO/KCJUfZXuB47h/YBlDhah2H3hdUGXn8ie0oA=="],
 
+    "asn1.js/bn.js": ["bn.js@4.12.3", "", {}, "sha512-fGTi3gxV/23FTYdAoUtLYp6qySe2KE3teyZitipKNRuVYcBkoP/bB3guXN/XVKUe9mxCHXnc9C4ocyz8OmgN0g=="],
+
+    "browserify-sign/readable-stream": ["readable-stream@2.3.8", "", { "dependencies": { "core-util-is": "~1.0.0", "inherits": "~2.0.3", "isarray": "~1.0.0", "process-nextick-args": "~2.0.0", "safe-buffer": "~5.1.1", "string_decoder": "~1.1.1", "util-deprecate": "~1.0.1" } }, "sha512-8p0AUk4XODgIewSi0l8Epjs+EVnWiK7NoDIEGU0HhE7+ZyY8D1IMY7odu5lRrFXGg71L15KG8QrPmum45RTtdA=="],
+
     "chokidar/glob-parent": ["glob-parent@5.1.2", "", { "dependencies": { "is-glob": "^4.0.1" } }, "sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow=="],
 
+    "create-ecdh/bn.js": ["bn.js@4.12.3", "", {}, "sha512-fGTi3gxV/23FTYdAoUtLYp6qySe2KE3teyZitipKNRuVYcBkoP/bB3guXN/XVKUe9mxCHXnc9C4ocyz8OmgN0g=="],
+
+    "diffie-hellman/bn.js": ["bn.js@4.12.3", "", {}, "sha512-fGTi3gxV/23FTYdAoUtLYp6qySe2KE3teyZitipKNRuVYcBkoP/bB3guXN/XVKUe9mxCHXnc9C4ocyz8OmgN0g=="],
+
+    "elliptic/bn.js": ["bn.js@4.12.3", "", {}, "sha512-fGTi3gxV/23FTYdAoUtLYp6qySe2KE3teyZitipKNRuVYcBkoP/bB3guXN/XVKUe9mxCHXnc9C4ocyz8OmgN0g=="],
+
     "fast-glob/glob-parent": ["glob-parent@5.1.2", "", { "dependencies": { "is-glob": "^4.0.1" } }, "sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow=="],
 
     "micromatch/picomatch": ["picomatch@2.3.2", "", {}, "sha512-V7+vQEJ06Z+c5tSye8S+nHUfI51xoXIXjHQ99cQtKUkQqqO1kO/KCJUfZXuB47h/YBlDhah2H3hdUGXn8ie0oA=="],
 
+    "miller-rabin/bn.js": ["bn.js@4.12.3", "", {}, "sha512-fGTi3gxV/23FTYdAoUtLYp6qySe2KE3teyZitipKNRuVYcBkoP/bB3guXN/XVKUe9mxCHXnc9C4ocyz8OmgN0g=="],
+
+    "public-encrypt/bn.js": ["bn.js@4.12.3", "", {}, "sha512-fGTi3gxV/23FTYdAoUtLYp6qySe2KE3teyZitipKNRuVYcBkoP/bB3guXN/XVKUe9mxCHXnc9C4ocyz8OmgN0g=="],
+
     "readdirp/picomatch": ["picomatch@2.3.2", "", {}, "sha512-V7+vQEJ06Z+c5tSye8S+nHUfI51xoXIXjHQ99cQtKUkQqqO1kO/KCJUfZXuB47h/YBlDhah2H3hdUGXn8ie0oA=="],
+
+    "ripemd160/hash-base": ["hash-base@3.1.2", "", { "dependencies": { "inherits": "^2.0.4", "readable-stream": "^2.3.8", "safe-buffer": "^5.2.1", "to-buffer": "^1.2.1" } }, "sha512-Bb33KbowVTIj5s7Ked1OsqHUeCpz//tPwR+E2zJgJKo9Z5XolZ9b6bdUgjmYlwnWhoOQKoTd1TYToZGn5mAYOg=="],
+
+    "to-buffer/isarray": ["isarray@2.0.5", "", {}, "sha512-xHjhDr3cNBK0BzdUJSPXZntQUx/mwMS5Rw4A7lPJ90XGAO6ISP/ePDNuo0vhqOZU+UD5JoodwCAAoZQd3FeAKw=="],
+
+    "browserify-sign/readable-stream/safe-buffer": ["safe-buffer@5.1.2", "", {}, "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="],
+
+    "browserify-sign/readable-stream/string_decoder": ["string_decoder@1.1.1", "", { "dependencies": { "safe-buffer": "~5.1.0" } }, "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg=="],
+
+    "ripemd160/hash-base/readable-stream": ["readable-stream@2.3.8", "", { "dependencies": { "core-util-is": "~1.0.0", "inherits": "~2.0.3", "isarray": "~1.0.0", "process-nextick-args": "~2.0.0", "safe-buffer": "~5.1.1", "string_decoder": "~1.1.1", "util-deprecate": "~1.0.1" } }, "sha512-8p0AUk4XODgIewSi0l8Epjs+EVnWiK7NoDIEGU0HhE7+ZyY8D1IMY7odu5lRrFXGg71L15KG8QrPmum45RTtdA=="],
+
+    "ripemd160/hash-base/readable-stream/safe-buffer": ["safe-buffer@5.1.2", "", {}, "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="],
+
+    "ripemd160/hash-base/readable-stream/string_decoder": ["string_decoder@1.1.1", "", { "dependencies": { "safe-buffer": "~5.1.0" } }, "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg=="],
   }
 }
diff --git a/web/package.json b/web/package.json
index dfc9e02..d8561ee 100644
--- a/web/package.json
+++ b/web/package.json
@@ -13,18 +13,19 @@
     "@tanstack/react-query": "^5.62.7",
     "@timescale/popsql-query-widget": "0.0.0-dev.156",
     "framer-motion": "^12.0.0",
-    "react": "^19.0.0",
-    "react-dom": "^19.0.0"
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1"
   },
   "devDependencies": {
     "@types/node": "^22.10.0",
-    "@types/react": "^19.0.0",
-    "@types/react-dom": "^19.0.0",
+    "@types/react": "^18.3.0",
+    "@types/react-dom": "^18.3.0",
     "@vitejs/plugin-react": "^5.0.0",
     "autoprefixer": "^10.4.20",
     "postcss": "^8.4.49",
     "tailwindcss": "^3.4.17",
     "typescript": "^5.7.2",
-    "vite": "^7.0.0"
+    "vite": "^7.0.0",
+    "vite-plugin-node-polyfills": "^0.24.0"
   }
 }
diff --git a/web/src/app.tsx b/web/src/app.tsx
index 9787fe5..47d569e 100644
--- a/web/src/app.tsx
+++ b/web/src/app.tsx
@@ -1,5 +1,8 @@
 import { useQuery } from '@tanstack/react-query';
 import { useEffect, useState } from 'react';
+import '@timescale/popsql-query-widget/index.css';
+
+import { QueryPanel } from './components/QueryPanel';
 
 interface Bootstrap {
   projectId: string;
@@ -91,23 +94,19 @@ export function App() {
           )}
         </div>
       </header>
-      <main className="flex flex-1 items-center justify-center">
+      <main className="flex flex-1 flex-col overflow-hidden p-2">
         {bootstrap.isError ? (
           <div className="text-red-600">Failed to load bootstrap config</div>
         ) : !selected ? (
           <div className="text-slate-500">Select a database to run queries.</div>
+        ) : !bootstrap.data ? (
+          <div className="text-slate-500">Loading…</div>
         ) : (
-          <div className="rounded border border-slate-200 bg-white p-6 text-slate-700">
-            <div className="text-sm text-slate-500">project</div>
-            <div className="font-mono text-sm">{bootstrap.data?.projectId ?? '…'}</div>
-            <div className="mt-3 text-sm text-slate-500">database</div>
-            <div className="font-mono text-sm">
-              {selected.name} <span className="text-slate-400">({selected.id})</span>
-            </div>
-            <div className="mt-4 text-sm text-slate-400">
-              Query widget will render here in step 2.
-            </div>
-          </div>
+          <QueryPanel
+            projectId={bootstrap.data.projectId}
+            databaseId={selected.id}
+            databaseName={selected.name}
+          />
         )}
       </main>
     </div>
diff --git a/web/src/components/QueryPanel.tsx b/web/src/components/QueryPanel.tsx
new file mode 100644
index 0000000..7914a10
--- /dev/null
+++ b/web/src/components/QueryPanel.tsx
@@ -0,0 +1,51 @@
+import type React from 'react';
+import {
+  ContextMenuContext,
+  ContextMenuProvider,
+  ExecuteQueryEngine,
+  QueryWidget,
+  QueryWidgetProvider,
+  TimescaleResultsCacheContextProvider,
+} from '@timescale/popsql-query-widget';
+import { useState } from 'react';
+
+interface Props {
+  projectId: string;
+  databaseId: string;
+  databaseName: string;
+}
+
+// QueryPanel renders the PopSQL query widget targeted at a single ghost
+// database. The sessionKey is derived from the database ID so switching
+// databases automatically invalidates the session (and tears down the
+// in-process PG connection on the Go side).
+export function QueryPanel({ projectId, databaseId, databaseName }: Props) {
+  const [query, setQuery] = useState(`-- ${databaseName}\nSELECT 1;\n`);
+
+  return (
+    <TimescaleResultsCacheContextProvider baseUrl={window.location.origin}>
+      <QueryWidgetProvider theme="light">
+        <ContextMenuProvider>
+          <QueryWidget
+            id={`ghost-${databaseId}`}
+            query={query}
+            onQueryChange={setQuery}
+            sessionKey={`ghost-${databaseId}`}
+            getExecuteQueryData={({ runId, query }) => ({
+              engine: ExecuteQueryEngine.timescaleQuery,
+              params: {
+                projectId,
+                serviceId: databaseId,
+                query,
+                runId,
+              },
+            })}
+          />
+          <ContextMenuContext.Consumer>
+            {({ render }: { render: () => React.ReactNode }) => render()}
+          </ContextMenuContext.Consumer>
+        </ContextMenuProvider>
+      </QueryWidgetProvider>
+    </TimescaleResultsCacheContextProvider>
+  );
+}
diff --git a/web/vite.config.ts b/web/vite.config.ts
index e87787f..ba0f1ee 100644
--- a/web/vite.config.ts
+++ b/web/vite.config.ts
@@ -1,10 +1,51 @@
-import { defineConfig } from 'vite';
+import { defineConfig, type Plugin } from 'vite';
 import react from '@vitejs/plugin-react';
+import { nodePolyfills } from 'vite-plugin-node-polyfills';
+import { readdirSync, readFileSync } from 'node:fs';
+import { dirname, join } from 'node:path';
+import { createRequire } from 'node:module';
 
 const ghostServePort = process.env.GHOST_SERVE_DEV_PORT ?? '5174';
 
+// The widget's results.worker.js and editor.worker.js load their DuckDB +
+// Monaco sidecars via `new URL(<variable>, import.meta.url)`. Vite only emits
+// referenced assets when the URL argument is a string literal, so the
+// sidecars get missed and the workers 404 at runtime. We emit them manually
+// — ported from web-cloud/vite.config.ts.
+function copyPopsqlQueryWidgetAssets(): Plugin {
+  return {
+    name: 'copy-popsql-query-widget-assets',
+    apply: 'build',
+    async generateBundle() {
+      const require = createRequire(import.meta.url);
+      const widgetPkgJson = require.resolve('@timescale/popsql-query-widget/package.json');
+      const widgetDir = dirname(widgetPkgJson);
+      const pattern = /^(duckdb-browser-(?:eh|mvp)\.worker\.js|editor\.worker\.js|.+\.wasm)$/;
+      for (const entry of readdirSync(widgetDir, { withFileTypes: true })) {
+        if (!entry.isFile() || !pattern.test(entry.name)) continue;
+        this.emitFile({
+          type: 'asset',
+          fileName: `assets/${entry.name}`,
+          source: readFileSync(join(widgetDir, entry.name)),
+        });
+      }
+    },
+  };
+}
+
 export default defineConfig({
-  plugins: [react()],
+  plugins: [
+    react(),
+    // The widget bundle assumes Node globals (Buffer, process, etc.) exist;
+    // match the shim list web-cloud uses with this widget.
+    nodePolyfills({ include: ['buffer', 'crypto', 'process', 'stream'] }),
+    copyPopsqlQueryWidgetAssets(),
+  ],
+  optimizeDeps: {
+    // The widget bundle expects its workers to live next to its main chunk;
+    // letting Vite pre-bundle it breaks that assumption.
+    exclude: ['@timescale/popsql-query-widget'],
+  },
   server: {
     port: 5173,
     strictPort: false,

From 46d1af61dc4aa54a35bd076aa130748ce1e6e224 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 11:27:35 -0400
Subject: [PATCH 05/39] Polish ghost serve and ungate from GHOST_EXPERIMENTAL

- Promote `ghost serve` to the public command surface (registered
  unconditionally in root.go).
- Update CLAUDE.md to describe internal/serve/ + web/ alongside the
  existing internal/{cmd,mcp,common,...} entries.
- Update README.md Commands table + Usage example.
- Regenerate docs/cli/ from cobra (adds docs/cli/ghost_serve.md and
  the corresponding link in docs/cli/ghost.md).
- Add focused tests:
  * internal/cmd/serve_test.go - asserts the not-logged-in error path
    routes through App.GetClient like every other command.
  * internal/serve/wire_test.go - covers the statements-vs-query
    fallback for executeQueryRequest.SQL() plus the embedded-struct
    decode path used by executeSessionQueryRequest.
  * internal/serve/assets_test.go - exercises the placeholder
    page (fresh checkout, no embedded UI) and, when a real bundle is
    present, the SPA fallback + cache-control headers.
  * internal/serve/store_test.go - runStore add/get/delete, Run
    setError/closeDone idempotence, sessionStore.closeAll.
- Drop the favicon 404 (data: URL placeholder) and add name/aria-label
  to the picker so the only remaining a11y warnings come from inside
  the widget itself.
---
 CLAUDE.md                     |  4 +-
 README.md                     |  2 +
 docs/cli/ghost.md             |  1 +
 docs/cli/ghost_serve.md       | 51 ++++++++++++++++++++++
 internal/cmd/root.go          |  4 +-
 internal/cmd/serve_test.go    | 18 ++++++++
 internal/serve/assets_test.go | 81 +++++++++++++++++++++++++++++++++++
 internal/serve/store_test.go  | 61 ++++++++++++++++++++++++++
 internal/serve/wire_test.go   | 69 +++++++++++++++++++++++++++++
 plan.md                       | 39 ++++++++---------
 web/index.html                |  2 +-
 web/src/app.tsx               |  2 +
 12 files changed, 308 insertions(+), 26 deletions(-)
 create mode 100644 docs/cli/ghost_serve.md
 create mode 100644 internal/cmd/serve_test.go
 create mode 100644 internal/serve/assets_test.go
 create mode 100644 internal/serve/store_test.go
 create mode 100644 internal/serve/wire_test.go

diff --git a/CLAUDE.md b/CLAUDE.md
index 1beea42..3ce84ca 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -5,14 +5,16 @@
 - **`cmd/`** - Binary entry points. Contains `ghost/main.go` (the main CLI binary, which sets up context/signal handling and delegates to the internal command infrastructure), `npm-publisher/` (a CI tool that generates and publishes npm packages for each platform), `generate-docs/` (generates Markdown CLI reference docs to `docs/cli/`), and `generate-tutorial-docs/` (renders every tutorial in the `allTutorials()` registry to `docs/tutorials/`, sharing source-of-truth step data with the live `ghost tutorial` command).
 - **`internal/`** - All core application logic (non-public Go packages).
   - **`internal/tutorial/`** - Data definitions for Ghost's guided tutorials. Each `Tutorial` is a struct bundling `Filename`, narrative (`Title`/`Callout`/`Intro`), an ordered `[]Step`, and an optional `DeleteStep`. Blocks carry CLI args, prose, expected output (markdown-only), and a `Target` enum that scopes them to CLI runs, doc renders, or both. `All()` is the registry imported by both the live CLI command and the `generate-tutorial-docs` binary.
-  - **`internal/cmd/`** - Cobra command implementations for all CLI commands (init, tutorial, create, fork, list, delete, pause, resume, connect, psql, sql, schema, logs, password, pricing, rename, status, feedback, api-key, login, logout, config, mcp, version, upgrade, completion, payment). Each command lives in its own file, named to match the command in snake_case (e.g. `ghost payment list` → `payment_list.go`). Helper files like `completion.go`, `errors.go`, and `logger.go` contain shared utilities. Commands that are not yet ready for public release can be gated behind the `GHOST_EXPERIMENTAL` env var (see `internal/common/app.go`'s `App.Experimental` field).
+  - **`internal/cmd/`** - Cobra command implementations for all CLI commands (init, tutorial, create, fork, list, delete, pause, resume, connect, psql, sql, schema, logs, password, pricing, rename, status, feedback, api-key, login, logout, config, mcp, serve, version, upgrade, completion, payment). Each command lives in its own file, named to match the command in snake_case (e.g. `ghost payment list` → `payment_list.go`). Helper files like `completion.go`, `errors.go`, and `logger.go` contain shared utilities. Commands that are not yet ready for public release can be gated behind the `GHOST_EXPERIMENTAL` env var (see `internal/common/app.go`'s `App.Experimental` field).
   - **`internal/api/`** - API client layer. Includes an OpenAPI-generated REST client (`client.go`, `types.go`), shared HTTP client singleton, and request/response types. **Do not edit `client.go` or `types.go` by hand** — they are generated from `openapi.yaml` (see [Code Generation](#code-generation)). The `mock/` subdirectory contains a generated mock of `ClientWithResponsesInterface` for use in tests.
   - **`internal/config/`** - Configuration management. Handles config file loading (via Viper), credential storage (keyring with file fallback), and version checking.
   - **`internal/common/`** - Shared business logic used across commands and MCP tools. Includes API client initialization, database connection/schema/query utilities, error handling with exit codes, and version update checks.
   - **`internal/mcp/`** - Model Context Protocol (MCP) server. Exposes Ghost database operations as MCP tools for AI/LLM integration, plus a documentation search proxy. Each MCP tool lives in its own file, named to match the tool (e.g. `ghost_usage` → `usage.go`). Helper files like `util.go`, `errors.go`, and `proxy.go` contain shared utilities.
+  - **`internal/serve/`** - Local web UI for `ghost serve`. Embeds a Vite/React SPA (from `web/dist`) via `//go:embed` and exposes the wire protocol the unmodified `@timescale/popsql-query-widget` expects (`/api/executeQuery`, `/api/arrowResults`, `/api/createSession`, `/api/sessionEvents`, `/api/closeSession`, `/api/executeSessionQuery`, `/api/cancelRun`) plus a read-only `/api/databases` passthrough and `/api/bootstrap` config dump. Query execution runs in-process via the `dbdriver/` sub-package (Postgres-only port of popsql-query's driver + pgx/v5/stdlib for OID-aware scan types) and the `dbtypes/` sub-package (custom scan receivers for Date/Numeric/JSON/etc.). Rows are encoded as Apache Arrow IPC stream batches (`arrow.go`, ported from popsql-query's writer).
   - **`internal/analytics/`** - Analytics event tracking with sensitive data redaction for flags, positional arguments, and MCP inputs.
   - **`internal/util/`** - General utilities: type conversion, duration formatting, path helpers, context-aware stdin reading, JSON/YAML serialization, and terminal detection.
 - **`docs/`** - Documentation. `docs/cli/` contains generated Markdown CLI reference docs (produced by `cmd/generate-docs`).
+- **`web/`** - Vite + React workspace for the `ghost serve` browser UI. Built via `scripts/build-web.sh` (which uses the self-bootstrapping `./bun` wrapper) into `web/dist/`, then synced into `internal/serve/web/` for the Go binary's `//go:embed` directive. Uses React 18 (the widget calls `findDOMNode` which was removed in React 19), Tailwind v3 (matches the widget's pinned version), TanStack Query for `/api/databases`/`/api/bootstrap` polling, and `vite-plugin-node-polyfills` for the widget's Buffer/crypto/process/stream shims (same list web-cloud uses). The widget's worker + wasm sidecars are emitted into `assets/` via a custom Vite plugin (ported from web-cloud) because Vite's static analysis misses the `new URL(<variable>, import.meta.url)` references inside the widget's worker chunk.
 - **`scripts/`** - Build and installation scripts (install.sh, install.ps1, completions generation).
 - **`openapi.yaml`** - OpenAPI spec used to generate the API client. Should be kept in sync with the canonical spec in the `ghost-api` repo (see [Code Generation](#code-generation)).
 - **`.github/`** - GitHub Actions CI/CD workflows for testing and releases.
diff --git a/README.md b/README.md
index 9cf4b1d..e305f05 100644
--- a/README.md
+++ b/README.md
@@ -50,6 +50,7 @@ npm install -g @ghost.build/cli
 ghost init        # Interactively configure Ghost (PATH, login, MCP, completions)
 ghost create      # Create a new Postgres database
 ghost list        # List all databases
+ghost serve       # Open a local web UI for running SQL queries
 ```
 
 Learn more about ghost's forking workflow and other features with the interactive tutorial:
@@ -81,6 +82,7 @@ ghost tutorial
 | `logout` | Remove stored credentials |
 | `mcp` | Ghost Model Context Protocol (MCP) server |
 | `password` | Reset the password for a database |
+| `serve` | Launch a local web UI for running SQL queries |
 | `pause` | Pause a running database |
 | `payment` | Manage payment methods |
 | `pricing` | Show compute overage and dedicated database pricing |
diff --git a/docs/cli/ghost.md b/docs/cli/ghost.md
index f9b4937..14e9d5f 100644
--- a/docs/cli/ghost.md
+++ b/docs/cli/ghost.md
@@ -49,6 +49,7 @@ Ghost is a command-line interface for managing PostgreSQL databases.
 * [ghost rename](ghost_rename.md)	 - Rename a database
 * [ghost resume](ghost_resume.md)	 - Resume a paused database
 * [ghost schema](ghost_schema.md)	 - Display database schema information
+* [ghost serve](ghost_serve.md)	 - Launch a local web UI for running SQL queries
 * [ghost share](ghost_share.md)	 - Share a database
 * [ghost sql](ghost_sql.md)	 - Execute SQL query on a database
 * [ghost tutorial](ghost_tutorial.md)	 - Run an interactive Ghost tutorial
diff --git a/docs/cli/ghost_serve.md b/docs/cli/ghost_serve.md
new file mode 100644
index 0000000..6eacecc
--- /dev/null
+++ b/docs/cli/ghost_serve.md
@@ -0,0 +1,51 @@
+---
+title: "ghost serve"
+slug: "ghost_serve"
+description: "CLI reference for ghost serve"
+---
+
+## ghost serve
+
+Launch a local web UI for running SQL queries
+
+### Synopsis
+
+Start a local web server on 127.0.0.1 and open a browser to a UI that lets
+you run SQL queries against your ghost databases. The server runs only for
+the duration of this command — press Ctrl+C to stop it.
+
+```
+ghost serve [flags]
+```
+
+### Examples
+
+```
+  # Launch on an auto-picked port and open the browser
+  ghost serve
+
+  # Pin a port and skip the browser
+  ghost serve --port 5174 --no-open
+```
+
+### Options
+
+```
+  -h, --help          help for serve
+      --host string   interface to bind (loopback by default) (default "127.0.0.1")
+      --no-open       do not open the browser
+      --port int      TCP port to listen on (0 = auto)
+```
+
+### Options inherited from parent commands
+
+```
+      --analytics           enable/disable usage analytics (default true)
+      --color               enable colored output (default true)
+      --config-dir string   config directory (default "~/.config/ghost")
+      --version-check       check for updates (default true)
+```
+
+### SEE ALSO
+
+* [ghost](ghost.md)	 - CLI for managing Postgres databases
diff --git a/internal/cmd/root.go b/internal/cmd/root.go
index 5fccfbf..0d1035a 100644
--- a/internal/cmd/root.go
+++ b/internal/cmd/root.go
@@ -143,9 +143,7 @@ monthly usage.`,
 	cmd.AddCommand(buildUpgradeCmd(app))
 	cmd.AddCommand(buildInvoiceCmd(app))
 	cmd.AddCommand(buildOveragesCmd(app))
-	if app.Experimental {
-		cmd.AddCommand(buildServeCmd(app))
-	}
+	cmd.AddCommand(buildServeCmd(app))
 
 	wrapCommands(cmd, app)
 
diff --git a/internal/cmd/serve_test.go b/internal/cmd/serve_test.go
new file mode 100644
index 0000000..fadceac
--- /dev/null
+++ b/internal/cmd/serve_test.go
@@ -0,0 +1,18 @@
+package cmd
+
+import (
+	"errors"
+	"testing"
+)
+
+func TestServeCmd(t *testing.T) {
+	tests := []cmdTest{
+		{
+			name:    "not logged in",
+			args:    []string{"serve", "--no-open"},
+			opts:    []runOption{withClientError(errors.New("authentication required: no credentials found"))},
+			wantErr: "authentication required: no credentials found",
+		},
+	}
+	runCmdTests(t, tests)
+}
diff --git a/internal/serve/assets_test.go b/internal/serve/assets_test.go
new file mode 100644
index 0000000..b3d1426
--- /dev/null
+++ b/internal/serve/assets_test.go
@@ -0,0 +1,81 @@
+package serve
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+)
+
+func TestAssetHandler_PlaceholderWhenNoBundle(t *testing.T) {
+	// internal/serve/web/ contains only .gitkeep when this test runs in a
+	// fresh checkout; hasBundledUI() returns false and the placeholder
+	// page is served.
+	if hasBundledUI() {
+		t.Skip("web bundle is present; placeholder behavior is exercised in fresh checkouts")
+	}
+	w := httptest.NewRecorder()
+	r := httptest.NewRequest(http.MethodGet, "/", nil)
+	newAssetHandler().ServeHTTP(w, r)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("status = %d, want 200", w.Code)
+	}
+	if ct := w.Header().Get("Content-Type"); !strings.HasPrefix(ct, "text/html") {
+		t.Errorf("Content-Type = %q, want text/html...", ct)
+	}
+	if !strings.Contains(w.Body.String(), "build-web.sh") {
+		t.Errorf("placeholder body missing build-web.sh hint:\n%s", w.Body.String())
+	}
+}
+
+func TestAssetHandler_RealBundleSPABehavior(t *testing.T) {
+	if !hasBundledUI() {
+		t.Skip("requires built web bundle (run scripts/build-web.sh)")
+	}
+	h := newAssetHandler()
+
+	cases := []struct {
+		name       string
+		path       string
+		wantStatus int
+		wantCache  string
+		wantBody   string
+	}{
+		{
+			name:       "root serves index.html",
+			path:       "/",
+			wantStatus: http.StatusOK,
+			wantCache:  "no-cache",
+			wantBody:   "<!doctype html>",
+		},
+		{
+			name:       "SPA fallback for paths without extension",
+			path:       "/some/route",
+			wantStatus: http.StatusOK,
+			wantCache:  "no-cache",
+			wantBody:   "<!doctype html>",
+		},
+		{
+			name:       "missing dotted asset is 404",
+			path:       "/missing.png",
+			wantStatus: http.StatusNotFound,
+		},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			w := httptest.NewRecorder()
+			r := httptest.NewRequest(http.MethodGet, tc.path, nil)
+			h.ServeHTTP(w, r)
+			if w.Code != tc.wantStatus {
+				t.Fatalf("status = %d, want %d", w.Code, tc.wantStatus)
+			}
+			if tc.wantCache != "" && w.Header().Get("Cache-Control") != tc.wantCache {
+				t.Errorf("Cache-Control = %q, want %q", w.Header().Get("Cache-Control"), tc.wantCache)
+			}
+			if tc.wantBody != "" && !strings.Contains(strings.ToLower(w.Body.String()), tc.wantBody) {
+				t.Errorf("body missing %q:\n%.300s", tc.wantBody, w.Body.String())
+			}
+		})
+	}
+}
diff --git a/internal/serve/store_test.go b/internal/serve/store_test.go
new file mode 100644
index 0000000..7175f64
--- /dev/null
+++ b/internal/serve/store_test.go
@@ -0,0 +1,61 @@
+package serve
+
+import (
+	"testing"
+
+	"github.com/timescale/ghost/internal/serve/dbdriver"
+)
+
+func TestRunStore_AddGetDelete(t *testing.T) {
+	s := newRunStore()
+	if got := s.get("missing"); got != nil {
+		t.Errorf("get(missing) = %v, want nil", got)
+	}
+
+	r := &Run{id: "abc"}
+	s.add(r)
+	if got := s.get("abc"); got != r {
+		t.Errorf("get(abc) = %v, want %v", got, r)
+	}
+
+	s.delete("abc")
+	if got := s.get("abc"); got != nil {
+		t.Errorf("get(abc) after delete = %v, want nil", got)
+	}
+}
+
+func TestRun_SetErrorIsIdempotent(t *testing.T) {
+	r := &Run{done: make(chan struct{})}
+	first := &dbdriver.NormalizedError{Message: "first"}
+	second := &dbdriver.NormalizedError{Message: "second"}
+
+	r.setError(first)
+	r.setError(second)
+
+	if r.err != first {
+		t.Errorf("err = %v, want first call to win", r.err)
+	}
+}
+
+func TestRun_CloseDoneIsIdempotent(t *testing.T) {
+	r := &Run{done: make(chan struct{})}
+	r.closeDone()
+	r.closeDone() // must not panic on double-close
+	select {
+	case <-r.done:
+	default:
+		t.Fatal("done channel should be closed")
+	}
+}
+
+func TestSessionStore_CloseAllReleasesEverything(t *testing.T) {
+	s := newSessionStore()
+	s.add(&Session{id: "a", closed: make(chan struct{})})
+	s.add(&Session{id: "b", closed: make(chan struct{})})
+
+	s.closeAll()
+
+	if s.get("a") != nil || s.get("b") != nil {
+		t.Errorf("sessions remain after closeAll")
+	}
+}
diff --git a/internal/serve/wire_test.go b/internal/serve/wire_test.go
new file mode 100644
index 0000000..f777794
--- /dev/null
+++ b/internal/serve/wire_test.go
@@ -0,0 +1,69 @@
+package serve
+
+import (
+	"encoding/json"
+	"testing"
+)
+
+func TestExecuteQueryRequest_SQL(t *testing.T) {
+	tests := []struct {
+		name string
+		body string
+		want string
+	}{
+		{
+			name: "statements array (widget canonical)",
+			body: `{"projectId":"p","serviceId":"s","runId":"r","statements":["SELECT 1;"],"stream":true}`,
+			want: "SELECT 1;",
+		},
+		{
+			name: "multiple statements joined with ;",
+			body: `{"projectId":"p","serviceId":"s","runId":"r","statements":["SELECT 1","SELECT 2"]}`,
+			want: "SELECT 1; SELECT 2",
+		},
+		{
+			name: "falls back to query field when statements is empty",
+			body: `{"projectId":"p","serviceId":"s","runId":"r","query":"SELECT 3","statements":[]}`,
+			want: "SELECT 3",
+		},
+		{
+			name: "falls back to query field when statements is omitted",
+			body: `{"projectId":"p","serviceId":"s","runId":"r","query":"SELECT 4"}`,
+			want: "SELECT 4",
+		},
+		{
+			name: "empty when both fields are blank",
+			body: `{"projectId":"p","serviceId":"s","runId":"r"}`,
+			want: "",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			var req executeQueryRequest
+			if err := json.Unmarshal([]byte(tt.body), &req); err != nil {
+				t.Fatalf("decode: %v", err)
+			}
+			if got := req.SQL(); got != tt.want {
+				t.Errorf("SQL() = %q, want %q", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestExecuteSessionQueryRequest_DecodesEmbedded(t *testing.T) {
+	body := `{"projectId":"p","serviceId":"s","runId":"r","sessionId":"sess","statements":["SELECT 1"],"stream":true}`
+	var req executeSessionQueryRequest
+	if err := json.Unmarshal([]byte(body), &req); err != nil {
+		t.Fatalf("decode: %v", err)
+	}
+	if req.SessionID != "sess" {
+		t.Errorf("SessionID = %q, want %q", req.SessionID, "sess")
+	}
+	if req.RunID != "r" {
+		t.Errorf("RunID = %q, want %q", req.RunID, "r")
+	}
+	if got := req.SQL(); got != "SELECT 1" {
+		t.Errorf("SQL() = %q, want %q", got, "SELECT 1")
+	}
+}
diff --git a/plan.md b/plan.md
index 48f0469..eed9606 100644
--- a/plan.md
+++ b/plan.md
@@ -447,22 +447,14 @@ Why not the memory-engine base64-into-TS approach: Go's `embed.FS` is the natura
 - [x] Discovery: `../ox/bun` self-bootstrap wrapper
 - [x] Discovery: `web-cloud/.yarnrc.yml` + deploy-to-dev GH workflow → bun equivalent
 - [x] Discovery: Arrow Go module path + pgx version pinning
-- [x] Step 1 — `ghost serve` skeleton + static SPA + `/api/databases` (Go side validated end-to-end; SPA build pending widget npm auth — see below)
-- [ ] Step 2 — query execution path (executeQuery, arrowResults, sessions, cancel)
-- [ ] Step 3 — polish, docs, ungate from `GHOST_EXPERIMENTAL`
-- [ ] E2E test pass
+- [x] Step 1 — `ghost serve` skeleton + static SPA + `/api/databases` (validated end-to-end)
+- [x] Step 2 — query execution path (executeQuery, arrowResults, sessions, cancel) — widget integration + 6-type smoke test
+- [x] Step 3 — polish, docs, ungate from `GHOST_EXPERIMENTAL`
+- [x] E2E test pass (manual via Chrome DevTools MCP against a live Timescale Postgres)
 
-### Blocker: `@timescale/popsql-query-widget` private-registry auth
+### Resolved: `@timescale/popsql-query-widget` private-registry auth
 
-Bun install gets 403 from `https://npm.pkg.github.com/@timescale%2fpopsql-query-widget` because the default `gh auth` token only has `repo` / `read:org` scopes, not `read:packages`. The bun bootstrap itself and the rest of the dependency graph (407 packages) resolved fine.
-
-Fix options for the user:
-1. `gh auth refresh -h github.com -s read:packages` (adds the scope to the existing gh CLI token; nothing else changes).
-2. Create a fine-grained PAT at github.com/settings/tokens with `read:packages` scope and export `NPM_AUTH_TOKEN=<pat>` (one-off / CI-friendly).
-
-In CI, the auto-provisioned `secrets.GITHUB_TOKEN` already has `read:packages` (it does for repos that own the package, which we assume `timescale/ghost` does — needs confirmation).
-
-Once auth is unblocked, `./scripts/build-web.sh` produces `web/dist/` and the embed pipeline picks it up automatically on the next Go build.
+Initial `bun install` got 403 from `https://npm.pkg.github.com/@timescale%2fpopsql-query-widget` because the default `gh auth` token only had `repo` / `read:org`. Resolution: `gh auth refresh -h github.com -s read:packages` adds the missing scope; `scripts/build-web.sh` then resolves the widget cleanly. CI uses `secrets.GITHUB_TOKEN` which already has `read:packages` for owner-controlled packages.
 
 ---
 
@@ -525,13 +517,18 @@ Bun reads `.npmrc` natively (and `bunfig.toml` for bun-specific options). Plan:
 
 ---
 
-## Sequencing suggestion
+## Sequencing (as delivered)
+
+Three commits on `murrayju/serve`, in this order:
 
-Single PR is plausible but reviewable in three logical sub-stacks:
+1. `ae9e4f9` — Add ghost serve skeleton. Cobra command behind `GHOST_EXPERIMENTAL`, embed.FS asset handler with SPA fallback + cache headers, `/api/bootstrap` + `/api/databases`, Vite/React workspace with picker + empty body, bun self-bootstrap wrapper, scripts/build-web.sh.
+2. `2df095e` — Fix build-web.sh and pin widget version (`--cwd` doesn't apply to bun's `run`; widget pinned to `0.0.0-dev.156`).
+3. `43921bd` — Wire the popsql query widget into ghost serve. Ported dbtypes + dbdriver + arrow encoder from popsql-query, implemented executeQuery + arrowResults + sessions + cancel handlers, wired `<QueryWidget>` into the SPA with Vite worker/wasm asset emission + node polyfills, React 18 pin.
+4. *(this commit)* — Step 3 polish: ungate from `GHOST_EXPERIMENTAL`, CLAUDE.md + README updates, generated `docs/cli/ghost_serve.md`, tests for wire / assets / store / cmd, favicon + form-name a11y tidy-ups.
 
-1. **Step 1**: `ghost serve` command skeleton + `internal/serve/{server,assets,bootstrap,databases}.go`, `web/` with picker + "hello world" body. Builds, runs, opens browser, lists databases, no query execution yet. Behind `GHOST_EXPERIMENTAL`.
-2. **Step 2**: `internal/serve/{execute,arrow,runs,pgtypes,cancel}.go` and the Arrow Go dep. Wire `<QueryWidget>` into the SPA. End-to-end query execution working.
-3. **Step 3**: polish (cache reaping, error message tuning, README + `docs/cli/`); ungate from `GHOST_EXPERIMENTAL`.
-4. **Step 4 (later)**: session mode.
+## Follow-ups (out of scope for this branch)
 
-Each step lands as its own PR with `murrayju/` prefix.
+- Multi-result-set support: `sql.Rows` only iterates the first result, so multi-statement queries (e.g. two `SELECT`s in one Run) currently show only the first table.
+- `Decimal128` for NUMERIC instead of `Utf8` — needs a popsql-query upgrade too.
+- Query timeout enforcement (the widget sends `timeout` but we ignore it).
+- Server-side `slog` logging + log levels (currently silent by design).
diff --git a/web/index.html b/web/index.html
index 3e2a965..7e700f9 100644
--- a/web/index.html
+++ b/web/index.html
@@ -2,7 +2,7 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+    <link rel="icon" href="data:," />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>ghost</title>
   </head>
diff --git a/web/src/app.tsx b/web/src/app.tsx
index 47d569e..cb49b44 100644
--- a/web/src/app.tsx
+++ b/web/src/app.tsx
@@ -73,6 +73,8 @@ export function App() {
             <span className="text-red-600">Failed to load databases</span>
           ) : (
             <select
+              name="database"
+              aria-label="Database"
               className="rounded border border-slate-300 bg-white px-2 py-1 text-sm focus:border-slate-500 focus:outline-none"
               value={selectedId ?? ''}
               onChange={(e) => setSelectedId(e.target.value || null)}

From d22b8f95fd6844c4d517f0e2a24f6e7d7cd2d812 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 11:31:35 -0400
Subject: [PATCH 06/39] Build the web bundle in CI before Go builds

Both workflows now run scripts/build-web.sh (sourcing the
@timescale/popsql-query-widget from GitHub Packages via the
auto-provisioned secrets.GITHUB_TOKEN) before any go command, so the
embedded bundle in internal/serve/web/ is populated when go build
captures it via //go:embed.

- test.yaml: runs the bundle build before `go mod tidy -diff` /
  `go build` / `go test` so coverage exercises the real asset
  handler (cache headers, SPA fallback, etc.) instead of the
  placeholder fallback.
- release.yaml: runs the bundle build before goreleaser-action so
  every released binary embeds the production-built UI.

The Dockerfile is left unchanged: in release mode it copies a
pre-built binary, and the binary already has the bundle embedded.
For local docker builds the placeholder kicks in as before.
---
 .github/workflows/release.yaml | 5 +++++
 .github/workflows/test.yaml    | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index b8c5c03..0f6c6e7 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -25,6 +25,11 @@ jobs:
         with:
           go-version-file: "go.mod"
 
+      - name: Build web bundle
+        env:
+          NPM_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: ./scripts/build-web.sh
+
       - name: Install package_cloud gem
         run: sudo gem install package_cloud --no-doc
 
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 3256a8b..f5566cc 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -25,6 +25,11 @@ jobs:
       - name: ShellCheck
         run: shellcheck scripts/install.sh
 
+      - name: Build web bundle
+        env:
+          NPM_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: ./scripts/build-web.sh
+
       - name: Mod
         run: go mod tidy -diff
 

From da11875234e5db4bc19f47be5432e8ce85603b65 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 11:32:03 -0400
Subject: [PATCH 07/39] Update plan.md with final commit hashes

---
 plan.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/plan.md b/plan.md
index eed9606..38e28a7 100644
--- a/plan.md
+++ b/plan.md
@@ -524,7 +524,8 @@ Three commits on `murrayju/serve`, in this order:
 1. `ae9e4f9` — Add ghost serve skeleton. Cobra command behind `GHOST_EXPERIMENTAL`, embed.FS asset handler with SPA fallback + cache headers, `/api/bootstrap` + `/api/databases`, Vite/React workspace with picker + empty body, bun self-bootstrap wrapper, scripts/build-web.sh.
 2. `2df095e` — Fix build-web.sh and pin widget version (`--cwd` doesn't apply to bun's `run`; widget pinned to `0.0.0-dev.156`).
 3. `43921bd` — Wire the popsql query widget into ghost serve. Ported dbtypes + dbdriver + arrow encoder from popsql-query, implemented executeQuery + arrowResults + sessions + cancel handlers, wired `<QueryWidget>` into the SPA with Vite worker/wasm asset emission + node polyfills, React 18 pin.
-4. *(this commit)* — Step 3 polish: ungate from `GHOST_EXPERIMENTAL`, CLAUDE.md + README updates, generated `docs/cli/ghost_serve.md`, tests for wire / assets / store / cmd, favicon + form-name a11y tidy-ups.
+4. `d741355` — Polish ghost serve and ungate from GHOST_EXPERIMENTAL. CLAUDE.md + README updates, generated `docs/cli/ghost_serve.md`, tests for wire / assets / store / cmd, favicon + form-name a11y tidy-ups.
+5. `045261e` — Build the web bundle in CI before Go builds. Both `.github/workflows/{test,release}.yaml` now run `./scripts/build-web.sh` before any Go command, sourcing the widget from GitHub Packages via the auto-provisioned `secrets.GITHUB_TOKEN`.
 
 ## Follow-ups (out of scope for this branch)
 

From 0743a44341bee23290f9436fa2a19b5cfb84e7f7 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 13:59:12 -0400
Subject: [PATCH 08/39] Run all statements in a multi-statement query and
 surface the last result
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Before this change, multi-statement input was joined with `; ` and sent
to pgx as a single Query call. pgx's stdlib wrapper only exposes the
first result set through database/sql, so editor content like
`CREATE TEMP TABLE t (...); INSERT ...; SELECT * FROM t` would show
the CREATE TABLE result (empty) instead of the user-relevant rows.

New behavior:
- Server iterates the widget's `statements` array on the same driver
  connection, buffering each result set. Session state (TEMP tables,
  GUCs, search_path, etc.) propagates across statements because
  baseDriver pins a single sql.Conn per driver.
- The displayed result is the last result set that returned columns,
  falling back to the last result set if none had columns (so DDL-only
  runs still show their rowsAffected counter).
- The success NDJSON line carries `executedStatements: N` for any
  caller that needs the count.
- The Vite app shows "Executed N statements" in the toolbar via the
  widget's renderToolbarAppendLeft hook when N > 1, computed from the
  editor text by an SQL-aware counter that skips comments, single- and
  double-quoted regions, and dollar-quoted blocks.
- `runSelection={true}` plus `runButtonLabelWithSelection="Run selection"`
  flips the button label automatically when the user has text selected
  in the editor (widget-native behavior, ported from web-cloud).

Also marks Decimal128-for-NUMERIC as declined in plan.md (the costs
outweigh the UX benefits — see the plan for the full reasoning).
---
 internal/serve/arrow_results.go   |  39 ++-----
 internal/serve/execute.go         | 167 ++++++++++++++++++++++--------
 internal/serve/execute_test.go    |  60 +++++++++++
 internal/serve/store.go           |  39 ++++---
 internal/serve/wire.go            |   9 +-
 plan.md                           |   3 +-
 web/src/components/QueryPanel.tsx |  29 +++++-
 web/src/lib/sql.ts                |  97 +++++++++++++++++
 8 files changed, 349 insertions(+), 94 deletions(-)
 create mode 100644 internal/serve/execute_test.go
 create mode 100644 web/src/lib/sql.ts

diff --git a/internal/serve/arrow_results.go b/internal/serve/arrow_results.go
index 455850b..b60e5d2 100644
--- a/internal/serve/arrow_results.go
+++ b/internal/serve/arrow_results.go
@@ -13,9 +13,11 @@ const arrowBatchRows = 1024
 
 // handleArrowResults serves POST /api/arrowResults. The widget fires this
 // immediately after seeing the executeQuery columns line and expects a raw
-// Arrow IPC stream of rows. We iterate the run's rows in-place, build
-// record batches, and stream them out; when iteration finishes we signal
-// Run.done so the executeQuery handler can emit its terminator.
+// Apache Arrow IPC stream of rows. Rows have already been scanned into
+// run.bufferedRows by executeQuery (so we can pick the right result set out
+// of a multi-statement run); we just convert them to Arrow record batches
+// and stream them out. When we're done we signal Run.done so the
+// executeQuery handler can emit its terminator.
 func (s *Server) handleArrowResults(w http.ResponseWriter, r *http.Request) {
 	var req arrowResultsRequest
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
@@ -44,25 +46,21 @@ func (s *Server) handleArrowResults(w http.ResponseWriter, r *http.Request) {
 
 	ipcWriter := ipc.NewWriter(w, ipc.WithSchema(rb.Schema()))
 	defer ipcWriter.Close()
+	defer run.closeDone()
 
-	targets := run.columns.ScanTargets()
-	for run.rows.Next() {
+	for _, row := range run.bufferedRows {
 		if err := r.Context().Err(); err != nil {
 			run.setError(&dbdriver.NormalizedError{Message: "request canceled", Source: "ghost", Cancel: true})
-			break
+			return
 		}
-		if err := run.rows.Scan(targets...); err != nil {
+		if err := rb.AppendRow(row); err != nil {
 			run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "ghost"})
-			break
-		}
-		if err := rb.AppendRow(targets.Values()); err != nil {
-			run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "ghost"})
-			break
+			return
 		}
 		if rb.RecordRowCount() >= arrowBatchRows {
 			if err := flushBatch(ipcWriter, rb, w); err != nil {
 				run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "ghost"})
-				break
+				return
 			}
 		}
 	}
@@ -71,21 +69,6 @@ func (s *Server) handleArrowResults(w http.ResponseWriter, r *http.Request) {
 			run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "ghost"})
 		}
 	}
-
-	if err := run.rows.Err(); err != nil && run.err == nil {
-		// Defer to the driver's normalizer so PG errors carry code/hint/etc.
-		if run.driver != nil {
-			run.setError(run.driver.NormalizeError(run.queryCtx, err))
-		} else {
-			run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "postgres"})
-		}
-	}
-
-	run.rowCount = rb.TotalRowCount()
-	if rowsAffected, _ := run.rows.RowsAffected(r.Context()); rowsAffected != nil {
-		run.rowsAffected = rowsAffected
-	}
-	run.closeDone()
 }
 
 func flushBatch(ipcWriter *ipc.Writer, rb *RecordBuilder, w http.ResponseWriter) error {
diff --git a/internal/serve/execute.go b/internal/serve/execute.go
index 4ea6a30..9f3076c 100644
--- a/internal/serve/execute.go
+++ b/internal/serve/execute.go
@@ -36,7 +36,7 @@ func (s *Server) handleExecuteQuery(w http.ResponseWriter, r *http.Request) {
 	}
 	defer driver.Close()
 
-	s.runQuery(w, r, req, driver, true)
+	s.runQuery(w, r, req, driver)
 }
 
 // handleExecuteSessionQuery serves POST /api/executeSessionQuery. The
@@ -60,58 +60,74 @@ func (s *Server) handleExecuteSessionQuery(w http.ResponseWriter, r *http.Reques
 		return
 	}
 
-	s.runQuery(w, r, req.executeQueryRequest, session.driver, false)
+	s.runQuery(w, r, req.executeQueryRequest, session.driver)
+}
+
+// bufferedResultSet is one result set materialized in memory: its column
+// descriptors plus every scanned row in order.
+type bufferedResultSet struct {
+	columns      dbdriver.Columns
+	rows         [][]any
+	rowsAffected *int64
 }
 
 // runQuery is the shared body of handleExecuteQuery / handleExecuteSessionQuery.
-// ownsDriver controls whether arrowResults' cleanup will close the driver
-// (true in one-shot mode, false in session mode).
-func (s *Server) runQuery(w http.ResponseWriter, r *http.Request, req executeQueryRequest, driver dbdriver.Driver, ownsDriver bool) {
+//
+// Multi-statement behavior: the widget's worker splits the editor text into a
+// statements array which we join with `; ` and run via pgx's simple text
+// protocol. PG returns one result set per statement. We buffer all of them
+// and surface the last result set that has columns; if none have columns
+// (e.g. only DDL/DML), we surface the last result set so its rowsAffected
+// still shows.
+func (s *Server) runQuery(w http.ResponseWriter, r *http.Request, req executeQueryRequest, driver dbdriver.Driver) {
 	driverCtx, driverCleanup := driver.Context(r.Context())
 	defer driverCleanup()
 
-	rows, err := driver.Query(driverCtx, dbdriver.QueryArgs{Query: req.SQL()})
-	if err != nil {
-		writeErrorTerminator(w, req.RunID, driver.NormalizeError(driverCtx, err))
-		return
-	}
-	defer rows.Close()
-
-	columns, err := rows.Columns()
-	if err != nil {
-		writeErrorTerminator(w, req.RunID, driver.NormalizeError(driverCtx, err))
-		return
-	}
-
-	queryCtx, cancelQuery := context.WithCancel(r.Context())
+	queryCtx, cancelQuery := context.WithCancel(driverCtx)
 	defer cancelQuery()
 
 	run := &Run{
-		id:            req.RunID,
-		projectID:     req.ProjectID,
-		serviceID:     req.ServiceID,
-		startedAt:     time.Now(),
-		rows:          rows,
-		columns:       columns,
-		queryCtx:      queryCtx,
-		cancelQuery:   cancelQuery,
-		driverCleanup: driverCleanup,
-		ready:         make(chan struct{}),
-		done:          make(chan struct{}),
-	}
-	if ownsDriver {
-		run.driver = driver
+		id:          req.RunID,
+		projectID:   req.ProjectID,
+		serviceID:   req.ServiceID,
+		startedAt:   time.Now(),
+		cancelQuery: cancelQuery,
+		ready:       make(chan struct{}),
+		done:        make(chan struct{}),
 	}
 	s.runs.add(run)
 	defer s.runs.delete(req.RunID)
+
+	statements := req.Statements
+	if len(statements) == 0 && req.Query != "" {
+		statements = []string{req.Query}
+	}
+
+	results, bufErr := bufferStatements(queryCtx, driver, statements)
+	if bufErr != nil {
+		writeErrorTerminator(w, req.RunID, driver.NormalizeError(queryCtx, bufErr))
+		return
+	}
+	chosen := pickResultSetToSurface(results)
+	if chosen == nil {
+		// Should not happen: bufferStatements always emits at least one entry
+		// on success. Defensively surface an empty result.
+		chosen = &bufferedResultSet{}
+	}
+
+	run.columns = chosen.columns
+	run.bufferedRows = chosen.rows
+	run.rowCount = int64(len(chosen.rows))
+	run.rowsAffected = chosen.rowsAffected
+	run.executedStatements = int64(len(results))
 	close(run.ready)
 
 	w.Header().Set("Content-Type", "application/x-ndjson")
 	w.Header().Set("Cache-Control", "no-store")
 
 	enc := json.NewEncoder(w)
-	if err := enc.Encode(columnsResult{RunID: req.RunID, Columns: columns}); err != nil {
-		// Client gone before the columns line could be written; bail.
+	if err := enc.Encode(columnsResult{RunID: req.RunID, Columns: chosen.columns}); err != nil {
+		// Client disconnected before columns reached the wire.
 		cancelQuery()
 		return
 	}
@@ -122,9 +138,6 @@ func (s *Server) runQuery(w http.ResponseWriter, r *http.Request, req executeQue
 	case <-run.done:
 	case <-r.Context().Done():
 		cancelQuery()
-		// Give arrowResults a brief window to wrap up cleanly so it sets the
-		// real rowCount + error. If it doesn't return promptly we mark the
-		// run as canceled and proceed.
 		select {
 		case <-run.done:
 		case <-time.After(2 * time.Second):
@@ -137,15 +150,85 @@ func (s *Server) runQuery(w http.ResponseWriter, r *http.Request, req executeQue
 		_ = enc.Encode(errorResult{RunID: req.RunID, Success: false, Error: run.err})
 	} else {
 		_ = enc.Encode(successResult{
-			RunID:        req.RunID,
-			Success:      true,
-			RowCount:     run.rowCount,
-			RowsAffected: run.rowsAffected,
+			RunID:              req.RunID,
+			Success:            true,
+			RowCount:           run.rowCount,
+			RowsAffected:       run.rowsAffected,
+			ExecutedStatements: run.executedStatements,
 		})
 	}
 	flushWriter(w)
 }
 
+// bufferStatements runs each statement in order against the same driver
+// connection (so TEMP tables and other session state from earlier
+// statements are visible to later ones) and buffers the rows from each
+// result set into memory.
+//
+// Iterating per-statement (rather than relying on sql.Rows.NextResultSet)
+// is necessary because pgx's stdlib wrapper only surfaces the first
+// result set of a multi-statement Query call. The widget already does the
+// SQL-aware statement split for us, so we leverage that here.
+func bufferStatements(ctx context.Context, driver dbdriver.Driver, statements []string) ([]bufferedResultSet, error) {
+	out := make([]bufferedResultSet, 0, len(statements))
+	for _, stmt := range statements {
+		rs, err := bufferOneStatement(ctx, driver, stmt)
+		if err != nil {
+			return out, err
+		}
+		out = append(out, rs)
+	}
+	return out, nil
+}
+
+func bufferOneStatement(ctx context.Context, driver dbdriver.Driver, stmt string) (bufferedResultSet, error) {
+	rows, err := driver.Query(ctx, dbdriver.QueryArgs{Query: stmt})
+	if err != nil {
+		return bufferedResultSet{}, err
+	}
+	defer rows.Close()
+
+	cols, err := rows.Columns()
+	if err != nil {
+		return bufferedResultSet{}, err
+	}
+
+	buf := bufferedResultSet{columns: cols}
+	targets := cols.ScanTargets()
+	for rows.Next() {
+		if err := ctx.Err(); err != nil {
+			return buf, err
+		}
+		if err := rows.Scan(targets...); err != nil {
+			return buf, err
+		}
+		buf.rows = append(buf.rows, targets.Values())
+	}
+	if err := rows.Err(); err != nil {
+		return buf, err
+	}
+	if ra, _ := rows.RowsAffected(ctx); ra != nil {
+		buf.rowsAffected = ra
+	}
+	return buf, nil
+}
+
+// pickResultSetToSurface picks the result set we display to the widget,
+// matching the rule the user asked for: prefer the last result set that
+// returned columns; fall back to the last result set if none have columns;
+// nil if the slice is empty.
+func pickResultSetToSurface(results []bufferedResultSet) *bufferedResultSet {
+	if len(results) == 0 {
+		return nil
+	}
+	for i := len(results) - 1; i >= 0; i-- {
+		if len(results[i].columns) > 0 {
+			return &results[i]
+		}
+	}
+	return &results[len(results)-1]
+}
+
 // checkProject rejects requests for a different project than the one the CLI
 // is logged into. Single-user defense in depth.
 func (s *Server) checkProject(w http.ResponseWriter, runID, projectID string) bool {
diff --git a/internal/serve/execute_test.go b/internal/serve/execute_test.go
new file mode 100644
index 0000000..4006661
--- /dev/null
+++ b/internal/serve/execute_test.go
@@ -0,0 +1,60 @@
+package serve
+
+import (
+	"testing"
+
+	"github.com/timescale/ghost/internal/serve/dbdriver"
+)
+
+func TestPickResultSetToSurface(t *testing.T) {
+	one := dbdriver.Column{Name: "n"}
+	withCols := bufferedResultSet{columns: dbdriver.Columns{one}, rows: [][]any{{1}}}
+	emptyCols := bufferedResultSet{columns: nil}
+	otherCols := bufferedResultSet{columns: dbdriver.Columns{{Name: "m"}}, rows: [][]any{{2}}}
+
+	tests := []struct {
+		name string
+		in   []bufferedResultSet
+		want *bufferedResultSet
+	}{
+		{
+			name: "empty input",
+			in:   nil,
+			want: nil,
+		},
+		{
+			name: "single result with columns",
+			in:   []bufferedResultSet{withCols},
+			want: &withCols,
+		},
+		{
+			name: "last result with columns wins",
+			in:   []bufferedResultSet{withCols, otherCols},
+			want: &otherCols,
+		},
+		{
+			name: "last column-bearing result wins even when later results are column-less",
+			in:   []bufferedResultSet{withCols, emptyCols},
+			want: &withCols,
+		},
+		{
+			name: "no columns anywhere falls back to last result",
+			in:   []bufferedResultSet{emptyCols, emptyCols, emptyCols},
+			want: &emptyCols,
+		},
+	}
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			got := pickResultSetToSurface(tc.in)
+			if (got == nil) != (tc.want == nil) {
+				t.Fatalf("got=%v want=%v", got, tc.want)
+			}
+			if got == nil {
+				return
+			}
+			if len(got.columns) != len(tc.want.columns) {
+				t.Errorf("columns len = %d, want %d", len(got.columns), len(tc.want.columns))
+			}
+		})
+	}
+}
diff --git a/internal/serve/store.go b/internal/serve/store.go
index 254d5ed..e60f957 100644
--- a/internal/serve/store.go
+++ b/internal/serve/store.go
@@ -9,35 +9,40 @@ import (
 )
 
 // Run coordinates a single in-flight query between the executeQuery and
-// arrowResults handlers. The widget always fires both: executeQuery streams
-// a columns NDJSON line and then blocks on Run.done; arrowResults consumes
-// the rows + streams Arrow IPC, then closes Run.done so executeQuery can
-// emit the success/error terminator.
+// arrowResults handlers. executeQuery runs the query to completion (all
+// result sets buffered), populates the chosen result set's columns + rows,
+// signals ready, writes the columns NDJSON line, then blocks on done.
+// arrowResults waits for ready, walks bufferedRows into an Arrow IPC stream,
+// then closes done so executeQuery can emit the success/error terminator.
 type Run struct {
 	id        string
 	projectID string
 	serviceID string
 	startedAt time.Time
 
-	// driver is non-nil only when this Run owns the driver (one-shot mode).
-	// In session mode the driver is owned by the Session and reused across
-	// runs; we leave this nil so cleanup doesn't close it.
-	driver  dbdriver.Driver
-	rows    dbdriver.Rows
-	columns dbdriver.Columns
+	// Populated by executeQuery before closing ready. These describe the
+	// single result set we surface to the widget (per the user-facing rule:
+	// last result set with columns, or the last result set if none had
+	// columns).
+	columns      dbdriver.Columns
+	bufferedRows [][]any
+	rowCount     int64
+	rowsAffected *int64
 
-	cancelQuery   context.CancelFunc
-	driverCleanup context.CancelFunc
+	// Number of result sets the database returned for this run — used by the
+	// UI to show "Executed N statements" when N > 1.
+	executedStatements int64
 
-	queryCtx context.Context
+	// cancelQuery aborts the in-flight query via pg_cancel_backend (wired
+	// through driver.Context's cancelContext). Used by /api/cancelRun and
+	// by client-disconnect detection in executeQuery.
+	cancelQuery context.CancelFunc
 
 	ready chan struct{}
 	done  chan struct{}
 
-	rowCount     int64
-	rowsAffected *int64
-	err          *dbdriver.NormalizedError
-	errOnce      sync.Once
+	err     *dbdriver.NormalizedError
+	errOnce sync.Once
 }
 
 func (r *Run) setError(e *dbdriver.NormalizedError) {
diff --git a/internal/serve/wire.go b/internal/serve/wire.go
index fffacb4..6f268c2 100644
--- a/internal/serve/wire.go
+++ b/internal/serve/wire.go
@@ -85,10 +85,11 @@ type columnsResult struct {
 
 // successResult is the final NDJSON line on a successful run.
 type successResult struct {
-	RunID        string `json:"runId"`
-	Success      bool   `json:"success"`
-	RowCount     int64  `json:"rowCount"`
-	RowsAffected *int64 `json:"rowsAffected,omitempty"`
+	RunID              string `json:"runId"`
+	Success            bool   `json:"success"`
+	RowCount           int64  `json:"rowCount"`
+	RowsAffected       *int64 `json:"rowsAffected,omitempty"`
+	ExecutedStatements int64  `json:"executedStatements,omitempty"`
 }
 
 // errorResult is the final NDJSON line on a failed (or canceled) run.
diff --git a/plan.md b/plan.md
index 38e28a7..f4b3920 100644
--- a/plan.md
+++ b/plan.md
@@ -529,7 +529,6 @@ Three commits on `murrayju/serve`, in this order:
 
 ## Follow-ups (out of scope for this branch)
 
-- Multi-result-set support: `sql.Rows` only iterates the first result, so multi-statement queries (e.g. two `SELECT`s in one Run) currently show only the first table.
-- `Decimal128` for NUMERIC instead of `Utf8` — needs a popsql-query upgrade too.
+- **Decimal128 for NUMERIC — declined.** Postgres `NUMERIC` accepts NaN, ±Infinity, and unbounded precision; Arrow `Decimal128` is 38 digits and can't carry any of those, so an implementation would need per-row fallback branching and an upstream change in popsql-query (which uses the same string encoding for the same reasons). The widget's table already gets `isNumeric: true` for right-align + sort, so the on-wire string is a non-issue for UX. Not worth doing.
 - Query timeout enforcement (the widget sends `timeout` but we ignore it).
 - Server-side `slog` logging + log levels (currently silent by design).
diff --git a/web/src/components/QueryPanel.tsx b/web/src/components/QueryPanel.tsx
index 7914a10..d497c0f 100644
--- a/web/src/components/QueryPanel.tsx
+++ b/web/src/components/QueryPanel.tsx
@@ -7,7 +7,9 @@ import {
   QueryWidgetProvider,
   TimescaleResultsCacheContextProvider,
 } from '@timescale/popsql-query-widget';
-import { useState } from 'react';
+import { useRef, useState } from 'react';
+
+import { countStatements } from '../lib/sql';
 
 interface Props {
   projectId: string;
@@ -21,6 +23,8 @@ interface Props {
 // in-process PG connection on the Go side).
 export function QueryPanel({ projectId, databaseId, databaseName }: Props) {
   const [query, setQuery] = useState(`-- ${databaseName}\nSELECT 1;\n`);
+  const [statementCount, setStatementCount] = useState(0);
+  const lastRunSQLRef = useRef<string>('');
 
   return (
     <TimescaleResultsCacheContextProvider baseUrl={window.location.origin}>
@@ -31,6 +35,29 @@ export function QueryPanel({ projectId, databaseId, databaseName }: Props) {
             query={query}
             onQueryChange={setQuery}
             sessionKey={`ghost-${databaseId}`}
+            runSelection
+            runButtonLabelWithSelection="Run selection"
+            onQueryRun={({ query: executedSQL }) => {
+              lastRunSQLRef.current = executedSQL;
+            }}
+            onQueryComplete={(args) => {
+              // Only surface the counter when the run actually succeeded;
+              // for errors / cancels, hide it to avoid implying anything
+              // about what got committed.
+              if ('rowsAffected' in args) {
+                setStatementCount(countStatements(lastRunSQLRef.current));
+              } else {
+                setStatementCount(0);
+              }
+            }}
+            renderToolbarAppendLeft={({ isRunning }) => {
+              if (isRunning || statementCount <= 1) return null;
+              return (
+                <span className="ml-2 text-xs text-slate-500">
+                  Executed {statementCount} statements
+                </span>
+              );
+            }}
             getExecuteQueryData={({ runId, query }) => ({
               engine: ExecuteQueryEngine.timescaleQuery,
               params: {
diff --git a/web/src/lib/sql.ts b/web/src/lib/sql.ts
new file mode 100644
index 0000000..c6c031d
--- /dev/null
+++ b/web/src/lib/sql.ts
@@ -0,0 +1,97 @@
+// countStatements walks `sql` once and counts top-level statements,
+// approximating what pgx's simple text protocol will execute when the widget
+// sends the editor contents joined by `; `. Comments, single-quoted strings
+// (with `''` escapes), double-quoted identifiers, and dollar-quoted blocks
+// are skipped so semicolons inside them don't inflate the count.
+//
+// This is an approximation, not a real parser — Unicode identifier rules,
+// nested block comments, and a few other corners aren't handled. Good enough
+// for displaying "Executed N statements" in the toolbar; the server-side
+// `executedStatements` field on the success line is the authoritative count.
+export function countStatements(sql: string): number {
+  let count = 0;
+  let nonWhitespaceInStmt = 0;
+  let i = 0;
+  const len = sql.length;
+
+  while (i < len) {
+    const c = sql[i];
+    const next = sql[i + 1];
+
+    // -- line comment
+    if (c === '-' && next === '-') {
+      i += 2;
+      while (i < len && sql[i] !== '\n') i++;
+      continue;
+    }
+    // /* block comment */ (not nested)
+    if (c === '/' && next === '*') {
+      i += 2;
+      while (i < len && !(sql[i] === '*' && sql[i + 1] === '/')) i++;
+      if (i < len) i += 2;
+      continue;
+    }
+    // single-quoted string '...' with '' escape
+    if (c === "'") {
+      nonWhitespaceInStmt++;
+      i++;
+      while (i < len) {
+        if (sql[i] === "'") {
+          if (sql[i + 1] === "'") {
+            i += 2;
+            continue;
+          }
+          i++;
+          break;
+        }
+        i++;
+      }
+      continue;
+    }
+    // double-quoted identifier "..." with "" escape
+    if (c === '"') {
+      nonWhitespaceInStmt++;
+      i++;
+      while (i < len) {
+        if (sql[i] === '"') {
+          if (sql[i + 1] === '"') {
+            i += 2;
+            continue;
+          }
+          i++;
+          break;
+        }
+        i++;
+      }
+      continue;
+    }
+    // dollar-quoted: $tag$ ... $tag$ (tag may be empty)
+    if (c === '$') {
+      const tagMatch = /^\$([A-Za-z_][A-Za-z0-9_]*)?\$/.exec(sql.slice(i));
+      if (tagMatch) {
+        const tag = tagMatch[0];
+        nonWhitespaceInStmt++;
+        i += tag.length;
+        const endIdx = sql.indexOf(tag, i);
+        if (endIdx === -1) {
+          i = len;
+        } else {
+          i = endIdx + tag.length;
+        }
+        continue;
+      }
+    }
+    // statement terminator
+    if (c === ';') {
+      if (nonWhitespaceInStmt > 0) count++;
+      nonWhitespaceInStmt = 0;
+      i++;
+      continue;
+    }
+    if (c !== undefined && /\S/.test(c)) nonWhitespaceInStmt++;
+    i++;
+  }
+
+  if (nonWhitespaceInStmt > 0) count++;
+  return count;
+}

From eb35a1accd5d27371e6fb7e88b77891310e96045 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 14:19:25 -0400
Subject: [PATCH 09/39] Preserve editor selection across Cmd+Enter
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The widget's execute-query action itself does not clear the editor
selection — calling editor.trigger('keyboard', 'execute-query', null)
from a script leaves it intact. But pressing Cmd+Enter through a real
keyboard event somehow collapses the selection to the document start
during the native event flow (Monaco's keybinding service interaction,
suspected), only on this path; the Run button click is fine.

Workaround: install our own editor action with the same keybindings
via QueryPanel's editorPlugins. Monaco prefers the later-registered
action, so ours takes priority on Cmd+Enter. We snapshot the
selection, dispatch the widget's execute-query action via
editor.trigger (which doesn't trigger the misbehavior), then restore
the selection if it was non-empty. Net effect: Cmd+Enter now matches
the button-click behavior.
---
 web/src/components/QueryPanel.tsx | 42 ++++++++++++++++++++++++++++++-
 1 file changed, 41 insertions(+), 1 deletion(-)

diff --git a/web/src/components/QueryPanel.tsx b/web/src/components/QueryPanel.tsx
index d497c0f..851ca00 100644
--- a/web/src/components/QueryPanel.tsx
+++ b/web/src/components/QueryPanel.tsx
@@ -7,10 +7,46 @@ import {
   QueryWidgetProvider,
   TimescaleResultsCacheContextProvider,
 } from '@timescale/popsql-query-widget';
-import { useRef, useState } from 'react';
+import { useMemo, useRef, useState } from 'react';
 
 import { countStatements } from '../lib/sql';
 
+// Monaco's KeyMod/KeyCode constants are numeric and stable; hardcoding
+// avoids dragging another copy of monaco-editor into this bundle just to
+// reference the enum values.
+const KEYMOD_CTRLCMD = 1 << 11; // 2048
+const KEYMOD_WINCTRL = 1 << 8; // 256
+const KEYCODE_ENTER = 3;
+
+// preserveSelectionPlugin keeps the editor selection intact when the user
+// fires the run-query keybinding. The widget's own `execute-query` action
+// somehow loses the selection (cursor jumps to the document start), even
+// though the equivalent button click does not. We register our own action
+// for the same keybindings; Monaco prefers later-registered actions, so
+// ours wins. We snapshot the selection, dispatch the widget's action via
+// `trigger`, then restore the selection.
+const preserveSelectionPlugin = {
+  id: 'preserve-selection-on-run',
+  init: ({ editor }: { editor: any }) => {
+    const disposer = editor.addAction({
+      id: 'ghost-execute-query-preserve-selection',
+      label: 'Execute query (preserve selection)',
+      keybindings: [
+        KEYMOD_CTRLCMD | KEYCODE_ENTER,
+        KEYMOD_WINCTRL | KEYCODE_ENTER,
+      ],
+      run: (ed: any) => {
+        const selection = ed.getSelection();
+        ed.trigger('keyboard', 'execute-query', null);
+        if (selection && !selection.isEmpty()) {
+          ed.setSelection(selection);
+        }
+      },
+    });
+    return [disposer];
+  },
+};
+
 interface Props {
   projectId: string;
   databaseId: string;
@@ -25,12 +61,16 @@ export function QueryPanel({ projectId, databaseId, databaseName }: Props) {
   const [query, setQuery] = useState(`-- ${databaseName}\nSELECT 1;\n`);
   const [statementCount, setStatementCount] = useState(0);
   const lastRunSQLRef = useRef<string>('');
+  // Plugin must be stable across renders so PopsqlEditor's initDeps don't
+  // think the plugin set changed and re-create the editor.
+  const editorPlugins = useMemo(() => [preserveSelectionPlugin] as any, []);
 
   return (
     <TimescaleResultsCacheContextProvider baseUrl={window.location.origin}>
       <QueryWidgetProvider theme="light">
         <ContextMenuProvider>
           <QueryWidget
+            editorPlugins={editorPlugins}
             id={`ghost-${databaseId}`}
             query={query}
             onQueryChange={setQuery}

From 04690dd31015ba5ff3b9d840e1436035337aeeef Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 14:56:39 -0400
Subject: [PATCH 10/39] newer bun

---
 bun     | 4 ++--
 plan.md | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/bun b/bun
index 9a54809..9d072df 100755
--- a/bun
+++ b/bun
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-version="bun-v1.3.11"
+version="bun-v1.3.14"
 scriptDir="$(cd "$(dirname "$0")" && pwd)"
 downloadDir="$scriptDir/download/bun/${version}"
 bunCmd="$downloadDir/bin/bun"
@@ -14,4 +14,4 @@ if [ ! -f "$bunCmd" ]; then
     curl -fsSL https://bun.sh/install | BUN_INSTALL="$downloadDir" bash "${bashArgs[@]}"
 fi
 
-exec "$bunCmd" "$@"
\ No newline at end of file
+exec "$bunCmd" "$@"
diff --git a/plan.md b/plan.md
index f4b3920..661b842 100644
--- a/plan.md
+++ b/plan.md
@@ -484,7 +484,7 @@ Key patterns inherited:
 
 ### `../ox/bun` self-bootstrap wrapper
 
-431-byte bash script. Pinned to `bun-v1.3.11`. Downloads to `./download/bun/<version>/bin/bun` on first invocation via the official `https://bun.sh/install` script with `BUN_INSTALL` env override. `exec`s the downloaded binary with all forwarded args.
+431-byte bash script. Pinned to `bun-v1.3.14`. Downloads to `./download/bun/<version>/bin/bun` on first invocation via the official `https://bun.sh/install` script with `BUN_INSTALL` env override. `exec`s the downloaded binary with all forwarded args.
 
 **Action**: copy verbatim to `./bun` in this repo; add `download/` to `.gitignore`.
 

From 124eb894632abf784a6f9795c96864659611b142 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 15:08:10 -0400
Subject: [PATCH 11/39] Replace useEffect-driven database selection with
 event-driven flow

Move the default-selection logic into the databases queryFn so it runs when
the query completes, and update the URL synchronously in the selection-change
handler. Extracts the default-picking logic into pickDefaultDatabaseId.
---
 web/src/app.tsx | 43 +++++++++++++++++++++++++------------------
 1 file changed, 25 insertions(+), 18 deletions(-)

diff --git a/web/src/app.tsx b/web/src/app.tsx
index cb49b44..fb3dc04 100644
--- a/web/src/app.tsx
+++ b/web/src/app.tsx
@@ -1,5 +1,5 @@
 import { useQuery } from '@tanstack/react-query';
-import { useEffect, useState } from 'react';
+import { useState } from 'react';
 import '@timescale/popsql-query-widget/index.css';
 
 import { QueryPanel } from './components/QueryPanel';
@@ -35,32 +35,39 @@ function setUrlDbId(id: string | null) {
   window.history.replaceState(null, '', url.toString());
 }
 
+function pickDefaultDatabaseId(databases: Database[]): string | null {
+  if (databases.length === 1) return databases[0]!.id;
+  const ready = databases.filter((db) => READY_STATUSES.has(db.status));
+  if (ready.length === 1) return ready[0]!.id;
+  return null;
+}
+
 export function App() {
   const bootstrap = useQuery({
     queryKey: ['bootstrap'],
     queryFn: () => fetchJSON<Bootstrap>('/api/bootstrap'),
   });
+  const [selectedId, setSelectedId] = useState<string | null>(getUrlDbId);
   const databases = useQuery({
     queryKey: ['databases'],
-    queryFn: () => fetchJSON<Database[]>('/api/databases'),
+    queryFn: async () => {
+      const data = await fetchJSON<Database[]>('/api/databases');
+      if (!getUrlDbId()) {
+        const defaultId = pickDefaultDatabaseId(data);
+        if (defaultId) {
+          setSelectedId(defaultId);
+          setUrlDbId(defaultId);
+        }
+      }
+      return data;
+    },
     refetchInterval: 10_000,
   });
 
-  const [selectedId, setSelectedId] = useState<string | null>(getUrlDbId);
-
-  useEffect(() => {
-    if (!databases.data || selectedId) return;
-    const ready = databases.data.find((db) => READY_STATUSES.has(db.status));
-    if (databases.data.length === 1) {
-      setSelectedId(databases.data[0]!.id);
-    } else if (ready && databases.data.filter((db) => READY_STATUSES.has(db.status)).length === 1) {
-      setSelectedId(ready.id);
-    }
-  }, [databases.data, selectedId]);
-
-  useEffect(() => {
-    setUrlDbId(selectedId);
-  }, [selectedId]);
+  const handleSelectionChange = (id: string | null) => {
+    setSelectedId(id);
+    setUrlDbId(id);
+  };
 
   const selected = databases.data?.find((db) => db.id === selectedId) ?? null;
 
@@ -77,7 +84,7 @@ export function App() {
               aria-label="Database"
               className="rounded border border-slate-300 bg-white px-2 py-1 text-sm focus:border-slate-500 focus:outline-none"
               value={selectedId ?? ''}
-              onChange={(e) => setSelectedId(e.target.value || null)}
+              onChange={(e) => handleSelectionChange(e.target.value || null)}
               disabled={databases.isLoading}
             >
               <option value="">

From 5fd220b762adcc55288cd43cb522185ef201640a Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 15:13:15 -0400
Subject: [PATCH 12/39] Move bun wrapper into web/

The bun wrapper is only used to build the web workspace, so it belongs
inside web/ rather than at the repo root. scripts/build-web.sh now calls
./bun from inside web/, and the bun download cache lives at web/download/.
---
 .gitignore           | 2 +-
 CLAUDE.md            | 2 +-
 scripts/build-web.sh | 4 ++--
 bun => web/bun       | 0
 4 files changed, 4 insertions(+), 4 deletions(-)
 rename bun => web/bun (100%)

diff --git a/.gitignore b/.gitignore
index eda5d7b..2f77570 100644
--- a/.gitignore
+++ b/.gitignore
@@ -62,7 +62,7 @@ todo.md
 new.md
 
 # ghost serve
-/download/
+web/download/
 web/node_modules/
 web/dist/
 web/.npmrc
diff --git a/CLAUDE.md b/CLAUDE.md
index 3ce84ca..dba94cc 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -14,7 +14,7 @@
   - **`internal/analytics/`** - Analytics event tracking with sensitive data redaction for flags, positional arguments, and MCP inputs.
   - **`internal/util/`** - General utilities: type conversion, duration formatting, path helpers, context-aware stdin reading, JSON/YAML serialization, and terminal detection.
 - **`docs/`** - Documentation. `docs/cli/` contains generated Markdown CLI reference docs (produced by `cmd/generate-docs`).
-- **`web/`** - Vite + React workspace for the `ghost serve` browser UI. Built via `scripts/build-web.sh` (which uses the self-bootstrapping `./bun` wrapper) into `web/dist/`, then synced into `internal/serve/web/` for the Go binary's `//go:embed` directive. Uses React 18 (the widget calls `findDOMNode` which was removed in React 19), Tailwind v3 (matches the widget's pinned version), TanStack Query for `/api/databases`/`/api/bootstrap` polling, and `vite-plugin-node-polyfills` for the widget's Buffer/crypto/process/stream shims (same list web-cloud uses). The widget's worker + wasm sidecars are emitted into `assets/` via a custom Vite plugin (ported from web-cloud) because Vite's static analysis misses the `new URL(<variable>, import.meta.url)` references inside the widget's worker chunk.
+- **`web/`** - Vite + React workspace for the `ghost serve` browser UI. Built via `scripts/build-web.sh` (which uses the self-bootstrapping `web/bun` wrapper) into `web/dist/`, then synced into `internal/serve/web/` for the Go binary's `//go:embed` directive. Uses React 18 (the widget calls `findDOMNode` which was removed in React 19), Tailwind v3 (matches the widget's pinned version), TanStack Query for `/api/databases`/`/api/bootstrap` polling, and `vite-plugin-node-polyfills` for the widget's Buffer/crypto/process/stream shims (same list web-cloud uses). The widget's worker + wasm sidecars are emitted into `assets/` via a custom Vite plugin (ported from web-cloud) because Vite's static analysis misses the `new URL(<variable>, import.meta.url)` references inside the widget's worker chunk.
 - **`scripts/`** - Build and installation scripts (install.sh, install.ps1, completions generation).
 - **`openapi.yaml`** - OpenAPI spec used to generate the API client. Should be kept in sync with the canonical spec in the `ghost-api` repo (see [Code Generation](#code-generation)).
 - **`.github/`** - GitHub Actions CI/CD workflows for testing and releases.
diff --git a/scripts/build-web.sh b/scripts/build-web.sh
index 12291c1..c3e5e06 100755
--- a/scripts/build-web.sh
+++ b/scripts/build-web.sh
@@ -15,8 +15,8 @@ if [ ! -f web/.npmrc ]; then
     cp web/.npmrc.example web/.npmrc
 fi
 
-(cd web && ../bun install)
-(cd web && ../bun run build)
+(cd web && ./bun install)
+(cd web && ./bun run build)
 
 embedDir="internal/serve/web"
 find "$embedDir" -mindepth 1 ! -name '.gitkeep' -delete
diff --git a/bun b/web/bun
similarity index 100%
rename from bun
rename to web/bun

From 5c8e30e4d03435775b612122e3eddfeb4aae3a07 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 15:18:01 -0400
Subject: [PATCH 13/39] fill the space

---
 web/src/components/QueryPanel.tsx | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/web/src/components/QueryPanel.tsx b/web/src/components/QueryPanel.tsx
index 851ca00..5bf403b 100644
--- a/web/src/components/QueryPanel.tsx
+++ b/web/src/components/QueryPanel.tsx
@@ -70,6 +70,8 @@ export function QueryPanel({ projectId, databaseId, databaseName }: Props) {
       <QueryWidgetProvider theme="light">
         <ContextMenuProvider>
           <QueryWidget
+            className="flex-auto"
+            resizeHandles="split"
             editorPlugins={editorPlugins}
             id={`ghost-${databaseId}`}
             query={query}

From 72a9eb51a3dfc30f78213ea04f2d68a1fc587417 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 15:38:11 -0400
Subject: [PATCH 14/39] Refresh credentials per request in ghost serve
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The serve command was capturing the API client and project ID at startup
and reusing them for the lifetime of the process. OAuth access tokens
expire after about an hour, so a long-running server would start returning
401 from /api/databases (and every other API call) once that happened.

Hold a *common.App reference instead and call app.Load(ctx) on each
request that needs API access — same pattern the MCP server uses. Load
re-runs refreshTokenIfNeeded, which renews the OAuth token via its
refresh token and persists the new access token to disk.
---
 internal/cmd/serve.go       | 10 +++---
 internal/serve/bootstrap.go | 23 +++++++-------
 internal/serve/databases.go | 62 ++++++++++++++++++-------------------
 internal/serve/execute.go   | 20 +++++++++---
 internal/serve/server.go    | 39 ++++++++++++++++-------
 internal/serve/session.go   | 14 +++++++--
 6 files changed, 99 insertions(+), 69 deletions(-)

diff --git a/internal/cmd/serve.go b/internal/cmd/serve.go
index 67c58f3..f2d36ce 100644
--- a/internal/cmd/serve.go
+++ b/internal/cmd/serve.go
@@ -27,16 +27,14 @@ the duration of this command — press Ctrl+C to stop it.`,
 		ValidArgsFunction: cobra.NoFileCompletions,
 		SilenceUsage:      true,
 		RunE: func(cmd *cobra.Command, _ []string) error {
-			client, projectID, err := app.GetClient()
-			if err != nil {
+			if _, _, err := app.GetClient(); err != nil {
 				return err
 			}
 
 			srv, err := serve.New(serve.Config{
-				Host:      host,
-				Port:      port,
-				Client:    client,
-				ProjectID: projectID,
+				Host: host,
+				Port: port,
+				App:  app,
 			})
 			if err != nil {
 				return err
diff --git a/internal/serve/bootstrap.go b/internal/serve/bootstrap.go
index 8528b31..05b5ab9 100644
--- a/internal/serve/bootstrap.go
+++ b/internal/serve/bootstrap.go
@@ -12,17 +12,16 @@ type bootstrapResponse struct {
 	Version   string `json:"version"`
 }
 
-func newBootstrapHandler(projectID string) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method != http.MethodGet {
-			http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
-			return
-		}
-		w.Header().Set("Content-Type", "application/json")
-		w.Header().Set("Cache-Control", "no-store")
-		_ = json.NewEncoder(w).Encode(bootstrapResponse{
-			ProjectID: projectID,
-			Version:   config.Version,
-		})
+func (s *Server) handleBootstrap(w http.ResponseWriter, r *http.Request) {
+	_, projectID, err := s.loadClient(r.Context())
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusUnauthorized)
+		return
+	}
+	w.Header().Set("Content-Type", "application/json")
+	w.Header().Set("Cache-Control", "no-store")
+	_ = json.NewEncoder(w).Encode(bootstrapResponse{
+		ProjectID: projectID,
+		Version:   config.Version,
 	})
 }
diff --git a/internal/serve/databases.go b/internal/serve/databases.go
index 4019201..1f3b9e8 100644
--- a/internal/serve/databases.go
+++ b/internal/serve/databases.go
@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"net/http"
 
-	"github.com/timescale/ghost/internal/api"
 	"github.com/timescale/ghost/internal/common"
 )
 
@@ -17,39 +16,38 @@ type databaseListItem struct {
 	Type   string `json:"type"`
 }
 
-func newDatabasesHandler(client api.ClientWithResponsesInterface, projectID string) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method != http.MethodGet {
-			http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
-			return
-		}
+func (s *Server) handleDatabases(w http.ResponseWriter, r *http.Request) {
+	client, projectID, err := s.loadClient(r.Context())
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusUnauthorized)
+		return
+	}
 
-		resp, err := client.ListDatabasesWithResponse(r.Context(), projectID)
-		if err != nil {
-			http.Error(w, fmt.Sprintf("list databases: %v", err), http.StatusBadGateway)
-			return
-		}
-		if resp.StatusCode() != http.StatusOK {
-			http.Error(w, common.ExitWithErrorFromStatusCode(resp.StatusCode(), resp.JSONDefault).Error(), resp.StatusCode())
-			return
-		}
-		if resp.JSON200 == nil {
-			http.Error(w, errors.New("empty response from API").Error(), http.StatusBadGateway)
-			return
-		}
+	resp, err := client.ListDatabasesWithResponse(r.Context(), projectID)
+	if err != nil {
+		http.Error(w, fmt.Sprintf("list databases: %v", err), http.StatusBadGateway)
+		return
+	}
+	if resp.StatusCode() != http.StatusOK {
+		http.Error(w, common.ExitWithErrorFromStatusCode(resp.StatusCode(), resp.JSONDefault).Error(), resp.StatusCode())
+		return
+	}
+	if resp.JSON200 == nil {
+		http.Error(w, errors.New("empty response from API").Error(), http.StatusBadGateway)
+		return
+	}
 
-		out := make([]databaseListItem, len(*resp.JSON200))
-		for i, db := range *resp.JSON200 {
-			out[i] = databaseListItem{
-				ID:     db.Id,
-				Name:   db.Name,
-				Status: string(db.Status),
-				Type:   string(db.Type),
-			}
+	out := make([]databaseListItem, len(*resp.JSON200))
+	for i, db := range *resp.JSON200 {
+		out[i] = databaseListItem{
+			ID:     db.Id,
+			Name:   db.Name,
+			Status: string(db.Status),
+			Type:   string(db.Type),
 		}
+	}
 
-		w.Header().Set("Content-Type", "application/json")
-		w.Header().Set("Cache-Control", "no-store")
-		_ = json.NewEncoder(w).Encode(out)
-	})
+	w.Header().Set("Content-Type", "application/json")
+	w.Header().Set("Cache-Control", "no-store")
+	_ = json.NewEncoder(w).Encode(out)
 }
diff --git a/internal/serve/execute.go b/internal/serve/execute.go
index 9f3076c..f141680 100644
--- a/internal/serve/execute.go
+++ b/internal/serve/execute.go
@@ -20,11 +20,16 @@ func (s *Server) handleExecuteQuery(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
 		return
 	}
-	if !s.checkProject(w, req.RunID, req.ProjectID) {
+	client, projectID, err := s.loadClient(r.Context())
+	if err != nil {
+		writeErrorTerminator(w, req.RunID, &dbdriver.NormalizedError{Message: err.Error(), Source: "ghost", Connect: true})
+		return
+	}
+	if !checkProject(w, req.RunID, req.ProjectID, projectID) {
 		return
 	}
 
-	driver, connErr := openDriverForService(r.Context(), s.cfg.Client, req.ProjectID, req.ServiceID)
+	driver, connErr := openDriverForService(r.Context(), client, req.ProjectID, req.ServiceID)
 	if connErr != nil {
 		ce := new(connectErr)
 		if errors.As(connErr, &ce) {
@@ -48,7 +53,12 @@ func (s *Server) handleExecuteSessionQuery(w http.ResponseWriter, r *http.Reques
 		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
 		return
 	}
-	if !s.checkProject(w, req.RunID, req.ProjectID) {
+	_, projectID, err := s.loadClient(r.Context())
+	if err != nil {
+		writeErrorTerminator(w, req.RunID, &dbdriver.NormalizedError{Message: err.Error(), Source: "ghost", Connect: true})
+		return
+	}
+	if !checkProject(w, req.RunID, req.ProjectID, projectID) {
 		return
 	}
 
@@ -231,8 +241,8 @@ func pickResultSetToSurface(results []bufferedResultSet) *bufferedResultSet {
 
 // checkProject rejects requests for a different project than the one the CLI
 // is logged into. Single-user defense in depth.
-func (s *Server) checkProject(w http.ResponseWriter, runID, projectID string) bool {
-	if projectID == s.cfg.ProjectID {
+func checkProject(w http.ResponseWriter, runID, requestProjectID, activeProjectID string) bool {
+	if requestProjectID == activeProjectID {
 		return true
 	}
 	writeErrorTerminator(w, runID, &dbdriver.NormalizedError{
diff --git a/internal/serve/server.go b/internal/serve/server.go
index c3b81b9..6250b33 100644
--- a/internal/serve/server.go
+++ b/internal/serve/server.go
@@ -11,6 +11,7 @@ import (
 	"time"
 
 	"github.com/timescale/ghost/internal/api"
+	"github.com/timescale/ghost/internal/common"
 )
 
 // Config configures a Server instance.
@@ -19,10 +20,10 @@ type Config struct {
 	Host string
 	// Port is the bind port. 0 lets the OS choose a free port.
 	Port int
-	// Client is the authenticated ghost-api client.
-	Client api.ClientWithResponsesInterface
-	// ProjectID is the active space/project ID.
-	ProjectID string
+	// App provides access to the ghost-api client and active project. Handlers
+	// call App.Load on each request so OAuth tokens are refreshed and the user
+	// can log in/out in another terminal without restarting the server.
+	App *common.App
 }
 
 // Server wraps the HTTP server and exposes the resolved listen address.
@@ -42,11 +43,8 @@ func New(cfg Config) (*Server, error) {
 	if cfg.Host == "" {
 		cfg.Host = "127.0.0.1"
 	}
-	if cfg.Client == nil {
-		return nil, errors.New("serve: api client is required")
-	}
-	if cfg.ProjectID == "" {
-		return nil, errors.New("serve: project id is required")
+	if cfg.App == nil {
+		return nil, errors.New("serve: app is required")
 	}
 
 	addr := net.JoinHostPort(cfg.Host, strconv.Itoa(cfg.Port))
@@ -65,8 +63,8 @@ func New(cfg Config) (*Server, error) {
 
 	mux := http.NewServeMux()
 	mux.Handle("GET /healthz", healthzHandler())
-	mux.Handle("GET /api/bootstrap", newBootstrapHandler(cfg.ProjectID))
-	mux.Handle("GET /api/databases", newDatabasesHandler(cfg.Client, cfg.ProjectID))
+	mux.Handle("GET /api/bootstrap", http.HandlerFunc(s.handleBootstrap))
+	mux.Handle("GET /api/databases", http.HandlerFunc(s.handleDatabases))
 	mux.Handle("POST /api/executeQuery", http.HandlerFunc(s.handleExecuteQuery))
 	mux.Handle("POST /api/executeSessionQuery", http.HandlerFunc(s.handleExecuteSessionQuery))
 	mux.Handle("POST /api/arrowResults", http.HandlerFunc(s.handleArrowResults))
@@ -118,3 +116,22 @@ func healthzHandler() http.Handler {
 		_ = json.NewEncoder(w).Encode(map[string]bool{"ok": true})
 	})
 }
+
+// loadClient reloads credentials from disk (refreshing the OAuth token if
+// needed) and returns a ghost-api client bound to the active project. Called
+// per request so a long-running server doesn't keep using a stale token after
+// it expires.
+func (s *Server) loadClient(ctx context.Context) (api.ClientWithResponsesInterface, string, error) {
+	_, client, projectID, err := s.cfg.App.Load(ctx)
+	if err != nil {
+		return nil, "", err
+	}
+	if client == nil {
+		_, _, clientErr := s.cfg.App.GetClient()
+		if clientErr != nil {
+			return nil, "", clientErr
+		}
+		return nil, "", errors.New("authentication required")
+	}
+	return client, projectID, nil
+}
diff --git a/internal/serve/session.go b/internal/serve/session.go
index 2324ea7..c3be5fa 100644
--- a/internal/serve/session.go
+++ b/internal/serve/session.go
@@ -25,7 +25,15 @@ func (s *Server) handleCreateSession(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Cache-Control", "no-store")
 	enc := json.NewEncoder(w)
 
-	if req.ProjectID != s.cfg.ProjectID {
+	client, projectID, err := s.loadClient(r.Context())
+	if err != nil {
+		_ = enc.Encode(createSessionResponse{
+			Success: false,
+			Error:   &dbdriver.NormalizedError{Message: err.Error(), Source: "ghost", Connect: true},
+		})
+		return
+	}
+	if req.ProjectID != projectID {
 		_ = enc.Encode(createSessionResponse{
 			Success: false,
 			Error: &dbdriver.NormalizedError{
@@ -36,7 +44,7 @@ func (s *Server) handleCreateSession(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	driver, err := openDriverForService(r.Context(), s.cfg.Client, req.ProjectID, req.ServiceID)
+	driver, err := openDriverForService(r.Context(), client, req.ProjectID, req.ServiceID)
 	if err != nil {
 		ce := new(connectErr)
 		if errors.As(err, &ce) {
@@ -44,7 +52,7 @@ func (s *Server) handleCreateSession(w http.ResponseWriter, r *http.Request) {
 		} else {
 			_ = enc.Encode(createSessionResponse{
 				Success: false,
-				Error: &dbdriver.NormalizedError{Message: err.Error(), Source: "ghost", Connect: true},
+				Error:   &dbdriver.NormalizedError{Message: err.Error(), Source: "ghost", Connect: true},
 			})
 		}
 		return

From 2eb9cb98c20fc73687c9d0fe1bd2ec793db5d211 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 15:38:53 -0400
Subject: [PATCH 15/39] min size

---
 web/src/app.tsx                   | 2 +-
 web/src/components/QueryPanel.tsx | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/web/src/app.tsx b/web/src/app.tsx
index fb3dc04..0a4a04d 100644
--- a/web/src/app.tsx
+++ b/web/src/app.tsx
@@ -103,7 +103,7 @@ export function App() {
           )}
         </div>
       </header>
-      <main className="flex flex-1 flex-col overflow-hidden p-2">
+      <main className="flex flex-auto flex-col overflow-hidden p-2">
         {bootstrap.isError ? (
           <div className="text-red-600">Failed to load bootstrap config</div>
         ) : !selected ? (
diff --git a/web/src/components/QueryPanel.tsx b/web/src/components/QueryPanel.tsx
index 5bf403b..0eebf2d 100644
--- a/web/src/components/QueryPanel.tsx
+++ b/web/src/components/QueryPanel.tsx
@@ -72,6 +72,7 @@ export function QueryPanel({ projectId, databaseId, databaseName }: Props) {
           <QueryWidget
             className="flex-auto"
             resizeHandles="split"
+            editorMinHeight={200}
             editorPlugins={editorPlugins}
             id={`ghost-${databaseId}`}
             query={query}

From 00ddc191385aa76b5d4a5d65cda0f1e623862a6a Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 15:40:11 -0400
Subject: [PATCH 16/39] Apply gofmt

---
 internal/serve/arrow.go         |  8 ++++++--
 internal/serve/connect.go       |  2 +-
 internal/serve/dbdriver/rows.go |  4 ++--
 internal/serve/wire.go          | 23 +++++++++++++----------
 4 files changed, 22 insertions(+), 15 deletions(-)

diff --git a/internal/serve/arrow.go b/internal/serve/arrow.go
index e305a1f..7b5c9e2 100644
--- a/internal/serve/arrow.go
+++ b/internal/serve/arrow.go
@@ -253,11 +253,15 @@ type stringish interface{ ~string | ~[]byte }
 
 func castToStr[T stringish](value T) string { return string(value) }
 
-type int64ish interface{ ~int | ~int8 | ~int16 | ~int32 | ~int64 }
+type int64ish interface {
+	~int | ~int8 | ~int16 | ~int32 | ~int64
+}
 
 func castToInt64[T int64ish](value T) int64 { return int64(value) }
 
-type uint64ish interface{ ~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 }
+type uint64ish interface {
+	~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64
+}
 
 func castToUint64[T uint64ish](value T) uint64 { return uint64(value) }
 
diff --git a/internal/serve/connect.go b/internal/serve/connect.go
index 7e64e7c..55797ce 100644
--- a/internal/serve/connect.go
+++ b/internal/serve/connect.go
@@ -19,7 +19,7 @@ type connectErr struct {
 	norm *dbdriver.NormalizedError
 }
 
-func (c *connectErr) Error() string { return c.norm.Message }
+func (c *connectErr) Error() string                         { return c.norm.Message }
 func (c *connectErr) Normalized() *dbdriver.NormalizedError { return c.norm }
 
 func newConnectErr(format string, args ...any) *connectErr {
diff --git a/internal/serve/dbdriver/rows.go b/internal/serve/dbdriver/rows.go
index b5b3a1b..74d262a 100644
--- a/internal/serve/dbdriver/rows.go
+++ b/internal/serve/dbdriver/rows.go
@@ -109,8 +109,8 @@ func (r *baseRows) buildColumn(deduper deduper, ct *sql.ColumnType) Column {
 	return column
 }
 
-func (r *baseRows) Metadata(ctx context.Context) (*Metadata, error)       { return nil, nil }
-func (r *baseRows) RowsAffected(ctx context.Context) (*int64, error)      { return nil, nil }
+func (r *baseRows) Metadata(ctx context.Context) (*Metadata, error)  { return nil, nil }
+func (r *baseRows) RowsAffected(ctx context.Context) (*int64, error) { return nil, nil }
 
 type deduper map[string]int
 
diff --git a/internal/serve/wire.go b/internal/serve/wire.go
index 6f268c2..ad83de9 100644
--- a/internal/serve/wire.go
+++ b/internal/serve/wire.go
@@ -1,6 +1,8 @@
 package serve
 
 import (
+	"strings"
+
 	"github.com/timescale/ghost/internal/serve/dbdriver"
 )
 
@@ -26,11 +28,12 @@ type executeQueryRequest struct {
 // array (widget's canonical field) and falls back to the raw query.
 func (r executeQueryRequest) SQL() string {
 	if len(r.Statements) > 0 {
-		joined := r.Statements[0]
+		var joined strings.Builder
+		joined.WriteString(r.Statements[0])
 		for _, s := range r.Statements[1:] {
-			joined += "; " + s
+			joined.WriteString("; " + s)
 		}
-		return joined
+		return joined.String()
 	}
 	return r.Query
 }
@@ -70,16 +73,16 @@ type sessionRefRequest struct {
 
 // createSessionResponse matches CreateSessionResponse (one of two shapes).
 type createSessionResponse struct {
-	Success bool                       `json:"success"`
-	ID      string                     `json:"id,omitempty"`
-	Error   *dbdriver.NormalizedError  `json:"error,omitempty"`
+	Success bool                      `json:"success"`
+	ID      string                    `json:"id,omitempty"`
+	Error   *dbdriver.NormalizedError `json:"error,omitempty"`
 }
 
 // columnsResult is the first NDJSON line written by executeQuery. The widget
 // uses 'columns' as the discriminator.
 type columnsResult struct {
-	RunID    string            `json:"runId"`
-	Columns  dbdriver.Columns  `json:"columns"`
+	RunID    string             `json:"runId"`
+	Columns  dbdriver.Columns   `json:"columns"`
 	Metadata *dbdriver.Metadata `json:"meta,omitempty"`
 }
 
@@ -94,8 +97,8 @@ type successResult struct {
 
 // errorResult is the final NDJSON line on a failed (or canceled) run.
 type errorResult struct {
-	RunID   string                   `json:"runId"`
-	Success bool                     `json:"success"`
+	RunID   string                    `json:"runId"`
+	Success bool                      `json:"success"`
 	Error   *dbdriver.NormalizedError `json:"error"`
 }
 

From 72cf1e50e71ceb3f9a8a97bbc8cfb671aacb9608 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 15:47:36 -0400
Subject: [PATCH 17/39] fix padding

---
 web/src/app.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/web/src/app.tsx b/web/src/app.tsx
index 0a4a04d..697edb3 100644
--- a/web/src/app.tsx
+++ b/web/src/app.tsx
@@ -103,7 +103,7 @@ export function App() {
           )}
         </div>
       </header>
-      <main className="flex flex-auto flex-col overflow-hidden p-2">
+      <main className="flex flex-auto flex-col overflow-hidden p-4">
         {bootstrap.isError ? (
           <div className="text-red-600">Failed to load bootstrap config</div>
         ) : !selected ? (

From 252142288b6a1a080a9bb900fb9372f9cd3e53cc Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 15:55:00 -0400
Subject: [PATCH 18/39] Persist serve UI state across reloads

The server's port is random by default, so localStorage (keyed by origin)
isn't reliable for restoring UI state. Instead, persist via a small JSON
file at <configDir>/serve-state.json behind GET/PUT /api/state.

What's persisted:
- selected database
- editor height
- editor SQL content
---
 internal/serve/server.go          |   5 ++
 internal/serve/state.go           | 113 ++++++++++++++++++++++++++++++
 web/src/app.tsx                   |  85 +++++++++++++++++++---
 web/src/components/QueryPanel.tsx |  19 ++++-
 4 files changed, 210 insertions(+), 12 deletions(-)
 create mode 100644 internal/serve/state.go

diff --git a/internal/serve/server.go b/internal/serve/server.go
index 6250b33..32b0305 100644
--- a/internal/serve/server.go
+++ b/internal/serve/server.go
@@ -34,6 +34,7 @@ type Server struct {
 	addr     string
 	runs     *runStore
 	sessions *sessionStore
+	state    *stateStore
 }
 
 // New constructs a Server with all routes registered. The listener is bound
@@ -53,12 +54,14 @@ func New(cfg Config) (*Server, error) {
 		return nil, fmt.Errorf("listen on %s: %w", addr, err)
 	}
 
+	configDir := cfg.App.GetConfig().ConfigDir
 	s := &Server{
 		cfg:      cfg,
 		ln:       ln,
 		addr:     ln.Addr().String(),
 		runs:     newRunStore(),
 		sessions: newSessionStore(),
+		state:    newStateStore(configDir),
 	}
 
 	mux := http.NewServeMux()
@@ -72,6 +75,8 @@ func New(cfg Config) (*Server, error) {
 	mux.Handle("POST /api/closeSession", http.HandlerFunc(s.handleCloseSession))
 	mux.Handle("POST /api/sessionEvents", http.HandlerFunc(s.handleSessionEvents))
 	mux.Handle("POST /api/cancelRun", http.HandlerFunc(s.handleCancelRun))
+	mux.Handle("GET /api/state", http.HandlerFunc(s.handleGetState))
+	mux.Handle("PUT /api/state", http.HandlerFunc(s.handlePutState))
 	mux.Handle("/", newAssetHandler())
 
 	s.srv = &http.Server{Handler: mux, ReadHeaderTimeout: 10 * time.Second}
diff --git a/internal/serve/state.go b/internal/serve/state.go
new file mode 100644
index 0000000..cd6b6a9
--- /dev/null
+++ b/internal/serve/state.go
@@ -0,0 +1,113 @@
+package serve
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io/fs"
+	"net/http"
+	"os"
+	"path/filepath"
+	"sync"
+)
+
+// serveState is the persisted UI state for `ghost serve`. Pointer fields let
+// callers omit values they don't want to overwrite (encoded with omitempty).
+type serveState struct {
+	SelectedDatabaseID *string `json:"selectedDatabaseId,omitempty"`
+	EditorHeight       *int    `json:"editorHeight,omitempty"`
+	EditorSQL          *string `json:"editorSql,omitempty"`
+}
+
+const stateFileName = "serve-state.json"
+
+// stateStore persists serveState to a JSON file in the user's config dir.
+// Writes are atomic (temp file + rename) and serialized via a mutex so
+// concurrent PUTs can't interleave.
+type stateStore struct {
+	path string
+	lock sync.Mutex
+}
+
+func newStateStore(configDir string) *stateStore {
+	return &stateStore{path: filepath.Join(configDir, stateFileName)}
+}
+
+func (s *stateStore) load() (serveState, error) {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	data, err := os.ReadFile(s.path)
+	if err != nil {
+		if errors.Is(err, fs.ErrNotExist) {
+			return serveState{}, nil
+		}
+		return serveState{}, fmt.Errorf("read state file: %w", err)
+	}
+	var state serveState
+	if err := json.Unmarshal(data, &state); err != nil {
+		return serveState{}, fmt.Errorf("parse state file: %w", err)
+	}
+	return state, nil
+}
+
+func (s *stateStore) save(state serveState) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	data, err := json.MarshalIndent(state, "", "  ")
+	if err != nil {
+		return fmt.Errorf("encode state: %w", err)
+	}
+
+	dir := filepath.Dir(s.path)
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return fmt.Errorf("create config dir: %w", err)
+	}
+
+	tmp, err := os.CreateTemp(dir, ".serve-state.json.tmp")
+	if err != nil {
+		return fmt.Errorf("create temp file: %w", err)
+	}
+	tmpName := tmp.Name()
+	defer os.Remove(tmpName)
+
+	if _, err := tmp.Write(data); err != nil {
+		tmp.Close()
+		return fmt.Errorf("write temp file: %w", err)
+	}
+	if err := tmp.Close(); err != nil {
+		return fmt.Errorf("close temp file: %w", err)
+	}
+	if err := os.Chmod(tmpName, 0644); err != nil {
+		return fmt.Errorf("chmod temp file: %w", err)
+	}
+	if err := os.Rename(tmpName, s.path); err != nil {
+		return fmt.Errorf("rename temp file: %w", err)
+	}
+	return nil
+}
+
+func (s *Server) handleGetState(w http.ResponseWriter, _ *http.Request) {
+	state, err := s.state.load()
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	w.Header().Set("Content-Type", "application/json")
+	w.Header().Set("Cache-Control", "no-store")
+	_ = json.NewEncoder(w).Encode(state)
+}
+
+func (s *Server) handlePutState(w http.ResponseWriter, r *http.Request) {
+	var state serveState
+	if err := json.NewDecoder(r.Body).Decode(&state); err != nil {
+		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		return
+	}
+	if err := s.state.save(state); err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	w.WriteHeader(http.StatusNoContent)
+}
diff --git a/web/src/app.tsx b/web/src/app.tsx
index 697edb3..c9e906d 100644
--- a/web/src/app.tsx
+++ b/web/src/app.tsx
@@ -1,5 +1,5 @@
 import { useQuery } from '@tanstack/react-query';
-import { useState } from 'react';
+import { useEffect, useRef, useState } from 'react';
 import '@timescale/popsql-query-widget/index.css';
 
 import { QueryPanel } from './components/QueryPanel';
@@ -16,13 +16,29 @@ interface Database {
   type?: string;
 }
 
+interface ServeState {
+  selectedDatabaseId?: string;
+  editorHeight?: number;
+  editorSql?: string;
+}
+
 async function fetchJSON<T>(path: string): Promise<T> {
   const res = await fetch(path);
   if (!res.ok) throw new Error(`${path}: ${res.status} ${res.statusText}`);
   return res.json() as Promise<T>;
 }
 
+async function putJSON(path: string, body: unknown): Promise<void> {
+  const res = await fetch(path, {
+    method: 'PUT',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(body),
+  });
+  if (!res.ok) throw new Error(`${path}: ${res.status} ${res.statusText}`);
+}
+
 const READY_STATUSES = new Set(['ready', 'running']);
+const DEFAULT_EDITOR_HEIGHT = 240;
 
 function getUrlDbId(): string | null {
   return new URLSearchParams(window.location.search).get('db');
@@ -47,12 +63,45 @@ export function App() {
     queryKey: ['bootstrap'],
     queryFn: () => fetchJSON<Bootstrap>('/api/bootstrap'),
   });
-  const [selectedId, setSelectedId] = useState<string | null>(getUrlDbId);
+  const persistedState = useQuery({
+    queryKey: ['state'],
+    queryFn: () => fetchJSON<ServeState>('/api/state'),
+    staleTime: Infinity,
+    refetchOnWindowFocus: false,
+  });
+
+  if (bootstrap.isError || persistedState.isError) {
+    return (
+      <div className="flex h-full items-center justify-center text-red-600">
+        Failed to load app config
+      </div>
+    );
+  }
+  if (!bootstrap.data || !persistedState.data) {
+    return null;
+  }
+  return <ReadyApp bootstrap={bootstrap.data} initialState={persistedState.data} />;
+}
+
+interface ReadyAppProps {
+  bootstrap: Bootstrap;
+  initialState: ServeState;
+}
+
+function ReadyApp({ bootstrap, initialState }: ReadyAppProps) {
+  const [selectedId, setSelectedId] = useState<string | null>(
+    () => getUrlDbId() ?? initialState.selectedDatabaseId ?? null,
+  );
+  const [editorSql, setEditorSql] = useState<string>(initialState.editorSql ?? '');
+  const [editorHeight, setEditorHeight] = useState<number>(
+    initialState.editorHeight ?? DEFAULT_EDITOR_HEIGHT,
+  );
+
   const databases = useQuery({
     queryKey: ['databases'],
     queryFn: async () => {
       const data = await fetchJSON<Database[]>('/api/databases');
-      if (!getUrlDbId()) {
+      if (!getUrlDbId() && !selectedId) {
         const defaultId = pickDefaultDatabaseId(data);
         if (defaultId) {
           setSelectedId(defaultId);
@@ -64,6 +113,24 @@ export function App() {
     refetchInterval: 10_000,
   });
 
+  // Debounce-persist whenever any tracked state changes. Skip the first run
+  // so we don't immediately rewrite the file with values we just read.
+  const isFirstSave = useRef(true);
+  useEffect(() => {
+    if (isFirstSave.current) {
+      isFirstSave.current = false;
+      return;
+    }
+    const handle = setTimeout(() => {
+      void putJSON('/api/state', {
+        selectedDatabaseId: selectedId ?? undefined,
+        editorSql,
+        editorHeight,
+      });
+    }, 400);
+    return () => clearTimeout(handle);
+  }, [selectedId, editorSql, editorHeight]);
+
   const handleSelectionChange = (id: string | null) => {
     setSelectedId(id);
     setUrlDbId(id);
@@ -104,17 +171,17 @@ export function App() {
         </div>
       </header>
       <main className="flex flex-auto flex-col overflow-hidden p-4">
-        {bootstrap.isError ? (
-          <div className="text-red-600">Failed to load bootstrap config</div>
-        ) : !selected ? (
+        {!selected ? (
           <div className="text-slate-500">Select a database to run queries.</div>
-        ) : !bootstrap.data ? (
-          <div className="text-slate-500">Loading…</div>
         ) : (
           <QueryPanel
-            projectId={bootstrap.data.projectId}
+            projectId={bootstrap.projectId}
             databaseId={selected.id}
             databaseName={selected.name}
+            query={editorSql}
+            onQueryChange={setEditorSql}
+            editorHeight={editorHeight}
+            onResizeEditor={setEditorHeight}
           />
         )}
       </main>
diff --git a/web/src/components/QueryPanel.tsx b/web/src/components/QueryPanel.tsx
index 0eebf2d..917470f 100644
--- a/web/src/components/QueryPanel.tsx
+++ b/web/src/components/QueryPanel.tsx
@@ -51,14 +51,25 @@ interface Props {
   projectId: string;
   databaseId: string;
   databaseName: string;
+  query: string;
+  onQueryChange: (next: string) => void;
+  editorHeight: number;
+  onResizeEditor: (height: number) => void;
 }
 
 // QueryPanel renders the PopSQL query widget targeted at a single ghost
 // database. The sessionKey is derived from the database ID so switching
 // databases automatically invalidates the session (and tears down the
 // in-process PG connection on the Go side).
-export function QueryPanel({ projectId, databaseId, databaseName }: Props) {
-  const [query, setQuery] = useState(`-- ${databaseName}\nSELECT 1;\n`);
+export function QueryPanel({
+  projectId,
+  databaseId,
+  databaseName: _databaseName,
+  query,
+  onQueryChange,
+  editorHeight,
+  onResizeEditor,
+}: Props) {
   const [statementCount, setStatementCount] = useState(0);
   const lastRunSQLRef = useRef<string>('');
   // Plugin must be stable across renders so PopsqlEditor's initDeps don't
@@ -73,10 +84,12 @@ export function QueryPanel({ projectId, databaseId, databaseName }: Props) {
             className="flex-auto"
             resizeHandles="split"
             editorMinHeight={200}
+            editorHeight={editorHeight}
+            onResizeEditor={onResizeEditor}
             editorPlugins={editorPlugins}
             id={`ghost-${databaseId}`}
             query={query}
-            onQueryChange={setQuery}
+            onQueryChange={onQueryChange}
             sessionKey={`ghost-${databaseId}`}
             runSelection
             runButtonLabelWithSelection="Run selection"

From e46b7343194fce7b0bbcdda20ec80a3dc0547015 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 15:58:51 -0400
Subject: [PATCH 19/39] Sync URL with restored database selection

When the selected database is restored from saved state (no ?db= in URL),
also write it back to the URL so the address bar reflects the actual
selection.
---
 web/src/app.tsx | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/web/src/app.tsx b/web/src/app.tsx
index c9e906d..d5f6ade 100644
--- a/web/src/app.tsx
+++ b/web/src/app.tsx
@@ -89,9 +89,11 @@ interface ReadyAppProps {
 }
 
 function ReadyApp({ bootstrap, initialState }: ReadyAppProps) {
-  const [selectedId, setSelectedId] = useState<string | null>(
-    () => getUrlDbId() ?? initialState.selectedDatabaseId ?? null,
-  );
+  const [selectedId, setSelectedId] = useState<string | null>(() => {
+    const initial = getUrlDbId() ?? initialState.selectedDatabaseId ?? null;
+    if (initial) setUrlDbId(initial);
+    return initial;
+  });
   const [editorSql, setEditorSql] = useState<string>(initialState.editorSql ?? '');
   const [editorHeight, setEditorHeight] = useState<number>(
     initialState.editorHeight ?? DEFAULT_EDITOR_HEIGHT,

From 73ff68788d2488fcfbc745aadd74a55354f50559 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Fri, 29 May 2026 16:06:33 -0400
Subject: [PATCH 20/39] Extract serve UI state into a Zustand store

Replaces the useEffect+isFirstSave debounce pattern with explicit setter
actions that schedule a debounced PUT inline. URL ?db= sync also lives
on the setter, so the URL and persisted state stay in lockstep.

App still gates render on hydration so QueryWidget mounts with its
final initial values.
---
 web/bun.lock     |  3 ++
 web/package.json |  3 +-
 web/src/app.tsx  | 90 ++++++++++--------------------------------------
 web/src/store.ts | 88 ++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 112 insertions(+), 72 deletions(-)
 create mode 100644 web/src/store.ts

diff --git a/web/bun.lock b/web/bun.lock
index dfcc8cf..3a7c37f 100644
--- a/web/bun.lock
+++ b/web/bun.lock
@@ -10,6 +10,7 @@
         "framer-motion": "^12.0.0",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
+        "zustand": "^5.0.14",
       },
       "devDependencies": {
         "@types/node": "^22.10.0",
@@ -646,6 +647,8 @@
 
     "yocto-queue": ["yocto-queue@0.1.0", "", {}, "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q=="],
 
+    "zustand": ["zustand@5.0.14", "", { "peerDependencies": { "@types/react": ">=18.0.0", "immer": ">=9.0.6", "react": ">=18.0.0", "use-sync-external-store": ">=1.2.0" }, "optionalPeers": ["@types/react", "immer", "react", "use-sync-external-store"] }, "sha512-/8tAspM5LMPr28b3fwLYrtdj77ECpfZviaP75CMTnwO8ISyaE4GDIG/9rDDYq/cH9D2Xw2A2RXglLInmVBQB/g=="],
+
     "anymatch/picomatch": ["picomatch@2.3.2", "", {}, "sha512-V7+vQEJ06Z+c5tSye8S+nHUfI51xoXIXjHQ99cQtKUkQqqO1kO/KCJUfZXuB47h/YBlDhah2H3hdUGXn8ie0oA=="],
 
     "asn1.js/bn.js": ["bn.js@4.12.3", "", {}, "sha512-fGTi3gxV/23FTYdAoUtLYp6qySe2KE3teyZitipKNRuVYcBkoP/bB3guXN/XVKUe9mxCHXnc9C4ocyz8OmgN0g=="],
diff --git a/web/package.json b/web/package.json
index d8561ee..3c7f658 100644
--- a/web/package.json
+++ b/web/package.json
@@ -14,7 +14,8 @@
     "@timescale/popsql-query-widget": "0.0.0-dev.156",
     "framer-motion": "^12.0.0",
     "react": "^18.3.1",
-    "react-dom": "^18.3.1"
+    "react-dom": "^18.3.1",
+    "zustand": "^5.0.14"
   },
   "devDependencies": {
     "@types/node": "^22.10.0",
diff --git a/web/src/app.tsx b/web/src/app.tsx
index d5f6ade..245f200 100644
--- a/web/src/app.tsx
+++ b/web/src/app.tsx
@@ -1,8 +1,8 @@
 import { useQuery } from '@tanstack/react-query';
-import { useEffect, useRef, useState } from 'react';
 import '@timescale/popsql-query-widget/index.css';
 
 import { QueryPanel } from './components/QueryPanel';
+import { useServeStore, type PersistedState } from './store';
 
 interface Bootstrap {
   projectId: string;
@@ -16,40 +16,13 @@ interface Database {
   type?: string;
 }
 
-interface ServeState {
-  selectedDatabaseId?: string;
-  editorHeight?: number;
-  editorSql?: string;
-}
-
 async function fetchJSON<T>(path: string): Promise<T> {
   const res = await fetch(path);
   if (!res.ok) throw new Error(`${path}: ${res.status} ${res.statusText}`);
   return res.json() as Promise<T>;
 }
 
-async function putJSON(path: string, body: unknown): Promise<void> {
-  const res = await fetch(path, {
-    method: 'PUT',
-    headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify(body),
-  });
-  if (!res.ok) throw new Error(`${path}: ${res.status} ${res.statusText}`);
-}
-
 const READY_STATUSES = new Set(['ready', 'running']);
-const DEFAULT_EDITOR_HEIGHT = 240;
-
-function getUrlDbId(): string | null {
-  return new URLSearchParams(window.location.search).get('db');
-}
-
-function setUrlDbId(id: string | null) {
-  const url = new URL(window.location.href);
-  if (id) url.searchParams.set('db', id);
-  else url.searchParams.delete('db');
-  window.history.replaceState(null, '', url.toString());
-}
 
 function pickDefaultDatabaseId(databases: Database[]): string | null {
   if (databases.length === 1) return databases[0]!.id;
@@ -65,10 +38,15 @@ export function App() {
   });
   const persistedState = useQuery({
     queryKey: ['state'],
-    queryFn: () => fetchJSON<ServeState>('/api/state'),
+    queryFn: async () => {
+      const data = await fetchJSON<PersistedState>('/api/state');
+      useServeStore.getState().hydrate(data);
+      return data;
+    },
     staleTime: Infinity,
     refetchOnWindowFocus: false,
   });
+  const hydrated = useServeStore((s) => s.hydrated);
 
   if (bootstrap.isError || persistedState.isError) {
     return (
@@ -77,67 +55,37 @@ export function App() {
       </div>
     );
   }
-  if (!bootstrap.data || !persistedState.data) {
+  if (!bootstrap.data || !hydrated) {
     return null;
   }
-  return <ReadyApp bootstrap={bootstrap.data} initialState={persistedState.data} />;
+  return <ReadyApp bootstrap={bootstrap.data} />;
 }
 
 interface ReadyAppProps {
   bootstrap: Bootstrap;
-  initialState: ServeState;
 }
 
-function ReadyApp({ bootstrap, initialState }: ReadyAppProps) {
-  const [selectedId, setSelectedId] = useState<string | null>(() => {
-    const initial = getUrlDbId() ?? initialState.selectedDatabaseId ?? null;
-    if (initial) setUrlDbId(initial);
-    return initial;
-  });
-  const [editorSql, setEditorSql] = useState<string>(initialState.editorSql ?? '');
-  const [editorHeight, setEditorHeight] = useState<number>(
-    initialState.editorHeight ?? DEFAULT_EDITOR_HEIGHT,
-  );
+function ReadyApp({ bootstrap }: ReadyAppProps) {
+  const selectedId = useServeStore((s) => s.selectedDatabaseId);
+  const setSelectedDatabaseId = useServeStore((s) => s.setSelectedDatabaseId);
+  const editorSql = useServeStore((s) => s.editorSql);
+  const setEditorSql = useServeStore((s) => s.setEditorSql);
+  const editorHeight = useServeStore((s) => s.editorHeight);
+  const setEditorHeight = useServeStore((s) => s.setEditorHeight);
 
   const databases = useQuery({
     queryKey: ['databases'],
     queryFn: async () => {
       const data = await fetchJSON<Database[]>('/api/databases');
-      if (!getUrlDbId() && !selectedId) {
+      if (!useServeStore.getState().selectedDatabaseId) {
         const defaultId = pickDefaultDatabaseId(data);
-        if (defaultId) {
-          setSelectedId(defaultId);
-          setUrlDbId(defaultId);
-        }
+        if (defaultId) useServeStore.getState().setSelectedDatabaseId(defaultId);
       }
       return data;
     },
     refetchInterval: 10_000,
   });
 
-  // Debounce-persist whenever any tracked state changes. Skip the first run
-  // so we don't immediately rewrite the file with values we just read.
-  const isFirstSave = useRef(true);
-  useEffect(() => {
-    if (isFirstSave.current) {
-      isFirstSave.current = false;
-      return;
-    }
-    const handle = setTimeout(() => {
-      void putJSON('/api/state', {
-        selectedDatabaseId: selectedId ?? undefined,
-        editorSql,
-        editorHeight,
-      });
-    }, 400);
-    return () => clearTimeout(handle);
-  }, [selectedId, editorSql, editorHeight]);
-
-  const handleSelectionChange = (id: string | null) => {
-    setSelectedId(id);
-    setUrlDbId(id);
-  };
-
   const selected = databases.data?.find((db) => db.id === selectedId) ?? null;
 
   return (
@@ -153,7 +101,7 @@ function ReadyApp({ bootstrap, initialState }: ReadyAppProps) {
               aria-label="Database"
               className="rounded border border-slate-300 bg-white px-2 py-1 text-sm focus:border-slate-500 focus:outline-none"
               value={selectedId ?? ''}
-              onChange={(e) => handleSelectionChange(e.target.value || null)}
+              onChange={(e) => setSelectedDatabaseId(e.target.value || null)}
               disabled={databases.isLoading}
             >
               <option value="">
diff --git a/web/src/store.ts b/web/src/store.ts
new file mode 100644
index 0000000..c3cad6e
--- /dev/null
+++ b/web/src/store.ts
@@ -0,0 +1,88 @@
+import { create } from 'zustand';
+
+export interface PersistedState {
+  selectedDatabaseId?: string;
+  editorHeight?: number;
+  editorSql?: string;
+}
+
+interface ServeStore {
+  hydrated: boolean;
+  selectedDatabaseId: string | null;
+  editorHeight: number;
+  editorSql: string;
+  hydrate: (saved: PersistedState) => void;
+  setSelectedDatabaseId: (id: string | null) => void;
+  setEditorSql: (sql: string) => void;
+  setEditorHeight: (height: number) => void;
+}
+
+export const DEFAULT_EDITOR_HEIGHT = 240;
+
+function getUrlDbId(): string | null {
+  return new URLSearchParams(window.location.search).get('db');
+}
+
+function setUrlDbId(id: string | null) {
+  const url = new URL(window.location.href);
+  if (id) url.searchParams.set('db', id);
+  else url.searchParams.delete('db');
+  window.history.replaceState(null, '', url.toString());
+}
+
+let saveTimer: ReturnType<typeof setTimeout> | null = null;
+const SAVE_DEBOUNCE_MS = 400;
+
+function schedulePersist(snapshot: PersistedState) {
+  if (saveTimer) clearTimeout(saveTimer);
+  saveTimer = setTimeout(() => {
+    saveTimer = null;
+    void fetch('/api/state', {
+      method: 'PUT',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify(snapshot),
+    });
+  }, SAVE_DEBOUNCE_MS);
+}
+
+function snapshotFor(store: ServeStore): PersistedState {
+  return {
+    selectedDatabaseId: store.selectedDatabaseId ?? undefined,
+    editorSql: store.editorSql,
+    editorHeight: store.editorHeight,
+  };
+}
+
+export const useServeStore = create<ServeStore>((set, get) => ({
+  hydrated: false,
+  selectedDatabaseId: null,
+  editorHeight: DEFAULT_EDITOR_HEIGHT,
+  editorSql: '',
+  hydrate: (saved) => {
+    // URL takes precedence over saved state for the selected DB. Write the
+    // resolved id back to the URL so the address bar always reflects the
+    // active selection (matches the behavior of later setSelectedDatabaseId
+    // calls).
+    const selectedDatabaseId = getUrlDbId() ?? saved.selectedDatabaseId ?? null;
+    if (selectedDatabaseId) setUrlDbId(selectedDatabaseId);
+    set({
+      hydrated: true,
+      selectedDatabaseId,
+      editorSql: saved.editorSql ?? '',
+      editorHeight: saved.editorHeight ?? DEFAULT_EDITOR_HEIGHT,
+    });
+  },
+  setSelectedDatabaseId: (id) => {
+    set({ selectedDatabaseId: id });
+    setUrlDbId(id);
+    schedulePersist(snapshotFor(get()));
+  },
+  setEditorSql: (sql) => {
+    set({ editorSql: sql });
+    schedulePersist(snapshotFor(get()));
+  },
+  setEditorHeight: (height) => {
+    set({ editorHeight: height });
+    schedulePersist(snapshotFor(get()));
+  },
+}));

From a71a0a1b300b72a4e5988856c7780a857143b554 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Mon, 1 Jun 2026 12:19:03 -0400
Subject: [PATCH 21/39] Use widget-provided statementCount instead of
 client-side parser

The query widget now surfaces the worker's identifyCommands split on
the onQueryComplete callback (via @timescale/popsql-query-widget
0.0.0-dev.157). Use that instead of our own countStatements walk,
and drop the helper + the lastRunSQLRef bookkeeping that fed it.
---
 web/bun.lock                      |  4 +-
 web/package.json                  |  2 +-
 web/src/components/QueryPanel.tsx | 10 +---
 web/src/lib/sql.ts                | 97 -------------------------------
 4 files changed, 5 insertions(+), 108 deletions(-)
 delete mode 100644 web/src/lib/sql.ts

diff --git a/web/bun.lock b/web/bun.lock
index 3a7c37f..56cc5a4 100644
--- a/web/bun.lock
+++ b/web/bun.lock
@@ -6,7 +6,7 @@
       "name": "@ghost-cli/web",
       "dependencies": {
         "@tanstack/react-query": "^5.62.7",
-        "@timescale/popsql-query-widget": "0.0.0-dev.156",
+        "@timescale/popsql-query-widget": "0.0.0-dev.157",
         "framer-motion": "^12.0.0",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
@@ -195,7 +195,7 @@
 
     "@tanstack/react-query": ["@tanstack/react-query@5.100.14", "", { "dependencies": { "@tanstack/query-core": "5.100.14" }, "peerDependencies": { "react": "^18 || ^19" } }, "sha512-oOr6aRdSFEwWhzxEkD/9ZcItM3+LjBSkeVmadWKwUssAHTsqd/7bOjWrX4AbvEkoEhgAxzN0Xk6H/aYzXiYBAw=="],
 
-    "@timescale/popsql-query-widget": ["@timescale/popsql-query-widget@0.0.0-dev.156", "https://npm.pkg.github.com/download/@timescale/popsql-query-widget/0.0.0-dev.156/1a2659b7cd771139256d59ba9655dd53b757a598", { "peerDependencies": { "framer-motion": "12.x", "react": "17.x || 18.x", "react-dom": "17.x || 18.x" } }, "sha512-IGg2Cn25MwvjVKpLnwquNSGtLeFehWMWcnEokJJJEpjB4jmvTkZfSssWd8TAP2qR/rYee2AyzfmcY0DKanokrQ=="],
+    "@timescale/popsql-query-widget": ["@timescale/popsql-query-widget@0.0.0-dev.157", "https://npm.pkg.github.com/download/@timescale/popsql-query-widget/0.0.0-dev.157/2b5257d16e2eee2242bc4672a2983110db77c66a", { "peerDependencies": { "framer-motion": "12.x", "react": "17.x || 18.x", "react-dom": "17.x || 18.x" } }, "sha512-ZD83cFHQZEr/hV3j1S9vpNsHsTVFWbuUVxPws8yitx1tw9A2EdTy+A2s2FotHAcBvnGg40PLsKL0O34zu5KQ1A=="],
 
     "@types/babel__core": ["@types/babel__core@7.20.5", "", { "dependencies": { "@babel/parser": "^7.20.7", "@babel/types": "^7.20.7", "@types/babel__generator": "*", "@types/babel__template": "*", "@types/babel__traverse": "*" } }, "sha512-qoQprZvz5wQFJwMDqeseRXWv3rqMvhgpbXFfVyWhbx9X47POIA6i/+dXefEmZKoAgOaTdaIgNSMqMIU61yRyzA=="],
 
diff --git a/web/package.json b/web/package.json
index 3c7f658..4f09eb8 100644
--- a/web/package.json
+++ b/web/package.json
@@ -11,7 +11,7 @@
   },
   "dependencies": {
     "@tanstack/react-query": "^5.62.7",
-    "@timescale/popsql-query-widget": "0.0.0-dev.156",
+    "@timescale/popsql-query-widget": "0.0.0-dev.157",
     "framer-motion": "^12.0.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
diff --git a/web/src/components/QueryPanel.tsx b/web/src/components/QueryPanel.tsx
index 917470f..940329a 100644
--- a/web/src/components/QueryPanel.tsx
+++ b/web/src/components/QueryPanel.tsx
@@ -7,9 +7,7 @@ import {
   QueryWidgetProvider,
   TimescaleResultsCacheContextProvider,
 } from '@timescale/popsql-query-widget';
-import { useMemo, useRef, useState } from 'react';
-
-import { countStatements } from '../lib/sql';
+import { useMemo, useState } from 'react';
 
 // Monaco's KeyMod/KeyCode constants are numeric and stable; hardcoding
 // avoids dragging another copy of monaco-editor into this bundle just to
@@ -71,7 +69,6 @@ export function QueryPanel({
   onResizeEditor,
 }: Props) {
   const [statementCount, setStatementCount] = useState(0);
-  const lastRunSQLRef = useRef<string>('');
   // Plugin must be stable across renders so PopsqlEditor's initDeps don't
   // think the plugin set changed and re-create the editor.
   const editorPlugins = useMemo(() => [preserveSelectionPlugin] as any, []);
@@ -93,15 +90,12 @@ export function QueryPanel({
             sessionKey={`ghost-${databaseId}`}
             runSelection
             runButtonLabelWithSelection="Run selection"
-            onQueryRun={({ query: executedSQL }) => {
-              lastRunSQLRef.current = executedSQL;
-            }}
             onQueryComplete={(args) => {
               // Only surface the counter when the run actually succeeded;
               // for errors / cancels, hide it to avoid implying anything
               // about what got committed.
               if ('rowsAffected' in args) {
-                setStatementCount(countStatements(lastRunSQLRef.current));
+                setStatementCount(args.statementCount ?? 0);
               } else {
                 setStatementCount(0);
               }
diff --git a/web/src/lib/sql.ts b/web/src/lib/sql.ts
deleted file mode 100644
index c6c031d..0000000
--- a/web/src/lib/sql.ts
+++ /dev/null
@@ -1,97 +0,0 @@
-// countStatements walks `sql` once and counts top-level statements,
-// approximating what pgx's simple text protocol will execute when the widget
-// sends the editor contents joined by `; `. Comments, single-quoted strings
-// (with `''` escapes), double-quoted identifiers, and dollar-quoted blocks
-// are skipped so semicolons inside them don't inflate the count.
-//
-// This is an approximation, not a real parser — Unicode identifier rules,
-// nested block comments, and a few other corners aren't handled. Good enough
-// for displaying "Executed N statements" in the toolbar; the server-side
-// `executedStatements` field on the success line is the authoritative count.
-export function countStatements(sql: string): number {
-  let count = 0;
-  let nonWhitespaceInStmt = 0;
-  let i = 0;
-  const len = sql.length;
-
-  while (i < len) {
-    const c = sql[i];
-    const next = sql[i + 1];
-
-    // -- line comment
-    if (c === '-' && next === '-') {
-      i += 2;
-      while (i < len && sql[i] !== '\n') i++;
-      continue;
-    }
-    // /* block comment */ (not nested)
-    if (c === '/' && next === '*') {
-      i += 2;
-      while (i < len && !(sql[i] === '*' && sql[i + 1] === '/')) i++;
-      if (i < len) i += 2;
-      continue;
-    }
-    // single-quoted string '...' with '' escape
-    if (c === "'") {
-      nonWhitespaceInStmt++;
-      i++;
-      while (i < len) {
-        if (sql[i] === "'") {
-          if (sql[i + 1] === "'") {
-            i += 2;
-            continue;
-          }
-          i++;
-          break;
-        }
-        i++;
-      }
-      continue;
-    }
-    // double-quoted identifier "..." with "" escape
-    if (c === '"') {
-      nonWhitespaceInStmt++;
-      i++;
-      while (i < len) {
-        if (sql[i] === '"') {
-          if (sql[i + 1] === '"') {
-            i += 2;
-            continue;
-          }
-          i++;
-          break;
-        }
-        i++;
-      }
-      continue;
-    }
-    // dollar-quoted: $tag$ ... $tag$ (tag may be empty)
-    if (c === '$') {
-      const tagMatch = /^\$([A-Za-z_][A-Za-z0-9_]*)?\$/.exec(sql.slice(i));
-      if (tagMatch) {
-        const tag = tagMatch[0];
-        nonWhitespaceInStmt++;
-        i += tag.length;
-        const endIdx = sql.indexOf(tag, i);
-        if (endIdx === -1) {
-          i = len;
-        } else {
-          i = endIdx + tag.length;
-        }
-        continue;
-      }
-    }
-    // statement terminator
-    if (c === ';') {
-      if (nonWhitespaceInStmt > 0) count++;
-      nonWhitespaceInStmt = 0;
-      i++;
-      continue;
-    }
-    if (c !== undefined && /\S/.test(c)) nonWhitespaceInStmt++;
-    i++;
-  }
-
-  if (nonWhitespaceInStmt > 0) count++;
-  return count;
-}

From e36858766a4924bfd921860a342bdfce1313970f Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Mon, 1 Jun 2026 12:36:53 -0400
Subject: [PATCH 22/39] simplify

---
 web/src/components/QueryPanel.tsx | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/web/src/components/QueryPanel.tsx b/web/src/components/QueryPanel.tsx
index 940329a..ec09415 100644
--- a/web/src/components/QueryPanel.tsx
+++ b/web/src/components/QueryPanel.tsx
@@ -91,14 +91,7 @@ export function QueryPanel({
             runSelection
             runButtonLabelWithSelection="Run selection"
             onQueryComplete={(args) => {
-              // Only surface the counter when the run actually succeeded;
-              // for errors / cancels, hide it to avoid implying anything
-              // about what got committed.
-              if ('rowsAffected' in args) {
-                setStatementCount(args.statementCount ?? 0);
-              } else {
-                setStatementCount(0);
-              }
+              setStatementCount(args.statementCount ?? 0);
             }}
             renderToolbarAppendLeft={({ isRunning }) => {
               if (isRunning || statementCount <= 1) return null;

From 3ab50e7d8b217dd6c6248973f6e7ac78285b5a21 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Mon, 1 Jun 2026 15:05:36 -0400
Subject: [PATCH 23/39] improved fix for selection bug

---
 web/bun.lock                      |   4 +-
 web/package.json                  |   2 +-
 web/src/components/QueryPanel.tsx | 101 +++++++++++-------------------
 3 files changed, 41 insertions(+), 66 deletions(-)

diff --git a/web/bun.lock b/web/bun.lock
index 56cc5a4..00cf321 100644
--- a/web/bun.lock
+++ b/web/bun.lock
@@ -6,7 +6,7 @@
       "name": "@ghost-cli/web",
       "dependencies": {
         "@tanstack/react-query": "^5.62.7",
-        "@timescale/popsql-query-widget": "0.0.0-dev.157",
+        "@timescale/popsql-query-widget": "0.0.0-dev.158",
         "framer-motion": "^12.0.0",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
@@ -195,7 +195,7 @@
 
     "@tanstack/react-query": ["@tanstack/react-query@5.100.14", "", { "dependencies": { "@tanstack/query-core": "5.100.14" }, "peerDependencies": { "react": "^18 || ^19" } }, "sha512-oOr6aRdSFEwWhzxEkD/9ZcItM3+LjBSkeVmadWKwUssAHTsqd/7bOjWrX4AbvEkoEhgAxzN0Xk6H/aYzXiYBAw=="],
 
-    "@timescale/popsql-query-widget": ["@timescale/popsql-query-widget@0.0.0-dev.157", "https://npm.pkg.github.com/download/@timescale/popsql-query-widget/0.0.0-dev.157/2b5257d16e2eee2242bc4672a2983110db77c66a", { "peerDependencies": { "framer-motion": "12.x", "react": "17.x || 18.x", "react-dom": "17.x || 18.x" } }, "sha512-ZD83cFHQZEr/hV3j1S9vpNsHsTVFWbuUVxPws8yitx1tw9A2EdTy+A2s2FotHAcBvnGg40PLsKL0O34zu5KQ1A=="],
+    "@timescale/popsql-query-widget": ["@timescale/popsql-query-widget@0.0.0-dev.158", "https://npm.pkg.github.com/download/@timescale/popsql-query-widget/0.0.0-dev.158/60d4cfaf757bf689dc4f896e8d5c23751ef2d356", { "peerDependencies": { "framer-motion": "12.x", "react": "17.x || 18.x", "react-dom": "17.x || 18.x" } }, "sha512-pz3/lgiVmfwOQjeGTPwcbDX9yXljXYenm+0pM5Fq2mdqFWEgzNyEtHADyTbYufRw7tqlnVovSpNtiij4TII+ig=="],
 
     "@types/babel__core": ["@types/babel__core@7.20.5", "", { "dependencies": { "@babel/parser": "^7.20.7", "@babel/types": "^7.20.7", "@types/babel__generator": "*", "@types/babel__template": "*", "@types/babel__traverse": "*" } }, "sha512-qoQprZvz5wQFJwMDqeseRXWv3rqMvhgpbXFfVyWhbx9X47POIA6i/+dXefEmZKoAgOaTdaIgNSMqMIU61yRyzA=="],
 
diff --git a/web/package.json b/web/package.json
index 4f09eb8..312cf1a 100644
--- a/web/package.json
+++ b/web/package.json
@@ -11,7 +11,7 @@
   },
   "dependencies": {
     "@tanstack/react-query": "^5.62.7",
-    "@timescale/popsql-query-widget": "0.0.0-dev.157",
+    "@timescale/popsql-query-widget": "0.0.0-dev.158",
     "framer-motion": "^12.0.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
diff --git a/web/src/components/QueryPanel.tsx b/web/src/components/QueryPanel.tsx
index ec09415..3abf181 100644
--- a/web/src/components/QueryPanel.tsx
+++ b/web/src/components/QueryPanel.tsx
@@ -7,43 +7,7 @@ import {
   QueryWidgetProvider,
   TimescaleResultsCacheContextProvider,
 } from '@timescale/popsql-query-widget';
-import { useMemo, useState } from 'react';
-
-// Monaco's KeyMod/KeyCode constants are numeric and stable; hardcoding
-// avoids dragging another copy of monaco-editor into this bundle just to
-// reference the enum values.
-const KEYMOD_CTRLCMD = 1 << 11; // 2048
-const KEYMOD_WINCTRL = 1 << 8; // 256
-const KEYCODE_ENTER = 3;
-
-// preserveSelectionPlugin keeps the editor selection intact when the user
-// fires the run-query keybinding. The widget's own `execute-query` action
-// somehow loses the selection (cursor jumps to the document start), even
-// though the equivalent button click does not. We register our own action
-// for the same keybindings; Monaco prefers later-registered actions, so
-// ours wins. We snapshot the selection, dispatch the widget's action via
-// `trigger`, then restore the selection.
-const preserveSelectionPlugin = {
-  id: 'preserve-selection-on-run',
-  init: ({ editor }: { editor: any }) => {
-    const disposer = editor.addAction({
-      id: 'ghost-execute-query-preserve-selection',
-      label: 'Execute query (preserve selection)',
-      keybindings: [
-        KEYMOD_CTRLCMD | KEYCODE_ENTER,
-        KEYMOD_WINCTRL | KEYCODE_ENTER,
-      ],
-      run: (ed: any) => {
-        const selection = ed.getSelection();
-        ed.trigger('keyboard', 'execute-query', null);
-        if (selection && !selection.isEmpty()) {
-          ed.setSelection(selection);
-        }
-      },
-    });
-    return [disposer];
-  },
-};
+import { useCallback, useState } from 'react';
 
 interface Props {
   projectId: string;
@@ -69,9 +33,38 @@ export function QueryPanel({
   onResizeEditor,
 }: Props) {
   const [statementCount, setStatementCount] = useState(0);
-  // Plugin must be stable across renders so PopsqlEditor's initDeps don't
-  // think the plugin set changed and re-create the editor.
-  const editorPlugins = useMemo(() => [preserveSelectionPlugin] as any, []);
+
+  const handleQueryComplete = useCallback(
+    (args: { statementCount?: number }) => {
+      setStatementCount(args.statementCount ?? 0);
+    },
+    [],
+  );
+
+  const renderToolbarAppendLeft = useCallback(
+    ({ isRunning }: { isRunning: boolean }) => {
+      if (isRunning || statementCount <= 1) return null;
+      return (
+        <span className="ml-2 text-xs text-slate-500">
+          Executed {statementCount} statements
+        </span>
+      );
+    },
+    [statementCount],
+  );
+
+  const getExecuteQueryData = useCallback(
+    ({ runId, query: q }: { runId: string; query: string }) => ({
+      engine: ExecuteQueryEngine.timescaleQuery,
+      params: {
+        projectId,
+        serviceId: databaseId,
+        query: q,
+        runId,
+      },
+    }),
+    [projectId, databaseId],
+  );
 
   return (
     <TimescaleResultsCacheContextProvider baseUrl={window.location.origin}>
@@ -83,33 +76,15 @@ export function QueryPanel({
             editorMinHeight={200}
             editorHeight={editorHeight}
             onResizeEditor={onResizeEditor}
-            editorPlugins={editorPlugins}
-            id={`ghost-${databaseId}`}
+            id={databaseId}
             query={query}
             onQueryChange={onQueryChange}
-            sessionKey={`ghost-${databaseId}`}
+            sessionKey={databaseId}
             runSelection
             runButtonLabelWithSelection="Run selection"
-            onQueryComplete={(args) => {
-              setStatementCount(args.statementCount ?? 0);
-            }}
-            renderToolbarAppendLeft={({ isRunning }) => {
-              if (isRunning || statementCount <= 1) return null;
-              return (
-                <span className="ml-2 text-xs text-slate-500">
-                  Executed {statementCount} statements
-                </span>
-              );
-            }}
-            getExecuteQueryData={({ runId, query }) => ({
-              engine: ExecuteQueryEngine.timescaleQuery,
-              params: {
-                projectId,
-                serviceId: databaseId,
-                query,
-                runId,
-              },
-            })}
+            onQueryComplete={handleQueryComplete}
+            renderToolbarAppendLeft={renderToolbarAppendLeft}
+            getExecuteQueryData={getExecuteQueryData}
           />
           <ContextMenuContext.Consumer>
             {({ render }: { render: () => React.ReactNode }) => render()}

From b0c2d47f75257e25374ee4e977a9356c50a0b953 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Mon, 1 Jun 2026 15:17:37 -0400
Subject: [PATCH 24/39] add biome linter

---
 web/.gitignore                    |  3 +++
 web/biome.json                    | 41 +++++++++++++++++++++++++++++++
 web/bun.lock                      | 19 ++++++++++++++
 web/package.json                  |  5 +++-
 web/src/app.tsx                   | 17 ++++++++-----
 web/src/components/QueryPanel.tsx |  2 +-
 web/src/main.tsx                  |  2 +-
 web/vite.config.ts                | 25 +++++++++++++------
 8 files changed, 97 insertions(+), 17 deletions(-)
 create mode 100644 web/.gitignore
 create mode 100644 web/biome.json

diff --git a/web/.gitignore b/web/.gitignore
new file mode 100644
index 0000000..bf01524
--- /dev/null
+++ b/web/.gitignore
@@ -0,0 +1,3 @@
+node_modules/
+dist/
+tsconfig.tsbuildinfo
diff --git a/web/biome.json b/web/biome.json
new file mode 100644
index 0000000..aa8543d
--- /dev/null
+++ b/web/biome.json
@@ -0,0 +1,41 @@
+{
+  "$schema": "https://biomejs.dev/schemas/2.4.16/schema.json",
+  "vcs": {
+    "enabled": true,
+    "clientKind": "git",
+    "useIgnoreFile": true
+  },
+  "files": {
+    "ignoreUnknown": false
+  },
+  "formatter": {
+    "enabled": true,
+    "indentStyle": "space"
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": true,
+      "a11y": {
+        "useKeyWithMouseEvents": "off",
+        "noStaticElementInteractions": "off"
+      },
+      "suspicious": {
+        "noUnknownAtRules": "off"
+      }
+    }
+  },
+  "javascript": {
+    "formatter": {
+      "quoteStyle": "single"
+    }
+  },
+  "assist": {
+    "enabled": true,
+    "actions": {
+      "source": {
+        "organizeImports": "on"
+      }
+    }
+  }
+}
diff --git a/web/bun.lock b/web/bun.lock
index 00cf321..a4ba964 100644
--- a/web/bun.lock
+++ b/web/bun.lock
@@ -13,6 +13,7 @@
         "zustand": "^5.0.14",
       },
       "devDependencies": {
+        "@biomejs/biome": "^2.4.9",
         "@types/node": "^22.10.0",
         "@types/react": "^18.3.0",
         "@types/react-dom": "^18.3.0",
@@ -67,6 +68,24 @@
 
     "@babel/types": ["@babel/types@7.29.7", "", { "dependencies": { "@babel/helper-string-parser": "^7.29.7", "@babel/helper-validator-identifier": "^7.29.7" } }, "sha512-4zBIxpPzowiZpusoFkyGVwakdRJUyuH5PxQ/PrqghfdFWWasvnCdPfQXHrenDai+gyLARulZjZowCOj6fjT4pA=="],
 
+    "@biomejs/biome": ["@biomejs/biome@2.4.16", "", { "optionalDependencies": { "@biomejs/cli-darwin-arm64": "2.4.16", "@biomejs/cli-darwin-x64": "2.4.16", "@biomejs/cli-linux-arm64": "2.4.16", "@biomejs/cli-linux-arm64-musl": "2.4.16", "@biomejs/cli-linux-x64": "2.4.16", "@biomejs/cli-linux-x64-musl": "2.4.16", "@biomejs/cli-win32-arm64": "2.4.16", "@biomejs/cli-win32-x64": "2.4.16" }, "bin": { "biome": "bin/biome" } }, "sha512-x9ajFh1zChVybCiM3TN6OD4phAqLgtPZjFrZF+aTMYCPjwBO+k529TX7PPsAqtGNLeV4UgzwQnowEgS7bGmzcA=="],
+
+    "@biomejs/cli-darwin-arm64": ["@biomejs/cli-darwin-arm64@2.4.16", "", { "os": "darwin", "cpu": "arm64" }, "sha512-wxPvu4XOA85YJk9ixSWUmq/QBHbid85BISbOAqqBM/5xQpPk9ayjk5375tOlSC0BeCwNSbPFafQBm+vBumXq0A=="],
+
+    "@biomejs/cli-darwin-x64": ["@biomejs/cli-darwin-x64@2.4.16", "", { "os": "darwin", "cpu": "x64" }, "sha512-xFCqGPwYusQJp4N4NJLi1XJiZqjwFdjhT+KqtNy+Ug3qgfczqnTa6MSDvxJF6TkuDLoYJItMapz6tAf7kCekFw=="],
+
+    "@biomejs/cli-linux-arm64": ["@biomejs/cli-linux-arm64@2.4.16", "", { "os": "linux", "cpu": "arm64" }, "sha512-2kFb4//jxfZaP6D+Rj5VkHkxgyD9EoRAVBEQb8PKRv+s4NO2zYNJKXFaJmK1CmhufJOWEfpHKaRbOja7qjmdhQ=="],
+
+    "@biomejs/cli-linux-arm64-musl": ["@biomejs/cli-linux-arm64-musl@2.4.16", "", { "os": "linux", "cpu": "arm64" }, "sha512-oYxnW0ARfJkr72ezzF2OR8N/rtkgLUQeYtF8cFhVswbknHxtTcmzSsanVJP8yQKnGpGpc2ck6c5zLvHahL6Cbg=="],
+
+    "@biomejs/cli-linux-x64": ["@biomejs/cli-linux-x64@2.4.16", "", { "os": "linux", "cpu": "x64" }, "sha512-NbcBbi/nJqn5baae6wqRXdS7Gadf2uRpehSh6vMSYpG8OhkXl/Xg8aorWrJ+9VWqAT5ml90alLvorkpMW0nBwQ=="],
+
+    "@biomejs/cli-linux-x64-musl": ["@biomejs/cli-linux-x64-musl@2.4.16", "", { "os": "linux", "cpu": "x64" }, "sha512-iHDS+MCM65DPqWGu+ECC3uoALyj2H7F4nVUPxIPjz/PIl94EUu+EDfGZDzFP+NY1EOPVt9NQvwFqq7HdMmowdg=="],
+
+    "@biomejs/cli-win32-arm64": ["@biomejs/cli-win32-arm64@2.4.16", "", { "os": "win32", "cpu": "arm64" }, "sha512-0rgImMsNb5v/chhkIFe3wu7PEFClS6RBAYUijGL9UsYN3PanSaoK24HSSuSJb1pYbYYVjzAyZTl3gtjJ84BM8A=="],
+
+    "@biomejs/cli-win32-x64": ["@biomejs/cli-win32-x64@2.4.16", "", { "os": "win32", "cpu": "x64" }, "sha512-Kp85jgoBHa05gix6UIRjfCDiUV3w/8VIdZ247VyyO2gEjaw12WEVhdIjlxp/AMzXxqxQwbxNTDVZ3Mwd2RG5rw=="],
+
     "@esbuild/aix-ppc64": ["@esbuild/aix-ppc64@0.27.7", "", { "os": "aix", "cpu": "ppc64" }, "sha512-EKX3Qwmhz1eMdEJokhALr0YiD0lhQNwDqkPYyPhiSwKrh7/4KRjQc04sZ8db+5DVVnZ1LmbNDI1uAMPEUBnQPg=="],
 
     "@esbuild/android-arm": ["@esbuild/android-arm@0.27.7", "", { "os": "android", "cpu": "arm" }, "sha512-jbPXvB4Yj2yBV7HUfE2KHe4GJX51QplCN1pGbYjvsyCZbQmies29EoJbkEc+vYuU5o45AfQn37vZlyXy4YJ8RQ=="],
diff --git a/web/package.json b/web/package.json
index 312cf1a..ff07b77 100644
--- a/web/package.json
+++ b/web/package.json
@@ -7,7 +7,9 @@
     "dev": "vite",
     "build": "tsc -b && vite build",
     "preview": "vite preview",
-    "typecheck": "tsc --noEmit"
+    "typecheck": "tsc --noEmit",
+    "lint": "biome check",
+    "check": "./bun i --silent && ./bun run typecheck && ./bun run lint --write"
   },
   "dependencies": {
     "@tanstack/react-query": "^5.62.7",
@@ -18,6 +20,7 @@
     "zustand": "^5.0.14"
   },
   "devDependencies": {
+    "@biomejs/biome": "^2.4.9",
     "@types/node": "^22.10.0",
     "@types/react": "^18.3.0",
     "@types/react-dom": "^18.3.0",
diff --git a/web/src/app.tsx b/web/src/app.tsx
index 245f200..7dea5d8 100644
--- a/web/src/app.tsx
+++ b/web/src/app.tsx
@@ -2,7 +2,7 @@ import { useQuery } from '@tanstack/react-query';
 import '@timescale/popsql-query-widget/index.css';
 
 import { QueryPanel } from './components/QueryPanel';
-import { useServeStore, type PersistedState } from './store';
+import { type PersistedState, useServeStore } from './store';
 
 interface Bootstrap {
   projectId: string;
@@ -25,9 +25,9 @@ async function fetchJSON<T>(path: string): Promise<T> {
 const READY_STATUSES = new Set(['ready', 'running']);
 
 function pickDefaultDatabaseId(databases: Database[]): string | null {
-  if (databases.length === 1) return databases[0]!.id;
+  if (databases.length === 1) return databases[0]?.id ?? null;
   const ready = databases.filter((db) => READY_STATUSES.has(db.status));
-  if (ready.length === 1) return ready[0]!.id;
+  if (ready.length === 1) return ready[0]?.id ?? null;
   return null;
 }
 
@@ -79,7 +79,8 @@ function ReadyApp({ bootstrap }: ReadyAppProps) {
       const data = await fetchJSON<Database[]>('/api/databases');
       if (!useServeStore.getState().selectedDatabaseId) {
         const defaultId = pickDefaultDatabaseId(data);
-        if (defaultId) useServeStore.getState().setSelectedDatabaseId(defaultId);
+        if (defaultId)
+          useServeStore.getState().setSelectedDatabaseId(defaultId);
       }
       return data;
     },
@@ -91,7 +92,9 @@ function ReadyApp({ bootstrap }: ReadyAppProps) {
   return (
     <div className="flex h-full flex-col">
       <header className="flex items-center justify-between border-b border-slate-200 bg-white px-4 py-2">
-        <div className="font-mono text-lg font-semibold tracking-tight">ghost</div>
+        <div className="font-mono text-lg font-semibold tracking-tight">
+          ghost
+        </div>
         <div className="flex items-center gap-2 text-sm">
           {databases.isError ? (
             <span className="text-red-600">Failed to load databases</span>
@@ -122,7 +125,9 @@ function ReadyApp({ bootstrap }: ReadyAppProps) {
       </header>
       <main className="flex flex-auto flex-col overflow-hidden p-4">
         {!selected ? (
-          <div className="text-slate-500">Select a database to run queries.</div>
+          <div className="text-slate-500">
+            Select a database to run queries.
+          </div>
         ) : (
           <QueryPanel
             projectId={bootstrap.projectId}
diff --git a/web/src/components/QueryPanel.tsx b/web/src/components/QueryPanel.tsx
index 3abf181..0f5079b 100644
--- a/web/src/components/QueryPanel.tsx
+++ b/web/src/components/QueryPanel.tsx
@@ -1,4 +1,3 @@
-import type React from 'react';
 import {
   ContextMenuContext,
   ContextMenuProvider,
@@ -7,6 +6,7 @@ import {
   QueryWidgetProvider,
   TimescaleResultsCacheContextProvider,
 } from '@timescale/popsql-query-widget';
+import type React from 'react';
 import { useCallback, useState } from 'react';
 
 interface Props {
diff --git a/web/src/main.tsx b/web/src/main.tsx
index 1d5d169..45d348c 100644
--- a/web/src/main.tsx
+++ b/web/src/main.tsx
@@ -1,6 +1,6 @@
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import { StrictMode } from 'react';
 import { createRoot } from 'react-dom/client';
-import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 
 import { App } from './app';
 import './styles.css';
diff --git a/web/vite.config.ts b/web/vite.config.ts
index ba0f1ee..28ba328 100644
--- a/web/vite.config.ts
+++ b/web/vite.config.ts
@@ -1,9 +1,9 @@
-import { defineConfig, type Plugin } from 'vite';
-import react from '@vitejs/plugin-react';
-import { nodePolyfills } from 'vite-plugin-node-polyfills';
 import { readdirSync, readFileSync } from 'node:fs';
-import { dirname, join } from 'node:path';
 import { createRequire } from 'node:module';
+import { dirname, join } from 'node:path';
+import react from '@vitejs/plugin-react';
+import { defineConfig, type Plugin } from 'vite';
+import { nodePolyfills } from 'vite-plugin-node-polyfills';
 
 const ghostServePort = process.env.GHOST_SERVE_DEV_PORT ?? '5174';
 
@@ -18,9 +18,12 @@ function copyPopsqlQueryWidgetAssets(): Plugin {
     apply: 'build',
     async generateBundle() {
       const require = createRequire(import.meta.url);
-      const widgetPkgJson = require.resolve('@timescale/popsql-query-widget/package.json');
+      const widgetPkgJson = require.resolve(
+        '@timescale/popsql-query-widget/package.json',
+      );
       const widgetDir = dirname(widgetPkgJson);
-      const pattern = /^(duckdb-browser-(?:eh|mvp)\.worker\.js|editor\.worker\.js|.+\.wasm)$/;
+      const pattern =
+        /^(duckdb-browser-(?:eh|mvp)\.worker\.js|editor\.worker\.js|.+\.wasm)$/;
       for (const entry of readdirSync(widgetDir, { withFileTypes: true })) {
         if (!entry.isFile() || !pattern.test(entry.name)) continue;
         this.emitFile({
@@ -50,8 +53,14 @@ export default defineConfig({
     port: 5173,
     strictPort: false,
     proxy: {
-      '/api': { target: `http://127.0.0.1:${ghostServePort}`, changeOrigin: true },
-      '/healthz': { target: `http://127.0.0.1:${ghostServePort}`, changeOrigin: true },
+      '/api': {
+        target: `http://127.0.0.1:${ghostServePort}`,
+        changeOrigin: true,
+      },
+      '/healthz': {
+        target: `http://127.0.0.1:${ghostServePort}`,
+        changeOrigin: true,
+      },
     },
   },
   build: {

From c47d52ad76d55339ed8db35f531cc72f8d674869 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Mon, 1 Jun 2026 15:22:02 -0400
Subject: [PATCH 25/39] improve description

---
 docs/cli/ghost_serve.md | 6 +++---
 internal/cmd/serve.go   | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/docs/cli/ghost_serve.md b/docs/cli/ghost_serve.md
index 6eacecc..1c061b5 100644
--- a/docs/cli/ghost_serve.md
+++ b/docs/cli/ghost_serve.md
@@ -10,9 +10,9 @@ Launch a local web UI for running SQL queries
 
 ### Synopsis
 
-Start a local web server on 127.0.0.1 and open a browser to a UI that lets
-you run SQL queries against your ghost databases. The server runs only for
-the duration of this command — press Ctrl+C to stop it.
+Start a local web server and open a browser to a UI that lets you run SQL
+queries against your ghost databases. The server runs only for the duration
+of this command — press Ctrl+C to stop it.
 
 ```
 ghost serve [flags]
diff --git a/internal/cmd/serve.go b/internal/cmd/serve.go
index f2d36ce..2c2c9fb 100644
--- a/internal/cmd/serve.go
+++ b/internal/cmd/serve.go
@@ -15,9 +15,9 @@ func buildServeCmd(app *common.App) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "serve",
 		Short: "Launch a local web UI for running SQL queries",
-		Long: `Start a local web server on 127.0.0.1 and open a browser to a UI that lets
-you run SQL queries against your ghost databases. The server runs only for
-the duration of this command — press Ctrl+C to stop it.`,
+		Long: `Start a local web server and open a browser to a UI that lets you run SQL
+queries against your ghost databases. The server runs only for the duration
+of this command — press Ctrl+C to stop it.`,
 		Example: `  # Launch on an auto-picked port and open the browser
   ghost serve
 

From 0ff36bf911fdf12e7dcd3d1808f5f7e48a52c6c2 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Tue, 2 Jun 2026 16:39:05 -0400
Subject: [PATCH 26/39] add missing permission for package read

---
 .github/workflows/test.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index f5566cc..cc33ce7 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -11,6 +11,9 @@ jobs:
   test:
     name: Test
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: read
     steps:
       - name: Checkout
         uses: actions/checkout@v6

From e7f96a283ca0ef0a400106cc421feb80495e1ef7 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Tue, 2 Jun 2026 17:14:30 -0400
Subject: [PATCH 27/39] filter out unneeded wasm file

---
 web/vite.config.ts | 66 +++++++++++++++++++++++++++++++++++++---------
 1 file changed, 54 insertions(+), 12 deletions(-)

diff --git a/web/vite.config.ts b/web/vite.config.ts
index 28ba328..8045d5d 100644
--- a/web/vite.config.ts
+++ b/web/vite.config.ts
@@ -7,25 +7,67 @@ import { nodePolyfills } from 'vite-plugin-node-polyfills';
 
 const ghostServePort = process.env.GHOST_SERVE_DEV_PORT ?? '5174';
 
-// The widget's results.worker.js and editor.worker.js load their DuckDB +
-// Monaco sidecars via `new URL(<variable>, import.meta.url)`. Vite only emits
-// referenced assets when the URL argument is a string literal, so the
-// sidecars get missed and the workers 404 at runtime. We emit them manually
-// — ported from web-cloud/vite.config.ts.
-function copyPopsqlQueryWidgetAssets(): Plugin {
+// The widget's results.worker.js references its DuckDB .wasm sidecars via
+// `new URL(<variable>, import.meta.url)`, so Vite's static analysis can't
+// follow them and they don't get emitted automatically. We copy them here.
+// (Worker .js sidecars are referenced as string literals, so Vite handles
+// those itself — no manual copy needed.)
+//
+// We also drop the `mvp` DuckDB bundle entirely. The widget's selectBundle()
+// prefers the `eh` (WebAssembly exception-handling) bundle on every browser
+// shipped since late 2021 (Chrome/Edge 95+, Firefox 100+, Safari 15.2+);
+// `mvp` is only a fallback for older browsers, which `ghost serve` doesn't
+// support. Dropping it saves ~41 MiB on every embedded ghost binary.
+function popsqlQueryWidgetAssets(): Plugin {
   return {
-    name: 'copy-popsql-query-widget-assets',
+    name: 'popsql-query-widget-assets',
     apply: 'build',
-    async generateBundle() {
+    enforce: 'post',
+    async generateBundle(_options, bundle) {
       const require = createRequire(import.meta.url);
       const widgetPkgJson = require.resolve(
         '@timescale/popsql-query-widget/package.json',
       );
       const widgetDir = dirname(widgetPkgJson);
-      const pattern =
-        /^(duckdb-browser-(?:eh|mvp)\.worker\.js|editor\.worker\.js|.+\.wasm)$/;
+
+      // results.worker.js holds the canonical wasm filename mapping. Parse
+      // it so we don't have to hard-code a hash that changes whenever the
+      // widget bumps its DuckDB dependency.
+      const widgetWorker = readFileSync(
+        join(widgetDir, 'results.worker.js'),
+        'utf8',
+      );
+      const mvpMatch = widgetWorker.match(
+        /duckdb_mvp_default\s*=\s*"\.\/([^"]+\.wasm)"/,
+      );
+      if (!mvpMatch) {
+        throw new Error(
+          "Could not find duckdb_mvp_default in @timescale/popsql-query-widget's results.worker.js — has its bundle layout changed?",
+        );
+      }
+      const mvpWasm = mvpMatch[1];
+
+      // Prune the mvp worker chunk Vite emitted from its static analysis of
+      // results.worker.js. The widget still constructs the URL at runtime,
+      // but only takes that branch on browsers without WASM exception
+      // handling — which we don't support.
+      for (const fileName of Object.keys(bundle)) {
+        if (
+          /(^|\/)duckdb-browser-mvp\.worker[-A-Za-z0-9_.]*\.js$/.test(fileName)
+        ) {
+          delete bundle[fileName];
+        }
+      }
+
+      // Emit the non-mvp .wasm files that Vite missed.
       for (const entry of readdirSync(widgetDir, { withFileTypes: true })) {
-        if (!entry.isFile() || !pattern.test(entry.name)) continue;
+        if (
+          !entry.isFile() ||
+          !entry.name.endsWith('.wasm') ||
+          entry.name === mvpWasm
+        ) {
+          continue;
+        }
         this.emitFile({
           type: 'asset',
           fileName: `assets/${entry.name}`,
@@ -42,7 +84,7 @@ export default defineConfig({
     // The widget bundle assumes Node globals (Buffer, process, etc.) exist;
     // match the shim list web-cloud uses with this widget.
     nodePolyfills({ include: ['buffer', 'crypto', 'process', 'stream'] }),
-    copyPopsqlQueryWidgetAssets(),
+    popsqlQueryWidgetAssets(),
   ],
   optimizeDeps: {
     // The widget bundle expects its workers to live next to its main chunk;

From 311680cb15114083e510fa02d549986387c5cf04 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Wed, 3 Jun 2026 14:19:53 -0400
Subject: [PATCH 28/39] switch popsql-query-widget to CDN-loaded DuckDB-WASM

Replace @timescale/popsql-query-widget@0.0.0-dev.158 with the new CDN
variant @timescale/popsql-query-widget-cdn@0.0.0-dev.161. The CDN variant
loads DuckDB-WASM (~73 MiB of duckdb-{eh,mvp}.wasm + their browser
workers) from cdn.jsdelivr.net at runtime instead of bundling them.

Net effect on the embedded ghost binary: internal/serve/web/ shrinks
from ~83 MiB to ~6 MiB, so each platform binary gains only ~9 MiB over
v0.18.0 instead of the ~85 MiB the original PR added.

Drop the popsqlQueryWidgetAssets() Vite plugin (the manual wasm copy +
mvp pruning it used to perform is no longer needed: the new widget
ships no wasm sidecars at all).
---
 web/bun.lock                      |  4 +-
 web/package.json                  |  2 +-
 web/src/app.tsx                   |  2 +-
 web/src/components/QueryPanel.tsx |  2 +-
 web/vite.config.ts                | 79 +------------------------------
 5 files changed, 7 insertions(+), 82 deletions(-)

diff --git a/web/bun.lock b/web/bun.lock
index a4ba964..f8afc1e 100644
--- a/web/bun.lock
+++ b/web/bun.lock
@@ -6,7 +6,7 @@
       "name": "@ghost-cli/web",
       "dependencies": {
         "@tanstack/react-query": "^5.62.7",
-        "@timescale/popsql-query-widget": "0.0.0-dev.158",
+        "@timescale/popsql-query-widget-cdn": "0.0.0-dev.161",
         "framer-motion": "^12.0.0",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
@@ -214,7 +214,7 @@
 
     "@tanstack/react-query": ["@tanstack/react-query@5.100.14", "", { "dependencies": { "@tanstack/query-core": "5.100.14" }, "peerDependencies": { "react": "^18 || ^19" } }, "sha512-oOr6aRdSFEwWhzxEkD/9ZcItM3+LjBSkeVmadWKwUssAHTsqd/7bOjWrX4AbvEkoEhgAxzN0Xk6H/aYzXiYBAw=="],
 
-    "@timescale/popsql-query-widget": ["@timescale/popsql-query-widget@0.0.0-dev.158", "https://npm.pkg.github.com/download/@timescale/popsql-query-widget/0.0.0-dev.158/60d4cfaf757bf689dc4f896e8d5c23751ef2d356", { "peerDependencies": { "framer-motion": "12.x", "react": "17.x || 18.x", "react-dom": "17.x || 18.x" } }, "sha512-pz3/lgiVmfwOQjeGTPwcbDX9yXljXYenm+0pM5Fq2mdqFWEgzNyEtHADyTbYufRw7tqlnVovSpNtiij4TII+ig=="],
+    "@timescale/popsql-query-widget-cdn": ["@timescale/popsql-query-widget-cdn@0.0.0-dev.161", "https://npm.pkg.github.com/download/@timescale/popsql-query-widget-cdn/0.0.0-dev.161/6c6c601988cbe8240d2657ef8655c687d3e80c5e", { "peerDependencies": { "framer-motion": "12.x", "react": "17.x || 18.x", "react-dom": "17.x || 18.x" } }, "sha512-HoXOeTQf+ibNDYJkUruy0G2PnaUpc8GTBDXwBIQ4fjGMwwSHXTqj3nTosYbaARsWmQrBMFFlfoWPVH3dLi1Zig=="],
 
     "@types/babel__core": ["@types/babel__core@7.20.5", "", { "dependencies": { "@babel/parser": "^7.20.7", "@babel/types": "^7.20.7", "@types/babel__generator": "*", "@types/babel__template": "*", "@types/babel__traverse": "*" } }, "sha512-qoQprZvz5wQFJwMDqeseRXWv3rqMvhgpbXFfVyWhbx9X47POIA6i/+dXefEmZKoAgOaTdaIgNSMqMIU61yRyzA=="],
 
diff --git a/web/package.json b/web/package.json
index ff07b77..6161cef 100644
--- a/web/package.json
+++ b/web/package.json
@@ -13,7 +13,7 @@
   },
   "dependencies": {
     "@tanstack/react-query": "^5.62.7",
-    "@timescale/popsql-query-widget": "0.0.0-dev.158",
+    "@timescale/popsql-query-widget-cdn": "0.0.0-dev.161",
     "framer-motion": "^12.0.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
diff --git a/web/src/app.tsx b/web/src/app.tsx
index 7dea5d8..55bfe07 100644
--- a/web/src/app.tsx
+++ b/web/src/app.tsx
@@ -1,5 +1,5 @@
 import { useQuery } from '@tanstack/react-query';
-import '@timescale/popsql-query-widget/index.css';
+import '@timescale/popsql-query-widget-cdn/index.css';
 
 import { QueryPanel } from './components/QueryPanel';
 import { type PersistedState, useServeStore } from './store';
diff --git a/web/src/components/QueryPanel.tsx b/web/src/components/QueryPanel.tsx
index 0f5079b..ae121b0 100644
--- a/web/src/components/QueryPanel.tsx
+++ b/web/src/components/QueryPanel.tsx
@@ -5,7 +5,7 @@ import {
   QueryWidget,
   QueryWidgetProvider,
   TimescaleResultsCacheContextProvider,
-} from '@timescale/popsql-query-widget';
+} from '@timescale/popsql-query-widget-cdn';
 import type React from 'react';
 import { useCallback, useState } from 'react';
 
diff --git a/web/vite.config.ts b/web/vite.config.ts
index 8045d5d..1ba3d28 100644
--- a/web/vite.config.ts
+++ b/web/vite.config.ts
@@ -1,95 +1,20 @@
-import { readdirSync, readFileSync } from 'node:fs';
-import { createRequire } from 'node:module';
-import { dirname, join } from 'node:path';
 import react from '@vitejs/plugin-react';
-import { defineConfig, type Plugin } from 'vite';
+import { defineConfig } from 'vite';
 import { nodePolyfills } from 'vite-plugin-node-polyfills';
 
 const ghostServePort = process.env.GHOST_SERVE_DEV_PORT ?? '5174';
 
-// The widget's results.worker.js references its DuckDB .wasm sidecars via
-// `new URL(<variable>, import.meta.url)`, so Vite's static analysis can't
-// follow them and they don't get emitted automatically. We copy them here.
-// (Worker .js sidecars are referenced as string literals, so Vite handles
-// those itself — no manual copy needed.)
-//
-// We also drop the `mvp` DuckDB bundle entirely. The widget's selectBundle()
-// prefers the `eh` (WebAssembly exception-handling) bundle on every browser
-// shipped since late 2021 (Chrome/Edge 95+, Firefox 100+, Safari 15.2+);
-// `mvp` is only a fallback for older browsers, which `ghost serve` doesn't
-// support. Dropping it saves ~41 MiB on every embedded ghost binary.
-function popsqlQueryWidgetAssets(): Plugin {
-  return {
-    name: 'popsql-query-widget-assets',
-    apply: 'build',
-    enforce: 'post',
-    async generateBundle(_options, bundle) {
-      const require = createRequire(import.meta.url);
-      const widgetPkgJson = require.resolve(
-        '@timescale/popsql-query-widget/package.json',
-      );
-      const widgetDir = dirname(widgetPkgJson);
-
-      // results.worker.js holds the canonical wasm filename mapping. Parse
-      // it so we don't have to hard-code a hash that changes whenever the
-      // widget bumps its DuckDB dependency.
-      const widgetWorker = readFileSync(
-        join(widgetDir, 'results.worker.js'),
-        'utf8',
-      );
-      const mvpMatch = widgetWorker.match(
-        /duckdb_mvp_default\s*=\s*"\.\/([^"]+\.wasm)"/,
-      );
-      if (!mvpMatch) {
-        throw new Error(
-          "Could not find duckdb_mvp_default in @timescale/popsql-query-widget's results.worker.js — has its bundle layout changed?",
-        );
-      }
-      const mvpWasm = mvpMatch[1];
-
-      // Prune the mvp worker chunk Vite emitted from its static analysis of
-      // results.worker.js. The widget still constructs the URL at runtime,
-      // but only takes that branch on browsers without WASM exception
-      // handling — which we don't support.
-      for (const fileName of Object.keys(bundle)) {
-        if (
-          /(^|\/)duckdb-browser-mvp\.worker[-A-Za-z0-9_.]*\.js$/.test(fileName)
-        ) {
-          delete bundle[fileName];
-        }
-      }
-
-      // Emit the non-mvp .wasm files that Vite missed.
-      for (const entry of readdirSync(widgetDir, { withFileTypes: true })) {
-        if (
-          !entry.isFile() ||
-          !entry.name.endsWith('.wasm') ||
-          entry.name === mvpWasm
-        ) {
-          continue;
-        }
-        this.emitFile({
-          type: 'asset',
-          fileName: `assets/${entry.name}`,
-          source: readFileSync(join(widgetDir, entry.name)),
-        });
-      }
-    },
-  };
-}
-
 export default defineConfig({
   plugins: [
     react(),
     // The widget bundle assumes Node globals (Buffer, process, etc.) exist;
     // match the shim list web-cloud uses with this widget.
     nodePolyfills({ include: ['buffer', 'crypto', 'process', 'stream'] }),
-    popsqlQueryWidgetAssets(),
   ],
   optimizeDeps: {
     // The widget bundle expects its workers to live next to its main chunk;
     // letting Vite pre-bundle it breaks that assumption.
-    exclude: ['@timescale/popsql-query-widget'],
+    exclude: ['@timescale/popsql-query-widget-cdn'],
   },
   server: {
     port: 5173,

From d7697818deaa3b20c179efff8c1f291a473980e4 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Wed, 3 Jun 2026 14:40:16 -0400
Subject: [PATCH 29/39] don't commit plan

---
 plan.md | 534 --------------------------------------------------------
 1 file changed, 534 deletions(-)
 delete mode 100644 plan.md

diff --git a/plan.md b/plan.md
deleted file mode 100644
index 661b842..0000000
--- a/plan.md
+++ /dev/null
@@ -1,534 +0,0 @@
-# `ghost serve` — local web UI for running SQL against ghost databases
-
-## Goal
-
-Add a `ghost serve` command that launches a local web server on `127.0.0.1:<port>` and opens the browser to a small React UI. The UI shows a database picker plus the unmodified PopSQL query widget, so the user can run ad-hoc SQL against any of their ghost databases. No new auth layer: the local server reuses the CLI's existing `gt_…` API key for ghost-api metadata calls, and the query path connects directly to the user's PostgreSQL databases using credentials the CLI already resolves (via `common.GetPassword`).
-
-```
-ghost serve [--port <n>] [--host 127.0.0.1] [--no-open]
-```
-
-This is patterned after `memory-engine`'s `me serve` (PR #47), but query execution runs **in-process** inside the Go binary — there is no proxy to ghost-api or the savannah gateway. The CLI binary becomes a self-contained "query gateway" that speaks the widget's wire protocol.
-
----
-
-## Architecture
-
-```
-                  ┌──────────────────────────────────────────┐
-   browser  ──▶   │  ghost serve  (single Go binary)         │
-   (Vite-built    │  • 127.0.0.1:<port>                      │
-    SPA, served   │  • embed.FS static                       │
-    from same     │  • /api/databases   → ghost-api (REST)   │  ──▶ ghost-api
-    origin)       │  • /api/bootstrap   → local config       │      (only used
-                  │  • /api/executeQuery, /api/arrowResults, │      for listing
-                  │    /api/cancelRun   → run pg queries     │      databases &
-                  │                       in-process         │      fetching
-                  │  • Apache Arrow IPC encoder              │      passwords)
-                  │  • pgx/v5 connections                    │
-                  │      │                                   │
-                  └──────┼───────────────────────────────────┘
-                         │
-                         ▼
-                  user's ghost Postgres DBs (TLS, direct)
-```
-
-No ghost-api changes are required. No new endpoints in any other repo. The widget thinks it's talking to a savannah gateway; in reality the gateway is a few hundred lines of Go in this binary.
-
----
-
-## The widget's wire protocol (what we have to implement)
-
-This is what `@popsql/query-client`'s `TimescaleQueryClient` actually sends. Source: `popsql/packages/popsql-query-client/src/{TimescaleQueryClient.ts,client.ts}`.
-
-Auth: `credentials: 'include'` (cookies — but we have none on localhost) plus optional `Authorization: Bearer <accessToken>`. We don't need either — the listener is loopback-only.
-
-### One-shot mode (no `sessionKey` prop on `<QueryWidget>`) — **MVP scope**
-
-Two endpoints participate in a single query run. The widget fires these in sequence as it streams the response.
-
-**`POST /api/executeQuery`**
-Request body:
-```json
-{
-  "projectId": "<space id>",
-  "serviceId": "<database id>",
-  "query": "select 1",
-  "runId": "<uuid v4 from widget>",
-  "stream": true,
-  "persist": false,
-  "statements": null,
-  "timeout": null
-}
-```
-Response: `Content-Type: application/x-ndjson` (or `application/json` — the widget just reads lines), one JSON object per line, in order:
-1. `{ "columns": [{ "name": "…", "type": "…", … }], "meta": { … } }` — emitted as soon as the column metadata is known.
-2. As soon as the widget reads the `columns` line, it fires `POST /api/arrowResults` in parallel (see below). The original `executeQuery` response stays open.
-3. Terminator: exactly one of
-   - `{ "success": true, "rowCount": 42, "duration": 123, … }`
-   - `{ "success": false, "error": { "message": "…", "cancel"?: true, "timeout"?: true, "fatal"?: true } }`
-
-`fatal: true` causes the widget to mark the session as broken (only meaningful in session mode); we'll never set it. `cancel: true` is set when the run was cancelled via `/api/cancelRun`. `timeout: true` for query timeouts.
-
-**`POST /api/arrowResults`**
-Request body:
-```json
-{
-  "projectId": "<space id>",
-  "serviceId": "<database id>",
-  "runId": "<same runId from executeQuery>"
-}
-```
-Response: `Content-Type: application/vnd.apache.arrow.stream`, body is a raw Apache Arrow **IPC stream** (schema message + zero or more record-batch messages). The widget parses with `RecordBatchReader.from(response)` and renders incrementally.
-
-**`POST /api/cancelRun`** (used for "stop the running query")
-```json
-{ "projectId": "…", "serviceId": "…", "runId": "…" }
-```
-Soft-cancel: the widget mostly relies on `AbortController` to drop the executeQuery connection. This endpoint is wired but rarely called (see `TimescaleQueryClient.cancelQuery` comment). We'll implement it as best-effort `pg_cancel_backend()` against the run's connection.
-
-### Session mode — **deferred to follow-up**
-
-The widget also supports a "session" mode (`sessionKey` prop set on `<QueryWidget>`) where a long-lived PG connection is reused across multiple `executeSessionQuery` calls. This adds four more endpoints (`createSession`, `sessionEvents` [NDJSON status stream], `executeSessionQuery`, `closeSession`) and a session lifecycle manager.
-
-For MVP we will **not pass `sessionKey`** to `<QueryWidget>`. Each query opens its own connection and closes it. Sessions can be a phase-2 add — the architecture leaves room for them.
-
----
-
-## Apache Arrow encoding (PG row → Arrow IPC)
-
-The only non-trivial new piece. Plan:
-
-- Add `github.com/apache/arrow-go/v18` (or whatever the current canonical Go Arrow module is). It's well-maintained and supports the IPC stream writer (`ipc.NewWriter` over an `io.Writer`).
-- Use **`github.com/jackc/pgx/v5`** for the Postgres connection (already idiomatic; the CLI may already have it transitively). `pgx` exposes column OIDs which we map to Arrow types cleanly. `database/sql` only gives Go reflect types, which is lossier.
-
-Type mapping (MVP — narrow enough to cover the common Postgres/Timescale surface):
-
-| Postgres OID                       | Arrow type                          |
-|------------------------------------|-------------------------------------|
-| `bool`                             | `Boolean`                           |
-| `int2`                             | `Int16`                             |
-| `int4`                             | `Int32`                             |
-| `int8`                             | `Int64`                             |
-| `float4`                           | `Float32`                           |
-| `float8`                           | `Float64`                           |
-| `numeric`                          | `Utf8` (lose precision-aware decimal for now) |
-| `text`, `varchar`, `name`, `bpchar`| `Utf8`                              |
-| `bytea`                            | `Binary`                            |
-| `date`                             | `Date32`                            |
-| `timestamp`                        | `Timestamp[us]` (no tz)             |
-| `timestamptz`                      | `Timestamp[us, UTC]`                |
-| `uuid`                             | `Utf8` (16-byte FixedSizeBinary later) |
-| `json`, `jsonb`                    | `Utf8`                              |
-| arrays of the above                | `List<…>`                           |
-| anything else                      | `Utf8` (via pgx's text protocol)    |
-
-Batching: send a single record batch for MVP (the table widget is happy with one batch; we can split later for very large results).
-
----
-
-## Repository changes (this repo)
-
-```
-ghost_serve/
-  internal/cmd/
-    serve.go                          NEW – Cobra command
-    serve_test.go                     NEW
-  internal/serve/
-    server.go                         NEW – net/http server + mux + listener
-    assets.go                         NEW – embed.FS resolver (SPA fallback, cache headers)
-    bootstrap.go                      NEW – GET /api/bootstrap (projectId, version)
-    databases.go                      NEW – GET /api/databases (ghost-api passthrough)
-    execute.go                        NEW – POST /api/executeQuery (NDJSON producer)
-    arrow.go                          NEW – POST /api/arrowResults (Arrow IPC producer)
-    cancel.go                         NEW – POST /api/cancelRun
-    runs.go                           NEW – in-memory Run store keyed by runId
-    pgtypes.go                        NEW – PG OID → Arrow type mapping + value coercion
-    wire.go                           NEW – Go types matching widget request/response shapes
-    server_test.go                    NEW
-    assets_test.go                    NEW
-    execute_test.go                   NEW – uses pgx + a real test PG or pgmock
-    arrow_test.go                     NEW – validates IPC output via apache-arrow Go reader
-    web/                              NEW – embed root; web/dist contents land here
-      .gitkeep
-  web/                                NEW – Vite app workspace (not Go)
-    package.json
-    vite.config.ts
-    tsconfig.json
-    index.html
-    .gitignore                        (dist/, node_modules/)
-    src/
-      main.tsx
-      app.tsx
-      styles.css
-      components/
-        DatabasePicker.tsx
-        QueryPanel.tsx
-        Header.tsx
-      api/
-        bootstrap.ts                  (fetch /api/bootstrap once)
-        databases.ts                  (fetch /api/databases)
-      lib/
-        url-state.ts                  (?db=<id>)
-  scripts/
-    build-web.sh                      NEW – npm ci && npm run build && copy to internal/serve/web/
-  check                               UPDATED – run build-web.sh before go install
-  .github/workflows/*.yml             UPDATED – build web before go build/release
-  Dockerfile                          UPDATED – multi-stage node + go build
-  docs/cli/ghost_serve.md             AUTO-GENERATED via cmd/generate-docs
-  README.md                           UPDATED – Commands table + Usage examples
-  CLAUDE.md                           UPDATED – describe internal/serve/ and web/
-```
-
----
-
-## The CLI command (`ghost serve`)
-
-`internal/cmd/serve.go`, all standard patterns from `CLAUDE.md`:
-
-- `SilenceUsage: true`, `RunE`, `ValidArgs: cobra.NoFileCompletions`.
-- Gated behind `GHOST_EXPERIMENTAL` until polished, then promoted.
-- Flags:
-  - `--port int` — explicit port; default `0` → kernel picks via `net.Listen("tcp", "127.0.0.1:0")`.
-  - `--host string` — bind address, default `127.0.0.1`. Warn if user overrides to non-loopback.
-  - `--no-open` — skip browser open.
-- Loads `App` via `PersistentPreRunE`. Uses `app.GetAll()` (config + client + projectID).
-- Browser open: reuse `common.OpenBrowserAsync(url)` (already used by `login` / `payment add`). Honors `--no-open`.
-- Shutdown on `cmd.Context().Done()` via `srv.Shutdown(ctx)`.
-- Analytics: add `serve` to `wrapCommands` in `root.go`. No sensitive args.
-
-Output (stderr to keep stdout free for future scripting use):
-```
-Listening on http://127.0.0.1:54321
-Opened browser. Press Ctrl+C to stop.
-```
-
----
-
-## The web app (`web/`)
-
-### Stack
-
-- **React 19**, **Vite 7**, **TypeScript 5**.
-- **Tailwind v3.3** — required because `@timescale/popsql-query-widget` is pinned to v3 (its config re-exports `@popsql/lollipop/tailwind.config`).
-- **TanStack Query v5** for `/api/databases` and `/api/bootstrap` polling.
-- `@timescale/popsql-query-widget` (private npm) + its peer deps: `react@19`, `react-dom@19`, `framer-motion@^12`.
-- Single CSS import: `@timescale/popsql-query-widget/index.css` (precompiled by the widget's `bin/package.sh`).
-
-### Layout
-
-```
-┌────────────────────────────────────────────────────────────┐
-│  ghost                                       [ db-name ▾ ] │
-├────────────────────────────────────────────────────────────┤
-│                                                            │
-│  <QueryWidget id="…" query={query} … />                    │
-│                                                            │
-└────────────────────────────────────────────────────────────┘
-```
-
-- Header: ghost logo + database `<select>` populated from `GET /api/databases`. Selection mirrored to `?db=<id>`.
-- Body: full-height `<QueryWidget>`. Empty state when no DB selected.
-- Auto-select if exactly one ready database. Non-ready statuses shown but disabled.
-
-### Wiring the widget
-
-```tsx
-<TimescaleResultsCacheContextProvider baseUrl={window.location.origin}>
-  <QueryWidgetProvider theme="light">
-    <ContextMenuProvider>
-      <QueryWidget
-        id={`ghost-${databaseId}`}
-        query={query}
-        onQueryChange={setQuery}
-        // sessionKey intentionally omitted → one-shot ephemeral mode
-        getExecuteQueryData={({ runId, query }) => ({
-          engine: ExecuteQueryEngine.timescaleQuery,
-          params: { projectId, serviceId: databaseId, query, runId },
-        })}
-      />
-      <ContextMenuContext.Consumer>{({ render }) => render()}</ContextMenuContext.Consumer>
-    </ContextMenuProvider>
-  </QueryWidgetProvider>
-</TimescaleResultsCacheContextProvider>
-```
-
-`projectId` is fetched from `GET /api/bootstrap` at app boot; `databaseId` comes from the picker (and URL state). The widget hits `${origin}/api/{executeQuery,arrowResults,cancelRun}` — all served by the Go server in-process.
-
-### Vite config
-
-- `server.proxy` forwards `/api/*` to a configurable local port for dev mode (`ghost serve --port 5174` while Vite runs on `:5173`).
-- Copy Monaco workers + DuckDB workers/wasm into the build output adjacent to `index.js` (port the relevant `Vite.config.ts` plugin from `web-cloud/vite.config.ts:30-203`).
-- Exclude `@timescale/popsql-query-widget` from `optimizeDeps` so workers resolve sibling chunks correctly.
-- Output to `web/dist/`.
-
----
-
-## The local HTTP server (`internal/serve/`)
-
-### Routes
-
-```
-GET   /healthz             → {"ok":true}
-GET   /api/bootstrap       → { projectId, version }
-GET   /api/databases       → ghost-api passthrough (list user's databases)
-POST  /api/executeQuery    → NDJSON producer; runs query in-process
-POST  /api/arrowResults    → Arrow IPC producer; consumes runId state
-POST  /api/cancelRun       → best-effort pg_cancel_backend
-*     everything else      → embedded SPA (SPA fallback to index.html)
-```
-
-`/api/databases` is the only ghost-api hop. Implemented as a thin call: read the API client from `App`, hit `ListDatabases`, return the JSON shape the SPA expects (probably the API's own DTO — defer trimming until UI work). Password lookup happens lazily inside `executeQuery` via `common.GetPassword`, not in `/api/databases`.
-
-### Static asset serving (`assets.go`)
-
-- `//go:embed all:web` rooted at `internal/serve/web/`. Built by `scripts/build-web.sh`.
-- Resolver:
-  - `/` → `/index.html`.
-  - Exact FS match → serve with detected `Content-Type`.
-  - Path with no extension in last segment → `index.html` (SPA fallback).
-  - Otherwise → 404.
-- Cache headers:
-  - `Cache-Control: public, max-age=31536000, immutable` for `/assets/*`.
-  - `Cache-Control: no-cache` for everything else.
-- Empty FS handling: if `index.html` is absent, serve a placeholder HTML linking to `scripts/build-web.sh`. Lets `go build` / `go test` work without a JS build.
-
-### `Run` store (`runs.go`)
-
-```go
-type Run struct {
-  ID          string
-  ProjectID   string
-  ServiceID   string
-  Schema      *arrow.Schema
-  Records     <-chan arrow.Record   // closed when query finishes
-  Done        chan struct{}         // closed on terminal status
-  Err         error                 // set before Done is closed
-  RowCount    int64
-  Cancel      context.CancelFunc    // cancels the pg query context
-  StartedAt   time.Time
-  FinishedAt  time.Time
-}
-```
-
-- `runs.Store` is a `sync.Map[string]*Run` keyed by `runId`.
-- Runs older than N minutes (e.g. 10) are reaped by a background goroutine after `Done` closes.
-- `executeQuery` registers a `Run`, kicks off the PG query in a goroutine, and returns the NDJSON stream from the same handler. The goroutine pushes record batches into `Run.Records`.
-- `arrowResults` looks up the `Run`, waits for `Schema` to be set, writes the IPC schema, then range-reads from `Run.Records` and writes each batch to the response with `Flush()`.
-- `cancelRun` calls `Run.Cancel()`.
-
-### `executeQuery` flow (`execute.go`)
-
-1. Decode request body into `wire.ExecuteQueryRequest`.
-2. Validate `projectId` matches the CLI's active project; reject mismatches with 403 (the binary is single-user but defense in depth).
-3. Resolve `serviceId` → `(host, port, database, sslmode, ...)` via `app.GetClient().GetDatabaseWithResponse(ctx, serviceID)` cache.
-4. Resolve password via `common.GetPassword(database)`. If `common.ErrPasswordNotFound`, terminate the stream with `{ "success": false, "error": { "message": "no password found — run 'ghost password <db>' or add to ~/.pgpass" } }`.
-5. `common.CheckReady(database)` — if not ready, return the same shape with the actionable message.
-6. Open a `pgx.Conn` (per-query, closed on goroutine exit).
-7. `conn.Query(ctx, sql)` — capture `FieldDescriptions` once available.
-8. Build `arrow.Schema` from the `FieldDescriptions` (`pgtypes.go`).
-9. Write `{ "columns": [...] }` NDJSON line to the executeQuery response writer + `http.Flusher.Flush()`. Register `Run.Schema` so `arrowResults` can proceed.
-10. Stream rows → `array.RecordBuilder` (chunked at e.g. 1024 rows per batch) → push each `arrow.Record` to `Run.Records`.
-11. On `rows.Err()`: close `Run.Records`, write `{ "success": false, "error": ... }`, close.
-12. On clean finish: close `Run.Records`, write `{ "success": true, "rowCount": N, ... }`, close.
-13. On `ctx.Done()` (client aborted or `/api/cancelRun` invoked): `pg_cancel_backend` via a side channel connection, mark `Run` with `error.cancel: true`.
-
-### `arrowResults` flow (`arrow.go`)
-
-1. Decode request body, look up `Run`.
-2. `Content-Type: application/vnd.apache.arrow.stream`.
-3. `ipc.NewWriter(w, ipc.WithSchema(run.Schema))`.
-4. Range over `Run.Records` — `writer.Write(record)` + `Flush()` after each.
-5. `writer.Close()` when the channel closes.
-6. If `Run.Err` was set before any batch arrived, return HTTP 500 with `{ error: { message: ... } }`.
-
-### `cancelRun` flow
-
-Look up `Run`, call `Run.Cancel()`. Return `204 No Content`. `executeQuery`'s goroutine sees `ctx.Done()` and terminates with `error.cancel: true`.
-
-### Port selection / browser open / shutdown
-
-Same as memory-engine's pattern, ported to Go:
-- `net.Listen("tcp", host+":0")` for kernel-assigned port (no probe/release race).
-- Explicit `--port` is strict — bind failure surfaces directly.
-- `common.OpenBrowserAsync(url)` (existing helper).
-- Graceful shutdown on `cmd.Context().Done()` via `srv.Shutdown(ctx)` with a 5s deadline.
-
----
-
-## Asset embedding
-
-Same as the previous plan version — `embed.FS` rooted at `internal/serve/web/`, populated by `scripts/build-web.sh` (`cd web && npm ci && npm run build && cp -r dist/* ../internal/serve/web/`). `web/dist/` is git-ignored; `internal/serve/web/.gitkeep` makes `//go:embed` happy.
-
-Why not the memory-engine base64-into-TS approach: Go's `embed.FS` is the natural fit, keeps assets raw (no 4/3× inflation), and eliminates a build step.
-
----
-
-## ghost-api changes
-
-**None.** This was the main motivation for the lean approach. The only ghost-api call from the local server is the read-only `ListDatabases` (and `GetDatabase` for password fetch), which already exist.
-
----
-
-## Build / CI
-
-- `scripts/build-web.sh` runs `npm ci` + `npm run build` and syncs `web/dist/` → `internal/serve/web/`.
-- `check` script runs `scripts/build-web.sh` before `go install`.
-- CI: in `.github/workflows/*.yml`, install Node 22, run `scripts/build-web.sh` before any Go build step (test, lint, release).
-- `Dockerfile`: multi-stage — `node:22` stage builds `web/dist/` and copies into `internal/serve/web/`, then `golang:1.x` stage builds the binary.
-- Release pipeline (GoReleaser) needs Node available — easiest is to invoke `scripts/build-web.sh` as a `before` hook in `.goreleaser.yaml`.
-- Binary size impact: rough order-of-magnitude based on memory-engine (~7MB compressed assets, mostly Monaco + DuckDB-WASM). Acceptable.
-
----
-
-## Testing
-
-### Go side (`CLAUDE.md` patterns)
-
-- `internal/cmd/serve_test.go` — `runCommand` harness with mock API client; assert `--no-open`, auto-port, explicit port collision error, graceful shutdown on context cancel.
-- `internal/serve/server_test.go` — full-stack server, `/healthz`, `/api/bootstrap`, asset serving, SPA fallback, 404 on missing static asset.
-- `internal/serve/assets_test.go` — covers cache headers (`/assets/*` immutable, others no-cache).
-- `internal/serve/execute_test.go` — fires a real PG query against a `pgmock` or a containerized Postgres (CI), asserts NDJSON output: `columns` line, then `success` line; verifies the parallel `/api/arrowResults` returns a valid IPC stream that round-trips through Apache Arrow Go's reader and matches the expected rows.
-- `internal/serve/arrow_test.go` — unit tests for PG OID → Arrow type mapping, value coercion edge cases (null, numeric, array, json, timestamptz).
-- `internal/serve/cancel_test.go` — verifies `/api/cancelRun` interrupts a long-running query and surfaces `error.cancel: true` on executeQuery.
-
-### Web side
-
-- One Vitest unit per logic module: `lib/url-state.ts` round-trip, `api/databases.ts` selector behavior.
-- No widget integration tests; the widget is treated as a black box.
-
-### End-to-end (optional, follow-up)
-
-- Playwright smoke: spin up `ghost serve --no-open --port 5599` against a test ghost database, drive the UI to run `select 1`, assert the result table shows `1`.
-
----
-
-## Out of scope (for MVP)
-
-- Session mode (`createSession`, `sessionEvents`, `executeSessionQuery`, `closeSession`).
-- Saving / loading queries; per-DB query history.
-- Schema browser sidebar.
-- Multi-tab queries.
-- Numeric precision-preserving Arrow `Decimal128` (we use `Utf8` for `numeric`).
-- Query timeout enforcement beyond the existing `HTTPClient.Timeout`.
-- Auth on the localhost listener (loopback bind is the boundary).
-- Embedding into the docker image as a primary use case — Dockerfile still works but `ghost serve` from inside a container isn't a target.
-
----
-
-## Decisions (locked in)
-
-| # | Topic | Decision |
-|---|-------|----------|
-| 1 | Apache Arrow Go dep | Yes — keep the widget unmodified, ship the Arrow dep. |
-| 2 | DB driver | `pgx/v5` — copy popsql-query's approach verbatim. |
-| 3 | Browser open | Open by default; `--no-open` flag opts out. |
-| 4 | Web app dir | `web/` at repo root. |
-| 5 | JS package manager | **Bun**, via a self-bootstrapping `./bun` wrapper script (copied from `../ox/bun`). No new system dependencies. |
-| 6 | Private npm registry | `@timescale/*` is on GitHub Packages. Translate `web-cloud/.yarnrc.yml` into `bunfig.toml`'s `[install.scopes]` block; CI gets the token from `GITHUB_TOKEN` or a fine-grained PAT, mirroring web-cloud's deploy-to-dev workflow. |
-| 7 | Tailwind | v3 — widget is pinned to v3. |
-| 8 | Not-logged-in handling | Fail fast with the standard `ghost login` hint. |
-| 9 | Session mode | **In MVP.** `sessionKey` is derived from the selected database ID — switching DBs invalidates the session; page reload mints a new one; `SessionError` triggers the widget's built-in re-create flow. |
-| 10 | Project scope | No project switcher; SPA inherits the CLI's active space. |
-| 11 | Localhost auth | No URL token; bind to `127.0.0.1` only. |
-| 12 | Type handling | Copy popsql-query's PG OID → Arrow type + value coercion logic verbatim. Don't redesign. |
-| 13 | E2E testing | Playwright + Chrome DevTools MCP. Throwaway test DB via `ghost create`. |
-
----
-
-## Progress
-
-- [x] Research: widget exports + wire protocol
-- [x] Research: web-cloud integration patterns
-- [x] Research: memory-engine `me serve` implementation
-- [x] Plan v1 — proxy-through-ghost-api architecture
-- [x] Plan v2 — in-process query execution architecture (this document)
-- [x] Discovery: popsql-query type mapping + Arrow writer + cancellation
-- [x] Discovery: `../ox/bun` self-bootstrap wrapper
-- [x] Discovery: `web-cloud/.yarnrc.yml` + deploy-to-dev GH workflow → bun equivalent
-- [x] Discovery: Arrow Go module path + pgx version pinning
-- [x] Step 1 — `ghost serve` skeleton + static SPA + `/api/databases` (validated end-to-end)
-- [x] Step 2 — query execution path (executeQuery, arrowResults, sessions, cancel) — widget integration + 6-type smoke test
-- [x] Step 3 — polish, docs, ungate from `GHOST_EXPERIMENTAL`
-- [x] E2E test pass (manual via Chrome DevTools MCP against a live Timescale Postgres)
-
-### Resolved: `@timescale/popsql-query-widget` private-registry auth
-
-Initial `bun install` got 403 from `https://npm.pkg.github.com/@timescale%2fpopsql-query-widget` because the default `gh auth` token only had `repo` / `read:org`. Resolution: `gh auth refresh -h github.com -s read:packages` adds the missing scope; `scripts/build-web.sh` then resolves the widget cleanly. CI uses `secrets.GITHUB_TOKEN` which already has `read:packages` for owner-controlled packages.
-
----
-
-## Discovery findings
-
-### popsql-query — what to port verbatim
-
-Layout (`/Users/murrayju/dev/timescale/popsql-query/internal/`):
-
-| Path | Lines | Action |
-|------|-------|--------|
-| `types/{binary,date,guid,json,numeric,types}.go` | 290 | **Port verbatim** — custom scan types preserving precision/special values (NaN, ±Inf, Postgres `bytea` hex format, plain Date/DateTime without TZ, Numeric, JSON, GUID). |
-| `driver/adapter.go` | 219 | **Port partial** — keep `baseAdapter` / `baseDriver` / `Rows` / `QueryArgs` / `Columns` machinery and `cancelContext` helper; drop the multi-driver registry (we only need PG). |
-| `driver/postgres.go` | ~250 | **Port verbatim** — `pgx/v5/stdlib.OpenDB` integration, `postgresQueryTracer` for `CommandTag.RowsAffected()`, `scanType` overrides for JSON/JSONB/NUMERIC/BYTEA/DATE/TIMESTAMP/TIMESTAMPTZ, `NormalizeError` for `pgconn.PgError` (fatal flag, code/detail/hint/position, multi-statement guard). |
-| `writer/arrow.go` | ~340 | **Port verbatim** — `RecordBuilder` wrapper around `array.RecordBuilder`; appends `__popsql_row_num__` Int64 column to every schema (preserves original row order); attaches `__popsql_columns__` JSON metadata to the schema (original column descriptors round-trip to the frontend); `arrowType()` + `builderFn` mapping by `ScanType`. |
-| `writer/record.go` | 307 | **Port partial** — the row-iteration loop + record-flush logic. |
-| `writer/result.go` | 393 | **Port partial** — only the success/error result envelopes; drop Parquet/CSV/TSV writers. |
-| `handler.go`, `run.go`, `session.go`, `store.go` | 1311 | **Do NOT port** — we write fresh handlers that match the widget's wire protocol (different URL shape, different request bodies, single-user, no Redis clustering, no S3 upload). |
-
-Key patterns inherited:
-
-- **Cancellation**: `pgConn.CancelRequest(ctx)` is the canonical pg cancel — captured via `b.conn.Raw(func(driverConn any) error { pgConn = driverConn.(*stdlib.Conn).Conn().PgConn(); return nil })` after `stdlib.OpenDB`. Wired through `cancelContext()` in `adapter.go`.
-- **Row order**: Arrow batches don't guarantee row order across batches, so popsql-query appends a synthetic `__popsql_row_num__` Int64 column. We adopt the same convention so the widget's table component renders in query order.
-- **Schema metadata**: original column descriptors (with PG type name) are JSON-encoded and stashed in the Arrow schema's metadata under `__popsql_columns__`. The frontend uses this for type-aware rendering.
-- **Application name**: connections set `application_name` to a constant for server-side identification (port the constant; rename it to `"ghost-cli"` or similar).
-- **SSL handling**: pgx's default `sslmode=prefer` is used unless an explicit TLS config is set, in which case `pgxCfg.Fallbacks = nil` to require encryption. Ghost cloud DBs require TLS, so we'll set explicit TLS config.
-
-### `../ox/bun` self-bootstrap wrapper
-
-431-byte bash script. Pinned to `bun-v1.3.14`. Downloads to `./download/bun/<version>/bin/bun` on first invocation via the official `https://bun.sh/install` script with `BUN_INSTALL` env override. `exec`s the downloaded binary with all forwarded args.
-
-**Action**: copy verbatim to `./bun` in this repo; add `download/` to `.gitignore`.
-
-### GitHub Packages registry auth
-
-Web-cloud (`deploy-to-dev.yml`) uses the auto-provisioned `secrets.GITHUB_TOKEN`:
-
-```yaml
-- name: Setup .yarnrc.yml
-  run: yarn config set npmScopes.timescale.npmAuthToken $NPM_AUTH_TOKEN
-  env:
-    NPM_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-```
-
-Bun reads `.npmrc` natively (and `bunfig.toml` for bun-specific options). Plan:
-
-- `web/.npmrc` (gitignored, committed-template version is `web/.npmrc.example`):
-  ```
-  @timescale:registry=https://npm.pkg.github.com/
-  //npm.pkg.github.com/:_authToken=${NPM_AUTH_TOKEN}
-  ```
-- CI sets `NPM_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}` on the bun-install step.
-- Local devs export `NPM_AUTH_TOKEN` to a GitHub PAT with `read:packages` scope (documented in README).
-
-### Module versions (locked to match popsql-query)
-
-- `github.com/apache/arrow-go/v18 v18.5.2`
-- `github.com/jackc/pgx/v5 v5.8.0` (`stdlib`, `pgconn`)
-- Indirect deps already pulled by popsql-query (`pgpassfile`, `pgservicefile`, `puddle/v2`).
-
----
-
-## Sequencing (as delivered)
-
-Three commits on `murrayju/serve`, in this order:
-
-1. `ae9e4f9` — Add ghost serve skeleton. Cobra command behind `GHOST_EXPERIMENTAL`, embed.FS asset handler with SPA fallback + cache headers, `/api/bootstrap` + `/api/databases`, Vite/React workspace with picker + empty body, bun self-bootstrap wrapper, scripts/build-web.sh.
-2. `2df095e` — Fix build-web.sh and pin widget version (`--cwd` doesn't apply to bun's `run`; widget pinned to `0.0.0-dev.156`).
-3. `43921bd` — Wire the popsql query widget into ghost serve. Ported dbtypes + dbdriver + arrow encoder from popsql-query, implemented executeQuery + arrowResults + sessions + cancel handlers, wired `<QueryWidget>` into the SPA with Vite worker/wasm asset emission + node polyfills, React 18 pin.
-4. `d741355` — Polish ghost serve and ungate from GHOST_EXPERIMENTAL. CLAUDE.md + README updates, generated `docs/cli/ghost_serve.md`, tests for wire / assets / store / cmd, favicon + form-name a11y tidy-ups.
-5. `045261e` — Build the web bundle in CI before Go builds. Both `.github/workflows/{test,release}.yaml` now run `./scripts/build-web.sh` before any Go command, sourcing the widget from GitHub Packages via the auto-provisioned `secrets.GITHUB_TOKEN`.
-
-## Follow-ups (out of scope for this branch)
-
-- **Decimal128 for NUMERIC — declined.** Postgres `NUMERIC` accepts NaN, ±Infinity, and unbounded precision; Arrow `Decimal128` is 38 digits and can't carry any of those, so an implementation would need per-row fallback branching and an upstream change in popsql-query (which uses the same string encoding for the same reasons). The widget's table already gets `isNumeric: true` for right-align + sort, so the on-wire string is a non-issue for UX. Not worth doing.
-- Query timeout enforcement (the widget sends `timeout` but we ignore it).
-- Server-side `slog` logging + log levels (currently silent by design).

From 620517ba191c6b135ca5cef5d3546838fbce5fdf Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Wed, 3 Jun 2026 14:53:44 -0400
Subject: [PATCH 30/39] narrow file permissions

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Justin Murray <justin@murrayju.com>
---
 internal/serve/state.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/internal/serve/state.go b/internal/serve/state.go
index cd6b6a9..2d6809f 100644
--- a/internal/serve/state.go
+++ b/internal/serve/state.go
@@ -79,7 +79,7 @@ func (s *stateStore) save(state serveState) error {
 	if err := tmp.Close(); err != nil {
 		return fmt.Errorf("close temp file: %w", err)
 	}
-	if err := os.Chmod(tmpName, 0644); err != nil {
+	if err := os.Chmod(tmpName, 0600); err != nil {
 		return fmt.Errorf("chmod temp file: %w", err)
 	}
 	if err := os.Rename(tmpName, s.path); err != nil {

From 9fcb29d28112d4e4bcd268e23982ce0484d3d67e Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Wed, 3 Jun 2026 14:56:04 -0400
Subject: [PATCH 31/39] warn when binding non-loopback

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Justin Murray <justin@murrayju.com>
---
 internal/cmd/serve.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/internal/cmd/serve.go b/internal/cmd/serve.go
index 2c2c9fb..102fb76 100644
--- a/internal/cmd/serve.go
+++ b/internal/cmd/serve.go
@@ -30,6 +30,9 @@ of this command — press Ctrl+C to stop it.`,
 			if _, _, err := app.GetClient(); err != nil {
 				return err
 			}
+			if host != "127.0.0.1" && host != "localhost" && host != "::1" {
+				cmd.PrintErrf("Warning: binding to %q exposes the SQL UI to your network. Consider using 127.0.0.1.\n", host)
+			}
 
 			srv, err := serve.New(serve.Config{
 				Host: host,

From 02e3b7189f0f63f267548b80551fb3b9987ee6c5 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Wed, 3 Jun 2026 15:05:46 -0400
Subject: [PATCH 32/39] fix nil handling in date scan methods

---
 internal/serve/dbtypes/date.go | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/internal/serve/dbtypes/date.go b/internal/serve/dbtypes/date.go
index bc84a2c..b10c6c1 100644
--- a/internal/serve/dbtypes/date.go
+++ b/internal/serve/dbtypes/date.go
@@ -10,7 +10,7 @@ type Date string
 func (d *Date) Scan(src any) error {
 	switch val := src.(type) {
 	case nil:
-		d = nil
+		*d = ""
 	case string:
 		*d = Date(val)
 	case time.Time:
@@ -26,7 +26,7 @@ type ClockTime string
 func (c *ClockTime) Scan(src any) error {
 	switch val := src.(type) {
 	case nil:
-		c = nil
+		*c = ""
 	case string:
 		*c = ClockTime(val)
 	case time.Time:
@@ -42,7 +42,7 @@ type ClockTimeTZ string
 func (c *ClockTimeTZ) Scan(src any) error {
 	switch val := src.(type) {
 	case nil:
-		c = nil
+		*c = ""
 	case string:
 		*c = ClockTimeTZ(val)
 	case time.Time:
@@ -58,7 +58,7 @@ type DateTime string
 func (d *DateTime) Scan(src any) error {
 	switch val := src.(type) {
 	case nil:
-		d = nil
+		*d = ""
 	case string:
 		*d = DateTime(val)
 	case time.Time:
@@ -74,7 +74,7 @@ type Timestamp string
 func (t *Timestamp) Scan(src any) error {
 	switch val := src.(type) {
 	case nil:
-		t = nil
+		*t = ""
 	case string:
 		*t = Timestamp(val)
 	case time.Time:

From d84f365acbbf85807dce856b55ca1c45d5341495 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Wed, 3 Jun 2026 15:34:56 -0400
Subject: [PATCH 33/39] add test coverage

---
 internal/cmd/main_test.go  |  10 +++
 internal/cmd/serve_test.go | 125 +++++++++++++++++++++++++++++++++++--
 2 files changed, 130 insertions(+), 5 deletions(-)

diff --git a/internal/cmd/main_test.go b/internal/cmd/main_test.go
index ddbbe0e..fe8ea09 100644
--- a/internal/cmd/main_test.go
+++ b/internal/cmd/main_test.go
@@ -57,6 +57,16 @@ func withStdin(input string) runOption {
 	}
 }
 
+// withContext sets the context passed to cmd.ExecuteContext. Use this for
+// commands that block until the context is cancelled (e.g. `ghost serve`):
+// pass an already-cancelled context to exercise the command without leaving
+// a server running for the duration of the test.
+func withContext(ctx context.Context) runOption {
+	return func(rc *runConfig) {
+		rc.ctx = ctx
+	}
+}
+
 // withIsTerminal overrides util.IsTerminal for the duration of the test.
 // Use this with withStdin to simulate interactive terminal input.
 func withIsTerminal(isTerminal bool) runOption {
diff --git a/internal/cmd/serve_test.go b/internal/cmd/serve_test.go
index fadceac..d896fea 100644
--- a/internal/cmd/serve_test.go
+++ b/internal/cmd/serve_test.go
@@ -1,18 +1,133 @@
 package cmd
 
 import (
+	"context"
 	"errors"
+	"net"
+	"slices"
+	"strconv"
+	"strings"
 	"testing"
 )
 
 func TestServeCmd(t *testing.T) {
-	tests := []cmdTest{
+	type serveCase struct {
+		name string
+		// preBindHost, if set, opens a listener on this host before invoking
+		// `ghost serve`. Use this to force a deterministic bind failure (the
+		// chosen port is substituted for the "%PORT%" placeholder in args).
+		preBindHost string
+		args        []string
+		// opts builds the runOptions for this case. It receives *testing.T so
+		// helpers like a fail-if-called OpenBrowser stub can use t.Fatal.
+		opts func(t *testing.T) []runOption
+		// Exactly one of wantErr / wantErrPrefix may be set. If neither is set,
+		// the command is expected to succeed.
+		wantErr        string
+		wantErrPrefix  string
+		stderrIncludes []string
+		stderrExcludes []string
+	}
+
+	tests := []serveCase{
 		{
-			name:    "not logged in",
-			args:    []string{"serve", "--no-open"},
-			opts:    []runOption{withClientError(errors.New("authentication required: no credentials found"))},
+			name: "not logged in",
+			args: []string{"serve", "--no-open"},
+			opts: func(t *testing.T) []runOption {
+				return []runOption{withClientError(errors.New("authentication required: no credentials found"))}
+			},
 			wantErr: "authentication required: no credentials found",
 		},
+		{
+			name:          "port already in use returns bind error",
+			preBindHost:   "127.0.0.1",
+			args:          []string{"serve", "--no-open", "--port", "%PORT%"},
+			wantErrPrefix: "listen on 127.0.0.1:",
+		},
+		{
+			name:           "non-loopback host emits warning before bind",
+			preBindHost:    "0.0.0.0",
+			args:           []string{"serve", "--no-open", "--host", "0.0.0.0", "--port", "%PORT%"},
+			wantErrPrefix:  "listen on 0.0.0.0:",
+			stderrIncludes: []string{`Warning: binding to "0.0.0.0" exposes the SQL UI to your network. Consider using 127.0.0.1.`},
+		},
+		{
+			name: "no-open skips browser",
+			args: []string{"serve", "--no-open"},
+			opts: func(t *testing.T) []runOption {
+				// Cancel the context before runCommand executes so srv.Serve
+				// returns immediately instead of blocking on a real listener.
+				ctx, cancel := context.WithCancel(context.Background())
+				cancel()
+				return []runOption{
+					withContext(ctx),
+					withOpenBrowser(func(string) error {
+						t.Fatal("OpenBrowser must not be called when --no-open is set")
+						return nil
+					}),
+				}
+			},
+			stderrIncludes: []string{
+				"Listening on http://127.0.0.1:",
+				"Press Ctrl+C to stop.",
+			},
+			stderrExcludes: []string{"Failed to open browser"},
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			args := tc.args
+			if tc.preBindHost != "" {
+				ln, err := net.Listen("tcp", tc.preBindHost+":0")
+				if err != nil {
+					t.Fatalf("pre-bind on %s: %v", tc.preBindHost, err)
+				}
+				defer ln.Close()
+				port := strconv.Itoa(ln.Addr().(*net.TCPAddr).Port)
+				args = slices.Clone(tc.args)
+				for i, a := range args {
+					if a == "%PORT%" {
+						args[i] = port
+					}
+				}
+			}
+
+			var opts []runOption
+			if tc.opts != nil {
+				opts = tc.opts(t)
+			}
+			result := runCommand(t, args, nil, opts...)
+
+			switch {
+			case tc.wantErr != "":
+				if result.err == nil {
+					t.Fatal("expected error, got nil")
+				}
+				assertOutput(t, result.err.Error(), tc.wantErr)
+			case tc.wantErrPrefix != "":
+				if result.err == nil {
+					t.Fatal("expected error, got nil")
+				}
+				if !strings.HasPrefix(result.err.Error(), tc.wantErrPrefix) {
+					t.Errorf("err = %q, want prefix %q", result.err.Error(), tc.wantErrPrefix)
+				}
+			default:
+				if result.err != nil {
+					t.Fatalf("unexpected error: %v", result.err)
+				}
+			}
+
+			for _, want := range tc.stderrIncludes {
+				if !strings.Contains(result.stderr, want) {
+					t.Errorf("stderr missing %q:\n%s", want, result.stderr)
+				}
+			}
+			for _, unwanted := range tc.stderrExcludes {
+				if strings.Contains(result.stderr, unwanted) {
+					t.Errorf("stderr should not contain %q:\n%s", unwanted, result.stderr)
+				}
+			}
+		})
 	}
-	runCmdTests(t, tests)
 }

From c2c983a22481cea1491ac7d2d4cd3f36fa102355 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Wed, 3 Jun 2026 15:35:14 -0400
Subject: [PATCH 34/39] more test coverage

---
 internal/serve/state_test.go | 268 +++++++++++++++++++++++++++++++++++
 1 file changed, 268 insertions(+)
 create mode 100644 internal/serve/state_test.go

diff --git a/internal/serve/state_test.go b/internal/serve/state_test.go
new file mode 100644
index 0000000..646361f
--- /dev/null
+++ b/internal/serve/state_test.go
@@ -0,0 +1,268 @@
+package serve
+
+import (
+	"bytes"
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"runtime"
+	"testing"
+)
+
+// populatedState is reused across tests that exercise non-empty serialization.
+var populatedState = serveState{
+	SelectedDatabaseID: new("db-1"),
+	EditorHeight:       new(240),
+	EditorSQL:          new("select 1;"),
+}
+
+func TestStateStore_Load(t *testing.T) {
+	tests := []struct {
+		name string
+		// setup runs before load. nil means "leave the temp dir empty so
+		// the state file is missing".
+		setup   func(t *testing.T, store *stateStore)
+		wantErr bool
+		check   func(t *testing.T, got serveState)
+	}{
+		{
+			name: "missing file returns empty state",
+			check: func(t *testing.T, got serveState) {
+				if got != (serveState{}) {
+					t.Errorf("load = %+v, want empty state", got)
+				}
+			},
+		},
+		{
+			name: "round-trip via save restores all fields",
+			setup: func(t *testing.T, store *stateStore) {
+				if err := store.save(populatedState); err != nil {
+					t.Fatalf("save: %v", err)
+				}
+			},
+			check: func(t *testing.T, got serveState) {
+				assertStringPtr(t, "SelectedDatabaseID", got.SelectedDatabaseID, "db-1")
+				assertIntPtr(t, "EditorHeight", got.EditorHeight, 240)
+				assertStringPtr(t, "EditorSQL", got.EditorSQL, "select 1;")
+			},
+		},
+		{
+			name: "omitted fields remain nil",
+			setup: func(t *testing.T, store *stateStore) {
+				writeStateFile(t, store, `{"selectedDatabaseId":"abc"}`)
+			},
+			check: func(t *testing.T, got serveState) {
+				assertStringPtr(t, "SelectedDatabaseID", got.SelectedDatabaseID, "abc")
+				if got.EditorHeight != nil {
+					t.Errorf("EditorHeight = %v, want nil", *got.EditorHeight)
+				}
+				if got.EditorSQL != nil {
+					t.Errorf("EditorSQL = %v, want nil", *got.EditorSQL)
+				}
+			},
+		},
+		{
+			name: "invalid JSON returns error",
+			setup: func(t *testing.T, store *stateStore) {
+				writeStateFile(t, store, "{bad")
+			},
+			wantErr: true,
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			store := newStateStore(t.TempDir())
+			if tc.setup != nil {
+				tc.setup(t, store)
+			}
+			got, err := store.load()
+			if tc.wantErr {
+				if err == nil {
+					t.Fatal("expected error, got nil")
+				}
+				return
+			}
+			if err != nil {
+				t.Fatalf("load: %v", err)
+			}
+			if tc.check != nil {
+				tc.check(t, got)
+			}
+		})
+	}
+}
+
+func TestStateStore_SaveCreatesMissingConfigDir(t *testing.T) {
+	dir := filepath.Join(t.TempDir(), "nested", "config")
+	if err := newStateStore(dir).save(serveState{}); err != nil {
+		t.Fatalf("save: %v", err)
+	}
+	if _, err := os.Stat(filepath.Join(dir, stateFileName)); err != nil {
+		t.Fatalf("expected state file to exist after save: %v", err)
+	}
+}
+
+func TestStateStore_SaveWritesFileWith0600PermissionsUnix(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("unix permission semantics")
+	}
+	dir := t.TempDir()
+	if err := newStateStore(dir).save(serveState{}); err != nil {
+		t.Fatalf("save: %v", err)
+	}
+	info, err := os.Stat(filepath.Join(dir, stateFileName))
+	if err != nil {
+		t.Fatalf("stat: %v", err)
+	}
+	if mode := info.Mode().Perm(); mode != 0600 {
+		t.Errorf("perms = %v, want %v", mode, os.FileMode(0600))
+	}
+}
+
+func TestStateHandlers(t *testing.T) {
+	jsonGetHeaders := map[string]string{
+		"Content-Type":  "application/json",
+		"Cache-Control": "no-store",
+	}
+
+	tests := []struct {
+		name        string
+		method      string
+		body        string
+		presetState *serveState
+		wantStatus  int
+		wantHeaders map[string]string
+		checkBody   func(t *testing.T, body []byte)
+		checkStore  func(t *testing.T, store *stateStore)
+	}{
+		{
+			name:        "GET returns empty state by default",
+			method:      http.MethodGet,
+			wantStatus:  http.StatusOK,
+			wantHeaders: jsonGetHeaders,
+			checkBody: func(t *testing.T, body []byte) {
+				got := decodeServeState(t, body)
+				if got != (serveState{}) {
+					t.Errorf("body = %+v, want empty state", got)
+				}
+			},
+		},
+		{
+			name:        "GET returns previously saved state",
+			method:      http.MethodGet,
+			presetState: &serveState{SelectedDatabaseID: new("db-9")},
+			wantStatus:  http.StatusOK,
+			wantHeaders: jsonGetHeaders,
+			checkBody: func(t *testing.T, body []byte) {
+				got := decodeServeState(t, body)
+				assertStringPtr(t, "SelectedDatabaseID", got.SelectedDatabaseID, "db-9")
+			},
+		},
+		{
+			name:       "PUT persists body to store",
+			method:     http.MethodPut,
+			body:       `{"selectedDatabaseId":"db-7","editorHeight":300}`,
+			wantStatus: http.StatusNoContent,
+			checkStore: func(t *testing.T, store *stateStore) {
+				got, err := store.load()
+				if err != nil {
+					t.Fatalf("load: %v", err)
+				}
+				assertStringPtr(t, "SelectedDatabaseID", got.SelectedDatabaseID, "db-7")
+				assertIntPtr(t, "EditorHeight", got.EditorHeight, 300)
+				if got.EditorSQL != nil {
+					t.Errorf("EditorSQL = %v, want nil (not sent in body)", *got.EditorSQL)
+				}
+			},
+		},
+		{
+			name:       "PUT rejects invalid JSON with 400",
+			method:     http.MethodPut,
+			body:       "{bad",
+			wantStatus: http.StatusBadRequest,
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			srv := &Server{state: newStateStore(t.TempDir())}
+			if tc.presetState != nil {
+				if err := srv.state.save(*tc.presetState); err != nil {
+					t.Fatalf("preset save: %v", err)
+				}
+			}
+
+			var body io.Reader
+			if tc.body != "" {
+				body = bytes.NewReader([]byte(tc.body))
+			}
+			req := httptest.NewRequest(tc.method, "/api/state", body)
+			rr := httptest.NewRecorder()
+			switch tc.method {
+			case http.MethodGet:
+				srv.handleGetState(rr, req)
+			case http.MethodPut:
+				srv.handlePutState(rr, req)
+			default:
+				t.Fatalf("unsupported method %q", tc.method)
+			}
+
+			if rr.Code != tc.wantStatus {
+				t.Fatalf("status = %d, want %d\nbody: %s", rr.Code, tc.wantStatus, rr.Body.String())
+			}
+			for header, want := range tc.wantHeaders {
+				if got := rr.Header().Get(header); got != want {
+					t.Errorf("header %s = %q, want %q", header, got, want)
+				}
+			}
+			if tc.checkBody != nil {
+				tc.checkBody(t, rr.Body.Bytes())
+			}
+			if tc.checkStore != nil {
+				tc.checkStore(t, srv.state)
+			}
+		})
+	}
+}
+
+func writeStateFile(t *testing.T, store *stateStore, contents string) {
+	t.Helper()
+	if err := os.WriteFile(store.path, []byte(contents), 0600); err != nil {
+		t.Fatalf("write state file: %v", err)
+	}
+}
+
+func decodeServeState(t *testing.T, body []byte) serveState {
+	t.Helper()
+	var got serveState
+	if err := json.Unmarshal(body, &got); err != nil {
+		t.Fatalf("decode body: %v\nbody: %s", err, body)
+	}
+	return got
+}
+
+func assertStringPtr(t *testing.T, name string, got *string, want string) {
+	t.Helper()
+	if got == nil {
+		t.Errorf("%s = nil, want %q", name, want)
+		return
+	}
+	if *got != want {
+		t.Errorf("%s = %q, want %q", name, *got, want)
+	}
+}
+
+func assertIntPtr(t *testing.T, name string, got *int, want int) {
+	t.Helper()
+	if got == nil {
+		t.Errorf("%s = nil, want %d", name, want)
+		return
+	}
+	if *got != want {
+		t.Errorf("%s = %d, want %d", name, *got, want)
+	}
+}

From 53dc84e38dabeb99d83fa9dc2147ca8148de01f9 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Thu, 4 Jun 2026 16:43:15 -0400
Subject: [PATCH 35/39] respect read_only config in ghost serve query execution

---
 internal/serve/connect.go | 7 +++++--
 internal/serve/execute.go | 2 +-
 internal/serve/session.go | 2 +-
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/internal/serve/connect.go b/internal/serve/connect.go
index 55797ce..f2a37f5 100644
--- a/internal/serve/connect.go
+++ b/internal/serve/connect.go
@@ -54,8 +54,10 @@ func fetchDatabase(ctx context.Context, client api.ClientWithResponsesInterface,
 const defaultRole = "tsdbadmin"
 
 // openDriverForService resolves a ghost-api database, retrieves the password
-// for the default role, and opens a Postgres driver against it.
-func openDriverForService(ctx context.Context, client api.ClientWithResponsesInterface, projectID, serviceID string) (dbdriver.Driver, error) {
+// for the default role, and opens a Postgres driver against it. When readOnly
+// is true, the connection is opened with the tsdb_admin.read_only_connection
+// GUC set, matching the behavior of `ghost sql` under the read_only config.
+func openDriverForService(ctx context.Context, client api.ClientWithResponsesInterface, projectID, serviceID string, readOnly bool) (dbdriver.Driver, error) {
 	database, err := fetchDatabase(ctx, client, projectID, serviceID)
 	if err != nil {
 		return nil, err
@@ -76,6 +78,7 @@ func openDriverForService(ctx context.Context, client api.ClientWithResponsesInt
 		Database: database,
 		Role:     defaultRole,
 		Password: password,
+		ReadOnly: readOnly,
 	})
 	if err != nil {
 		return nil, newConnectErr("building connection string: %v", err)
diff --git a/internal/serve/execute.go b/internal/serve/execute.go
index f141680..a75a917 100644
--- a/internal/serve/execute.go
+++ b/internal/serve/execute.go
@@ -29,7 +29,7 @@ func (s *Server) handleExecuteQuery(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	driver, connErr := openDriverForService(r.Context(), client, req.ProjectID, req.ServiceID)
+	driver, connErr := openDriverForService(r.Context(), client, req.ProjectID, req.ServiceID, s.cfg.App.GetConfig().ReadOnly)
 	if connErr != nil {
 		ce := new(connectErr)
 		if errors.As(connErr, &ce) {
diff --git a/internal/serve/session.go b/internal/serve/session.go
index c3be5fa..2b58e54 100644
--- a/internal/serve/session.go
+++ b/internal/serve/session.go
@@ -44,7 +44,7 @@ func (s *Server) handleCreateSession(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	driver, err := openDriverForService(r.Context(), client, req.ProjectID, req.ServiceID)
+	driver, err := openDriverForService(r.Context(), client, req.ProjectID, req.ServiceID, s.cfg.App.GetConfig().ReadOnly)
 	if err != nil {
 		ce := new(connectErr)
 		if errors.As(err, &ce) {

From 046b3d7642a8ac95cc94e00c62060fd0988bde66 Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Thu, 4 Jun 2026 16:43:16 -0400
Subject: [PATCH 36/39] guard arrowResults wait on request context to avoid
 hang

---
 internal/serve/arrow_results.go | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/internal/serve/arrow_results.go b/internal/serve/arrow_results.go
index b60e5d2..eedf68b 100644
--- a/internal/serve/arrow_results.go
+++ b/internal/serve/arrow_results.go
@@ -30,7 +30,15 @@ func (s *Server) handleArrowResults(w http.ResponseWriter, r *http.Request) {
 		http.NotFound(w, r)
 		return
 	}
-	<-run.ready
+	// Wait for runQuery to finish buffering. Guard on the request context so a
+	// stray/duplicate arrowResults POST for a run that errored before ready was
+	// closed (e.g. the bufErr path in runQuery) doesn't block this handler
+	// indefinitely.
+	select {
+	case <-run.ready:
+	case <-r.Context().Done():
+		return
+	}
 
 	rb, err := NewRecordBuilder(run.columns)
 	if err != nil {

From 80f2edcc6fe82f1d4e47ef00b9bc638daf5844bb Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Thu, 4 Jun 2026 18:07:05 -0400
Subject: [PATCH 37/39] Restore upstream streaming design in ghost serve

The initial port of the query backend into `ghost serve` introduced several
regressions vs. the original upstream code. This restores the original design
where it was changed, and trims only what isn't needed for Postgres-only
support.

Streaming / memory (the important ones):
- Stream rows over a backpressured channel instead of buffering the entire
  result set in memory. A dedicated query goroutine (streamQuery) scans rows
  and hands them to handleArrowResults, which writes them straight to the
  Arrow IPC stream. Memory stays flat for large results and time-to-first-byte
  is fast again. Multi-statement runs execute prior statements fire-and-forget
  on the same connection, then stream the final statement (matching upstream).
- Restore adaptive Arrow record-batch sizing (initial 100 rows, 5 MiB target,
  min 5 / max 10000, 2x growth cap) instead of a static 1024-row batch.
- Revert the Postgres connection to the extended query protocol (drop the
  simple-protocol override, which had downsides and wasn't actually needed).
- Return structured JSON errors from the widget-facing handlers so the
  widget's checkApiError can surface the message (plain text was discarded).
- Guard arrowResults against concurrent consumers (single-reader, like the
  original pipe).

Cleanups / parity:
- Log previously-swallowed Close()/rows errors via a slog logger (like ghost
  mcp), rather than dropping them.
- Remove Postgres-irrelevant adapter code: ColumnCase (Snowflake), Metadata
  (BigQuery), the QueryArgs struct (Query now takes a string), the unused
  TotalRowCount method, and the dead SQL() join helper.
- Remove the unnecessary RuntimeParams nil-check.
- Correct the cancel.go and ErrMultiStatement comments, and drop references to
  private internal repos from the source comments.
- Clarify the timestamptz offset layout: "-07" is Go's signed-offset token
  (the "-" is the sign placeholder), not a double sign. The code is correct.

Tests: rewrite execute_test.go to exercise the streaming path end-to-end with
a fake driver (single + multi-statement, concurrent-consumer guard) and add
arrow_results_test.go for the adaptive batch sizing. Passes go test -race.
---
 internal/cmd/serve.go                |   7 +-
 internal/serve/arrow.go              |  15 +-
 internal/serve/arrow_results.go      | 108 +++++++++--
 internal/serve/arrow_results_test.go |  71 +++++++
 internal/serve/cancel.go             |   2 +-
 internal/serve/dbdriver/api.go       |  40 ++--
 internal/serve/dbdriver/cancel.go    |   9 +-
 internal/serve/dbdriver/driver.go    |  17 +-
 internal/serve/dbdriver/postgres.go  |  18 +-
 internal/serve/dbdriver/rows.go      |  34 +---
 internal/serve/dbtypes/date.go       |  14 +-
 internal/serve/dbtypes/types.go      |   6 +-
 internal/serve/execute.go            | 231 +++++++++++++----------
 internal/serve/execute_test.go       | 268 ++++++++++++++++++++++-----
 internal/serve/httperr.go            |  31 ++++
 internal/serve/server.go             |  13 ++
 internal/serve/session.go            |   7 +-
 internal/serve/store.go              |  63 ++++---
 internal/serve/wire.go               |  27 +--
 internal/serve/wire_test.go          |  56 ++----
 20 files changed, 684 insertions(+), 353 deletions(-)
 create mode 100644 internal/serve/arrow_results_test.go
 create mode 100644 internal/serve/httperr.go

diff --git a/internal/cmd/serve.go b/internal/cmd/serve.go
index 102fb76..409d3a3 100644
--- a/internal/cmd/serve.go
+++ b/internal/cmd/serve.go
@@ -35,9 +35,10 @@ of this command — press Ctrl+C to stop it.`,
 			}
 
 			srv, err := serve.New(serve.Config{
-				Host: host,
-				Port: port,
-				App:  app,
+				Host:   host,
+				Port:   port,
+				App:    app,
+				Logger: newLogger(cmd),
 			})
 			if err != nil {
 				return err
diff --git a/internal/serve/arrow.go b/internal/serve/arrow.go
index 7b5c9e2..316fe27 100644
--- a/internal/serve/arrow.go
+++ b/internal/serve/arrow.go
@@ -14,9 +14,10 @@ import (
 	"github.com/timescale/ghost/internal/serve/dbtypes"
 )
 
-// Ported from github.com/timescale/popsql-query/internal/writer/arrow.go.
-// Schema metadata + the synthetic __popsql_row_num__ column are preserved
-// because the widget's table renderer depends on both.
+// Arrow IPC encoding for query result sets. The schema metadata and the
+// synthetic __popsql_row_num__ column are required by the widget's table
+// renderer, which expects the same Arrow wire contract as the hosted query
+// service.
 
 const columnsMetadataKey = "__popsql_columns__"
 
@@ -86,8 +87,9 @@ func (rb *RecordBuilder) AppendRow(row []any) error {
 	return nil
 }
 
+// RecordRowCount returns the number of rows accumulated in the in-progress
+// record batch (reset to 0 by NewRecordBatch).
 func (rb *RecordBuilder) RecordRowCount() int64 { return rb.recordRowCount }
-func (rb *RecordBuilder) TotalRowCount() int64  { return rb.totalRowCount }
 
 // NewRecordBatch finalizes the in-progress record and resets the row counter.
 func (rb *RecordBuilder) NewRecordBatch() arrow.RecordBatch {
@@ -309,8 +311,9 @@ func unknownBuilderFn(builder array.Builder, value any) error {
 }
 
 // shouldMarshalJSON returns true for compound types (arrays, slices, maps,
-// structs) that aren't sql.Scanner-compliant. Most non-Postgres drivers don't
-// hit this in our use case, but it's preserved for parity with popsql-query.
+// structs) that aren't sql.Scanner-compliant. Postgres rarely hits this path,
+// but it's kept as a safe fallback for any driver value that can't be scanned
+// directly into one of the primitive arrow builders.
 func shouldMarshalJSON(t reflect.Type) bool {
 	switch t.Kind() {
 	case reflect.Pointer:
diff --git a/internal/serve/arrow_results.go b/internal/serve/arrow_results.go
index eedf68b..0d5882c 100644
--- a/internal/serve/arrow_results.go
+++ b/internal/serve/arrow_results.go
@@ -4,24 +4,23 @@ import (
 	"encoding/json"
 	"net/http"
 
+	"github.com/apache/arrow-go/v18/arrow"
 	"github.com/apache/arrow-go/v18/arrow/ipc"
 
 	"github.com/timescale/ghost/internal/serve/dbdriver"
 )
 
-const arrowBatchRows = 1024
-
 // handleArrowResults serves POST /api/arrowResults. The widget fires this
 // immediately after seeing the executeQuery columns line and expects a raw
-// Apache Arrow IPC stream of rows. Rows have already been scanned into
-// run.bufferedRows by executeQuery (so we can pick the right result set out
-// of a multi-statement run); we just convert them to Arrow record batches
-// and stream them out. When we're done we signal Run.done so the
-// executeQuery handler can emit its terminator.
+// Apache Arrow IPC stream of rows. The query goroutine (streamQuery) streams
+// scanned rows over run.rows; we convert them to Arrow record batches and
+// write them straight to the response. Backpressure on run.rows keeps memory
+// bounded and ensures a fast time-to-first-byte for large result sets. When
+// we're done we signal run.done so executeQuery can emit its terminator.
 func (s *Server) handleArrowResults(w http.ResponseWriter, r *http.Request) {
 	var req arrowResultsRequest
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
-		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		writeJSONError(w, http.StatusBadRequest, "invalid request body: "+err.Error())
 		return
 	}
 
@@ -30,10 +29,18 @@ func (s *Server) handleArrowResults(w http.ResponseWriter, r *http.Request) {
 		http.NotFound(w, r)
 		return
 	}
-	// Wait for runQuery to finish buffering. Guard on the request context so a
-	// stray/duplicate arrowResults POST for a run that errored before ready was
-	// closed (e.g. the bufErr path in runQuery) doesn't block this handler
-	// indefinitely.
+
+	// Only one caller may drain run.rows. Reject concurrent/duplicate fetches
+	// (mirrors the upstream single-reader pipe design). Without this guard a second
+	// caller would silently receive a truncated stream.
+	if !run.arrowStarted.CompareAndSwap(false, true) {
+		writeJSONError(w, http.StatusConflict, "arrow results are already being streamed for this run")
+		return
+	}
+
+	// Wait for streamQuery to publish columns. Guard on the request context so
+	// a stray request for a run that errored before columns were produced
+	// doesn't block this handler indefinitely.
 	select {
 	case <-run.ready:
 	case <-r.Context().Done():
@@ -42,8 +49,9 @@ func (s *Server) handleArrowResults(w http.ResponseWriter, r *http.Request) {
 
 	rb, err := NewRecordBuilder(run.columns)
 	if err != nil {
-		http.Error(w, "arrow schema: "+err.Error(), http.StatusInternalServerError)
+		writeJSONError(w, http.StatusInternalServerError, "arrow schema: "+err.Error())
 		run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "ghost"})
+		run.cancelQuery()
 		run.closeDone()
 		return
 	}
@@ -56,35 +64,95 @@ func (s *Server) handleArrowResults(w http.ResponseWriter, r *http.Request) {
 	defer ipcWriter.Close()
 	defer run.closeDone()
 
-	for _, row := range run.bufferedRows {
+	// batchRows is the target row count for the next record batch. It starts
+	// small (fast first byte) and is recomputed after each flush to track a
+	// target byte size, matching the upstream adaptive batching design.
+	batchRows := int64(initialRecordRowCount)
+	for row := range run.rows {
 		if err := r.Context().Err(); err != nil {
 			run.setError(&dbdriver.NormalizedError{Message: "request canceled", Source: "ghost", Cancel: true})
+			run.cancelQuery()
 			return
 		}
 		if err := rb.AppendRow(row); err != nil {
 			run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "ghost"})
+			run.cancelQuery()
 			return
 		}
-		if rb.RecordRowCount() >= arrowBatchRows {
-			if err := flushBatch(ipcWriter, rb, w); err != nil {
+		if rb.RecordRowCount() >= batchRows {
+			newTarget, err := flushBatch(ipcWriter, rb, w, batchRows)
+			if err != nil {
 				run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "ghost"})
+				run.cancelQuery()
 				return
 			}
+			batchRows = newTarget
 		}
 	}
 	if rb.RecordRowCount() > 0 {
-		if err := flushBatch(ipcWriter, rb, w); err != nil && run.err == nil {
+		if _, err := flushBatch(ipcWriter, rb, w, batchRows); err != nil && run.err == nil {
 			run.setError(&dbdriver.NormalizedError{Message: err.Error(), Source: "ghost"})
 		}
 	}
 }
 
-func flushBatch(ipcWriter *ipc.Writer, rb *RecordBuilder, w http.ResponseWriter) error {
+// flushBatch finalizes the in-progress record batch, writes it to the IPC
+// stream, flushes it to the client, and returns the target row count for the
+// next batch (recomputed from the batch just written).
+func flushBatch(ipcWriter *ipc.Writer, rb *RecordBuilder, w http.ResponseWriter, oldRowCount int64) (int64, error) {
 	batch := rb.NewRecordBatch()
 	defer batch.Release()
+	newRowCount := newRecordRowCount(batch, oldRowCount)
 	if err := ipcWriter.Write(batch); err != nil {
-		return err
+		return oldRowCount, err
 	}
 	flushWriter(w)
-	return nil
+	return newRowCount, nil
+}
+
+const (
+	// initialRecordRowCount is the number of rows in the first record batch.
+	// Kept small so the user sees the first rows quickly.
+	initialRecordRowCount = 100
+
+	// maxRecordRowCount caps the number of rows in any record batch.
+	maxRecordRowCount = 10000
+
+	// minRecordRowCount is the floor for the number of rows in a record batch.
+	minRecordRowCount = 5
+
+	// targetRecordBytes is the target serialized size of a record batch. Any
+	// given batch can overshoot or undershoot; the next batch's row count is
+	// adjusted to home in on this target.
+	targetRecordBytes = 5 * 1024 * 1024 // 5 MiB
+)
+
+// newRecordRowCount computes the ideal number of rows for the next record
+// batch from the average bytes-per-row of the last batch, clamped to sane
+// bounds. This adaptive sizing keeps memory spikes small and
+// time-to-first-byte fast regardless of row width.
+func newRecordRowCount(batch arrow.RecordBatch, oldRowCount int64) int64 {
+	recordBytes := recordSizeBytes(batch)
+	if recordBytes == 0 || oldRowCount == 0 {
+		return oldRowCount
+	}
+	bytesPerRow := recordBytes / uint64(oldRowCount)
+	if bytesPerRow == 0 {
+		bytesPerRow = 1
+	}
+	newRowCount := int64(targetRecordBytes / bytesPerRow)
+
+	// Clamp between the min and max, and limit sudden growth to 2x the
+	// previous count (in case the last batch was not a representative sample).
+	newRowCount = min(newRowCount, oldRowCount*2, maxRecordRowCount)
+	newRowCount = max(newRowCount, minRecordRowCount)
+	return newRowCount
+}
+
+func recordSizeBytes(batch arrow.RecordBatch) uint64 {
+	var size uint64
+	for _, col := range batch.Columns() {
+		size += col.Data().SizeInBytes()
+	}
+	return size
 }
diff --git a/internal/serve/arrow_results_test.go b/internal/serve/arrow_results_test.go
new file mode 100644
index 0000000..1b952b7
--- /dev/null
+++ b/internal/serve/arrow_results_test.go
@@ -0,0 +1,71 @@
+package serve
+
+import (
+	"testing"
+
+	"github.com/timescale/ghost/internal/serve/dbdriver"
+	"github.com/timescale/ghost/internal/serve/dbtypes"
+)
+
+// buildBatch appends n single-column string rows and returns the finalized
+// record batch so its serialized size can be measured.
+func buildBatch(t *testing.T, n int, value string) (int64, func()) {
+	t.Helper()
+	cols := dbdriver.Columns{{Name: "n", ScanType: dbtypes.StringType}}
+	rb, err := NewRecordBuilder(cols)
+	if err != nil {
+		t.Fatalf("NewRecordBuilder: %v", err)
+	}
+	for i := 0; i < n; i++ {
+		if err := rb.AppendRow([]any{value}); err != nil {
+			t.Fatalf("AppendRow: %v", err)
+		}
+	}
+	batch := rb.NewRecordBatch()
+	newCount := newRecordRowCount(batch, int64(n))
+	batch.Release()
+	return newCount, rb.Release
+}
+
+func TestNewRecordRowCount(t *testing.T) {
+	t.Run("small narrow rows grow toward the max", func(t *testing.T) {
+		// 100 tiny rows are far under the 5 MiB target, so the next batch
+		// should grow, but never more than 2x the previous count.
+		got, release := buildBatch(t, 100, "x")
+		defer release()
+		if got > 200 {
+			t.Errorf("row count = %d, want <= 200 (2x growth cap)", got)
+		}
+		if got < 100 {
+			t.Errorf("row count = %d, want >= 100 (narrow rows should not shrink)", got)
+		}
+	})
+
+	t.Run("never drops below the floor", func(t *testing.T) {
+		// A single huge row pushes bytes-per-row way over target; the next
+		// count is clamped to the minimum rather than going to zero.
+		huge := make([]byte, targetRecordBytes*2)
+		for i := range huge {
+			huge[i] = 'a'
+		}
+		got, release := buildBatch(t, 1, string(huge))
+		defer release()
+		if got != minRecordRowCount {
+			t.Errorf("row count = %d, want %d (min floor)", got, minRecordRowCount)
+		}
+	})
+
+	t.Run("zero previous count is a no-op", func(t *testing.T) {
+		cols := dbdriver.Columns{{Name: "n", ScanType: dbtypes.StringType}}
+		rb, err := NewRecordBuilder(cols)
+		if err != nil {
+			t.Fatalf("NewRecordBuilder: %v", err)
+		}
+		defer rb.Release()
+		batch := rb.NewRecordBatch()
+		defer batch.Release()
+		if got := newRecordRowCount(batch, 0); got != 0 {
+			t.Errorf("row count = %d, want 0", got)
+		}
+	})
+}
diff --git a/internal/serve/cancel.go b/internal/serve/cancel.go
index e6461d0..39a068e 100644
--- a/internal/serve/cancel.go
+++ b/internal/serve/cancel.go
@@ -14,7 +14,7 @@ import (
 func (s *Server) handleCancelRun(w http.ResponseWriter, r *http.Request) {
 	var req cancelQueryRequest
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
-		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		writeJSONError(w, http.StatusBadRequest, "invalid request body: "+err.Error())
 		return
 	}
 	run := s.runs.get(req.RunID)
diff --git a/internal/serve/dbdriver/api.go b/internal/serve/dbdriver/api.go
index 659037e..77b2293 100644
--- a/internal/serve/dbdriver/api.go
+++ b/internal/serve/dbdriver/api.go
@@ -1,11 +1,10 @@
 // Package dbdriver wraps database/sql + pgx to give us OID-aware column
 // scan-type inference, server-side query cancellation, and a Postgres error
-// normalizer suitable for projecting into the wire format the
-// popsql-query-widget expects.
+// normalizer suitable for projecting into the wire format the query widget
+// expects.
 //
-// This is a trimmed-down port of github.com/timescale/popsql-query's
-// internal/driver package — Postgres only, no SSH tunneling, no multi-driver
-// adapter registry, and no logging side-effects.
+// It is Postgres-only: no SSH tunneling, no multi-driver adapter registry, and
+// no logging side-effects (callers log Close errors etc.).
 package dbdriver
 
 import (
@@ -13,19 +12,8 @@ import (
 	"reflect"
 )
 
-// ColumnCase controls how column names are presented to the widget. Today we
-// always emit them as-is.
-type ColumnCase string
-
-const (
-	ColumnCaseDefault ColumnCase = ""
-	ColumnCaseLower   ColumnCase = "lower"
-	ColumnCaseUpper   ColumnCase = "upper"
-)
-
 // Column carries column metadata to the widget. JSON shape matches the
-// "Column" type defined by @popsql/types and consumed by
-// popsql-query-widget's TimescaleQueryClient.
+// "Column" type the query widget's client consumes.
 type Column struct {
 	Name      string       `json:"name"`
 	Type      string       `json:"type,omitempty"`
@@ -37,14 +25,8 @@ type Column struct {
 	ScanType  reflect.Type `json:"-"`
 }
 
-// Metadata is reserved for future use; popsql-query's Metadata is only
-// populated by BigQuery's bytes-processed counter.
-type Metadata struct {
-	BytesProcessed int64 `json:"bytesProcessed"`
-}
-
 // NormalizedError is the canonical error shape consumed by the widget. The
-// JSON shape mirrors @popsql/types' ApiFailedResult error.
+// JSON shape mirrors the widget client's ApiFailedResult error.
 type NormalizedError struct {
 	Code     string `json:"code,omitempty"`
 	Column   int32  `json:"column,omitempty"`
@@ -64,9 +46,9 @@ type NormalizedError struct {
 
 func (e *NormalizedError) Error() string { return e.Message }
 
-// ErrMultiStatement is returned when the user attempts to run multiple
-// statements in a single query. Multi-statement support requires either an
-// extended-protocol round trip per statement or pgx's "simple protocol" mode,
-// which interpolates parameters client-side. For now we follow popsql-query's
-// posture and reject the case.
+// ErrMultiStatement is returned when multiple statements are sent in a single
+// prepared (extended-protocol) call, which Postgres rejects. Multi-statement
+// editor text is handled by running the widget-supplied statements one at a
+// time (see streamQuery), so this only fires if a single statement itself
+// contains multiple commands.
 var ErrMultiStatement = errors.New("cannot run multiple statements in a single query")
diff --git a/internal/serve/dbdriver/cancel.go b/internal/serve/dbdriver/cancel.go
index 6818d01..559a715 100644
--- a/internal/serve/dbdriver/cancel.go
+++ b/internal/serve/dbdriver/cancel.go
@@ -15,9 +15,12 @@ type canceler func(ctx context.Context) error
 // into the returned context as a fallback. The returned CancelFunc must be
 // called when the query is finished to release the watcher goroutine.
 //
-// The reason for the not-a-child context is so that pgx does not abort the
-// query mid-flight on its own — we want a graceful cancel through Postgres,
-// so we can still surface a useful error to the client.
+// The query context is deliberately not a child of parent because pgx reacts
+// to context cancellation by closing the underlying database connection, which
+// tears down the session (TEMP tables, SET state, in-progress transactions).
+// By intercepting the cancellation ourselves and issuing a normal
+// pg_cancel_backend() over a side channel instead, we cancel just the running
+// query while keeping the connection alive for subsequent queries.
 func cancelContext(parent context.Context, fn canceler) (context.Context, context.CancelFunc) {
 	newCtx, cancel := context.WithCancelCause(context.Background())
 
diff --git a/internal/serve/dbdriver/driver.go b/internal/serve/dbdriver/driver.go
index 8e2bbd7..502d7c4 100644
--- a/internal/serve/dbdriver/driver.go
+++ b/internal/serve/dbdriver/driver.go
@@ -27,7 +27,7 @@ type Driver interface {
 
 	// Query issues a SQL statement and returns Rows. The context returned by
 	// Context must be the one passed in.
-	Query(ctx context.Context, args QueryArgs) (Rows, error)
+	Query(ctx context.Context, query string) (Rows, error)
 
 	// NormalizeError adapts a database/sql or driver-specific error to the
 	// wire NormalizedError shape expected by the widget.
@@ -36,12 +36,6 @@ type Driver interface {
 	Close() error
 }
 
-// QueryArgs is the input to Driver.Query.
-type QueryArgs struct {
-	Query      string
-	ColumnCase ColumnCase
-}
-
 // baseDriver is the standard implementation, shared by every concrete driver.
 // Driver-specific behavior (e.g. Postgres OID overrides, cancellation via
 // pgconn.CancelRequest) is layered on top by embedding this type.
@@ -63,18 +57,17 @@ func (b *baseDriver) Context(ctx context.Context) (context.Context, context.Canc
 	return ctx, func() {}
 }
 
-func (b *baseDriver) Query(ctx context.Context, args QueryArgs) (Rows, error) {
-	return b.query(ctx, args, b.scanType)
+func (b *baseDriver) Query(ctx context.Context, query string) (Rows, error) {
+	return b.query(ctx, query, b.scanType)
 }
 
-func (b *baseDriver) query(ctx context.Context, args QueryArgs, scanTypeFn scanTypeFn) (*baseRows, error) {
-	rows, err := b.conn.QueryContext(ctx, args.Query)
+func (b *baseDriver) query(ctx context.Context, query string, scanTypeFn scanTypeFn) (*baseRows, error) {
+	rows, err := b.conn.QueryContext(ctx, query)
 	if err != nil {
 		return nil, err
 	}
 	return &baseRows{
 		Rows:       rows,
-		columnCase: args.ColumnCase,
 		scanTypeFn: scanTypeFn,
 	}, nil
 }
diff --git a/internal/serve/dbdriver/postgres.go b/internal/serve/dbdriver/postgres.go
index 0ecc91f..77a3ceb 100644
--- a/internal/serve/dbdriver/postgres.go
+++ b/internal/serve/dbdriver/postgres.go
@@ -32,14 +32,12 @@ func OpenPostgresDSN(ctx context.Context, dsn string) (Driver, error) {
 }
 
 func openPostgresConfig(ctx context.Context, pgxCfg *pgx.ConnConfig) (d Driver, err error) {
-	// SimpleProtocol lets users send arbitrary text (multi-statement SQL,
-	// comments, trailing semicolons) the same way `ghost sql` does. The
-	// alternative extended-protocol modes need a single, parseable
-	// statement per call, which is a poor fit for an interactive editor.
-	pgxCfg.DefaultQueryExecMode = pgx.QueryExecModeSimpleProtocol
-	if pgxCfg.RuntimeParams == nil {
-		pgxCfg.RuntimeParams = map[string]string{}
-	}
+	// Use pgx's default exec mode (extended protocol with a prepared-statement
+	// cache). The widget splits multi-statement editor text into individual
+	// statements for us, which we run one at a time, so we don't need the
+	// simple protocol's multi-command support — and the extended protocol
+	// avoids the simple protocol's downsides (client-side parameter
+	// interpolation, no prepared-statement caching, weaker type handling).
 	pgxCfg.RuntimeParams["application_name"] = ApplicationName
 
 	tracer := &postgresQueryTracer{}
@@ -101,8 +99,8 @@ func (d *postgresDriver) Context(ctx context.Context) (context.Context, context.
 	})
 }
 
-func (d *postgresDriver) Query(ctx context.Context, args QueryArgs) (Rows, error) {
-	baseRows, err := d.query(ctx, args, d.scanType)
+func (d *postgresDriver) Query(ctx context.Context, query string) (Rows, error) {
+	baseRows, err := d.query(ctx, query, d.scanType)
 	if err != nil {
 		return nil, err
 	}
diff --git a/internal/serve/dbdriver/rows.go b/internal/serve/dbdriver/rows.go
index 74d262a..38e9137 100644
--- a/internal/serve/dbdriver/rows.go
+++ b/internal/serve/dbdriver/rows.go
@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"reflect"
 	"strings"
-	"unicode"
 
 	"github.com/timescale/ghost/internal/serve/dbtypes"
 )
@@ -20,7 +19,6 @@ type Rows interface {
 	Close() error
 
 	Columns() (Columns, error)
-	Metadata(ctx context.Context) (*Metadata, error)
 	RowsAffected(ctx context.Context) (*int64, error)
 }
 
@@ -62,7 +60,6 @@ type scanTypeFn func(columnType *sql.ColumnType) reflect.Type
 
 type baseRows struct {
 	*sql.Rows
-	columnCase ColumnCase
 	scanTypeFn scanTypeFn
 }
 
@@ -93,7 +90,7 @@ func (r *baseRows) Columns() (Columns, error) {
 func (r *baseRows) buildColumn(deduper deduper, ct *sql.ColumnType) Column {
 	scanType := r.scanTypeFn(ct)
 	column := Column{
-		Name:     deduper.dedupe(ct, r.columnCase),
+		Name:     deduper.dedupe(ct),
 		Type:     ct.DatabaseTypeName(),
 		Object:   scanType == dbtypes.JSONPtrType,
 		Numeric:  scanType == dbtypes.NumericPtrType,
@@ -109,7 +106,6 @@ func (r *baseRows) buildColumn(deduper deduper, ct *sql.ColumnType) Column {
 	return column
 }
 
-func (r *baseRows) Metadata(ctx context.Context) (*Metadata, error)  { return nil, nil }
 func (r *baseRows) RowsAffected(ctx context.Context) (*int64, error) { return nil, nil }
 
 type deduper map[string]int
@@ -124,36 +120,16 @@ func newDeduper(columnTypes []*sql.ColumnType) deduper {
 
 func (d deduper) columnKey(name string) string { return strings.ToLower(name) }
 
-func (d deduper) columnName(ct *sql.ColumnType, columnCase ColumnCase) string {
+func (d deduper) columnName(ct *sql.ColumnType) string {
 	name := ct.Name()
 	if name == "" {
 		name = "column"
 	}
-	switch columnCase {
-	case ColumnCaseDefault:
-		return name
-	case ColumnCaseLower:
-		if d.mixedCase(name) {
-			return name
-		}
-		return strings.ToLower(name)
-	case ColumnCaseUpper:
-		if d.mixedCase(name) {
-			return name
-		}
-		return strings.ToUpper(name)
-	default:
-		panic(fmt.Errorf("invalid column case: %s", columnCase))
-	}
-}
-
-func (d deduper) mixedCase(name string) bool {
-	return strings.ContainsFunc(name, unicode.IsLower) &&
-		strings.ContainsFunc(name, unicode.IsUpper)
+	return name
 }
 
-func (d deduper) dedupe(ct *sql.ColumnType, columnCase ColumnCase) string {
-	name := d.columnName(ct, columnCase)
+func (d deduper) dedupe(ct *sql.ColumnType) string {
+	name := d.columnName(ct)
 	key := d.columnKey(name)
 
 	count := d[key]
diff --git a/internal/serve/dbtypes/date.go b/internal/serve/dbtypes/date.go
index b10c6c1..ae8b816 100644
--- a/internal/serve/dbtypes/date.go
+++ b/internal/serve/dbtypes/date.go
@@ -85,10 +85,16 @@ func (t *Timestamp) Scan(src any) error {
 	return nil
 }
 
-// getTimeZoneOffsetLayout returns the timezone-offset portion of the
-// timestamp layout. If the offset has a non-zero minutes portion, both hours
-// and minutes are included (matching Postgres default behavior); otherwise
-// just the hours portion is included.
+// getTimeZoneOffsetLayout returns the hour(:minute) portion of Go's numeric
+// timezone-offset layout token. If the offset has a non-zero minutes portion,
+// both hours and minutes are included (matching Postgres default behavior);
+// otherwise just the hours portion is included.
+//
+// The callers prepend "-" to form the full token (e.g. "-07" or "-07:00").
+// That leading "-" is NOT a literal dash: in Go's reference-time layout it is
+// the sign placeholder, which time.Format substitutes with the actual sign of
+// the offset. So "-07" renders as "+02" or "-05" as appropriate -- the values
+// are correct, not double-signed.
 func getTimeZoneOffsetLayout(t time.Time) string {
 	_, offset := t.Zone()
 	minutes := (offset % 3600) / 60
diff --git a/internal/serve/dbtypes/types.go b/internal/serve/dbtypes/types.go
index 9ba4c6c..c06d56b 100644
--- a/internal/serve/dbtypes/types.go
+++ b/internal/serve/dbtypes/types.go
@@ -2,9 +2,9 @@
 // precision and special values (NaN, +/-Infinity, untyped JSON, hex-encoded
 // bytea, plain DATE/TIMESTAMP strings) when reading rows out of database/sql.
 //
-// Ported from github.com/timescale/popsql-query/internal/types so the Apache
-// Arrow encoding in this package matches the wire contract the
-// popsql-query-widget expects from the savannah gateway.
+// These types match the wire contract the query widget expects, so the Apache
+// Arrow encoding preserves database-side precision and special values when
+// rows are streamed to the browser.
 package dbtypes
 
 import (
diff --git a/internal/serve/execute.go b/internal/serve/execute.go
index a75a917..aa46191 100644
--- a/internal/serve/execute.go
+++ b/internal/serve/execute.go
@@ -17,7 +17,7 @@ import (
 func (s *Server) handleExecuteQuery(w http.ResponseWriter, r *http.Request) {
 	var req executeQueryRequest
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
-		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		writeJSONError(w, http.StatusBadRequest, "invalid request body: "+err.Error())
 		return
 	}
 	client, projectID, err := s.loadClient(r.Context())
@@ -39,7 +39,11 @@ func (s *Server) handleExecuteQuery(w http.ResponseWriter, r *http.Request) {
 		}
 		return
 	}
-	defer driver.Close()
+	defer func() {
+		if err := driver.Close(); err != nil {
+			s.logger.Warn("error closing database connection", "err", err)
+		}
+	}()
 
 	s.runQuery(w, r, req, driver)
 }
@@ -50,7 +54,7 @@ func (s *Server) handleExecuteQuery(w http.ResponseWriter, r *http.Request) {
 func (s *Server) handleExecuteSessionQuery(w http.ResponseWriter, r *http.Request) {
 	var req executeSessionQueryRequest
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
-		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		writeJSONError(w, http.StatusBadRequest, "invalid request body: "+err.Error())
 		return
 	}
 	_, projectID, err := s.loadClient(r.Context())
@@ -73,22 +77,19 @@ func (s *Server) handleExecuteSessionQuery(w http.ResponseWriter, r *http.Reques
 	s.runQuery(w, r, req.executeQueryRequest, session.driver)
 }
 
-// bufferedResultSet is one result set materialized in memory: its column
-// descriptors plus every scanned row in order.
-type bufferedResultSet struct {
-	columns      dbdriver.Columns
-	rows         [][]any
-	rowsAffected *int64
-}
-
 // runQuery is the shared body of handleExecuteQuery / handleExecuteSessionQuery.
 //
-// Multi-statement behavior: the widget's worker splits the editor text into a
-// statements array which we join with `; ` and run via pgx's simple text
-// protocol. PG returns one result set per statement. We buffer all of them
-// and surface the last result set that has columns; if none have columns
-// (e.g. only DDL/DML), we surface the last result set so its rowsAffected
-// still shows.
+// The query executes in a dedicated goroutine (streamQuery) that streams rows
+// over run.rows. This handler writes the columns NDJSON line as soon as the
+// columns are known, which prompts the widget to POST /api/arrowResults; that
+// handler drains run.rows into an Arrow IPC stream with backpressure. Rows are
+// never collected in full — they flow from the database straight to the wire.
+//
+// Multi-statement behavior mirrors the upstream query service: the widget's worker splits
+// the editor text into a statements array; we run every statement except the
+// last against the same connection (so TEMP tables and other session state
+// persist), discarding their results, then stream the final statement's result
+// set. This is the result the widget displays.
 func (s *Server) runQuery(w http.ResponseWriter, r *http.Request, req executeQueryRequest, driver dbdriver.Driver) {
 	driverCtx, driverCleanup := driver.Context(r.Context())
 	defer driverCleanup()
@@ -96,54 +97,59 @@ func (s *Server) runQuery(w http.ResponseWriter, r *http.Request, req executeQue
 	queryCtx, cancelQuery := context.WithCancel(driverCtx)
 	defer cancelQuery()
 
+	statements := req.Statements
+	if len(statements) == 0 && req.Query != "" {
+		statements = []string{req.Query}
+	}
+
 	run := &Run{
-		id:          req.RunID,
-		projectID:   req.ProjectID,
-		serviceID:   req.ServiceID,
-		startedAt:   time.Now(),
-		cancelQuery: cancelQuery,
-		ready:       make(chan struct{}),
-		done:        make(chan struct{}),
+		id:                 req.RunID,
+		projectID:          req.ProjectID,
+		serviceID:          req.ServiceID,
+		startedAt:          time.Now(),
+		rows:               make(chan []any, rowChanBuffer),
+		executedStatements: int64(len(statements)),
+		cancelQuery:        cancelQuery,
+		ready:              make(chan struct{}),
+		done:               make(chan struct{}),
 	}
 	s.runs.add(run)
 	defer s.runs.delete(req.RunID)
 
-	statements := req.Statements
-	if len(statements) == 0 && req.Query != "" {
-		statements = []string{req.Query}
-	}
+	go s.streamQuery(queryCtx, run, driver, statements)
 
-	results, bufErr := bufferStatements(queryCtx, driver, statements)
-	if bufErr != nil {
-		writeErrorTerminator(w, req.RunID, driver.NormalizeError(queryCtx, bufErr))
+	// Wait for the query goroutine to produce columns (or fail before it got
+	// that far), or for the client to disconnect.
+	select {
+	case <-run.ready:
+	case <-r.Context().Done():
+		cancelQuery()
 		return
 	}
-	chosen := pickResultSetToSurface(results)
-	if chosen == nil {
-		// Should not happen: bufferStatements always emits at least one entry
-		// on success. Defensively surface an empty result.
-		chosen = &bufferedResultSet{}
-	}
-
-	run.columns = chosen.columns
-	run.bufferedRows = chosen.rows
-	run.rowCount = int64(len(chosen.rows))
-	run.rowsAffected = chosen.rowsAffected
-	run.executedStatements = int64(len(results))
-	close(run.ready)
 
 	w.Header().Set("Content-Type", "application/x-ndjson")
 	w.Header().Set("Cache-Control", "no-store")
-
 	enc := json.NewEncoder(w)
-	if err := enc.Encode(columnsResult{RunID: req.RunID, Columns: chosen.columns}); err != nil {
+
+	// If the query failed before producing a result set, the widget never sees
+	// a columns line and so never fetches arrow results. Emit the error
+	// terminator directly.
+	if run.err != nil && len(run.columns) == 0 {
+		_ = enc.Encode(errorResult{RunID: req.RunID, Success: false, Error: run.err})
+		flushWriter(w)
+		run.closeDone()
+		return
+	}
+
+	if err := enc.Encode(columnsResult{RunID: req.RunID, Columns: run.columns}); err != nil {
 		// Client disconnected before columns reached the wire.
 		cancelQuery()
 		return
 	}
 	flushWriter(w)
 
-	// Wait for arrowResults to finish, or for the client to disconnect.
+	// Wait for arrowResults to finish streaming, or for the client to
+	// disconnect. arrowResults closes done once it has drained run.rows.
 	select {
 	case <-run.done:
 	case <-r.Context().Done():
@@ -170,73 +176,112 @@ func (s *Server) runQuery(w http.ResponseWriter, r *http.Request, req executeQue
 	flushWriter(w)
 }
 
-// bufferStatements runs each statement in order against the same driver
-// connection (so TEMP tables and other session state from earlier
-// statements are visible to later ones) and buffers the rows from each
-// result set into memory.
+// streamQuery runs the run's statements against the driver connection and
+// streams the final statement's rows over run.rows. It mirrors the upstream
+// query session: run prior statements fire-and-forget, then stream the last.
+//
+// Iterating per-statement (rather than relying on sql.Rows.NextResultSet) is
+// necessary because pgx's stdlib wrapper only surfaces the first result set of
+// a multi-statement Query call. The widget already does the SQL-aware
+// statement split for us, so we leverage that here.
 //
-// Iterating per-statement (rather than relying on sql.Rows.NextResultSet)
-// is necessary because pgx's stdlib wrapper only surfaces the first
-// result set of a multi-statement Query call. The widget already does the
-// SQL-aware statement split for us, so we leverage that here.
-func bufferStatements(ctx context.Context, driver dbdriver.Driver, statements []string) ([]bufferedResultSet, error) {
-	out := make([]bufferedResultSet, 0, len(statements))
-	for _, stmt := range statements {
-		rs, err := bufferOneStatement(ctx, driver, stmt)
-		if err != nil {
-			return out, err
+// On any error it records a NormalizedError on the run; columns/rows produced
+// so far are still streamed, and executeQuery emits the error terminator once
+// arrowResults finishes. run.rows is always closed on return so arrowResults
+// unblocks.
+func (s *Server) streamQuery(ctx context.Context, run *Run, driver dbdriver.Driver, statements []string) {
+	var rowCount int64
+	readyOnce := func() {
+		select {
+		case <-run.ready:
+		default:
+			close(run.ready)
 		}
-		out = append(out, rs)
 	}
-	return out, nil
-}
+	defer readyOnce()
+	defer close(run.rows)
+
+	fail := func(err error) {
+		run.rowCount = rowCount
+		run.setError(driver.NormalizeError(ctx, err))
+	}
+
+	// Bail early if the context was already canceled, to avoid racing the
+	// server-side cancel against the start of query execution.
+	if err := ctx.Err(); err != nil {
+		fail(err)
+		return
+	}
 
-func bufferOneStatement(ctx context.Context, driver dbdriver.Driver, stmt string) (bufferedResultSet, error) {
-	rows, err := driver.Query(ctx, dbdriver.QueryArgs{Query: stmt})
+	// Run every statement except the last fire-and-forget.
+	for i := 0; i+1 < len(statements); i++ {
+		if err := runStatement(ctx, driver, statements[i]); err != nil {
+			fail(err)
+			return
+		}
+	}
+
+	final := ""
+	if len(statements) > 0 {
+		final = statements[len(statements)-1]
+	}
+
+	rows, err := driver.Query(ctx, final)
 	if err != nil {
-		return bufferedResultSet{}, err
+		fail(err)
+		return
 	}
-	defer rows.Close()
+	defer func() {
+		if err := rows.Close(); err != nil {
+			s.logger.Debug("error closing rows", "err", err)
+		}
+	}()
 
-	cols, err := rows.Columns()
+	columns, err := rows.Columns()
 	if err != nil {
-		return bufferedResultSet{}, err
+		fail(err)
+		return
 	}
+	run.columns = columns
+	readyOnce()
 
-	buf := bufferedResultSet{columns: cols}
-	targets := cols.ScanTargets()
+	targets := columns.ScanTargets()
 	for rows.Next() {
-		if err := ctx.Err(); err != nil {
-			return buf, err
-		}
 		if err := rows.Scan(targets...); err != nil {
-			return buf, err
+			fail(err)
+			return
+		}
+		select {
+		case run.rows <- targets.Values():
+			rowCount++
+		case <-ctx.Done():
+			fail(ctx.Err())
+			return
 		}
-		buf.rows = append(buf.rows, targets.Values())
 	}
 	if err := rows.Err(); err != nil {
-		return buf, err
+		fail(err)
+		return
 	}
+	if err := rows.Close(); err != nil {
+		fail(err)
+		return
+	}
+
+	run.rowCount = rowCount
 	if ra, _ := rows.RowsAffected(ctx); ra != nil {
-		buf.rowsAffected = ra
+		run.rowsAffected = ra
 	}
-	return buf, nil
 }
 
-// pickResultSetToSurface picks the result set we display to the widget,
-// matching the rule the user asked for: prefer the last result set that
-// returned columns; fall back to the last result set if none have columns;
-// nil if the slice is empty.
-func pickResultSetToSurface(results []bufferedResultSet) *bufferedResultSet {
-	if len(results) == 0 {
-		return nil
-	}
-	for i := len(results) - 1; i >= 0; i-- {
-		if len(results[i].columns) > 0 {
-			return &results[i]
-		}
+// runStatement runs a single statement to completion and discards its result
+// set. Used for every statement except the last in a multi-statement run.
+func runStatement(ctx context.Context, driver dbdriver.Driver, stmt string) error {
+	rows, err := driver.Query(ctx, stmt)
+	if err != nil {
+		return err
 	}
-	return &results[len(results)-1]
+	return rows.Close()
 }
 
 // checkProject rejects requests for a different project than the one the CLI
diff --git a/internal/serve/execute_test.go b/internal/serve/execute_test.go
index 4006661..7d642c5 100644
--- a/internal/serve/execute_test.go
+++ b/internal/serve/execute_test.go
@@ -1,60 +1,228 @@
 package serve
 
 import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"log/slog"
+	"net/http/httptest"
+	"reflect"
+	"strings"
 	"testing"
+	"time"
+
+	"github.com/apache/arrow-go/v18/arrow/ipc"
 
 	"github.com/timescale/ghost/internal/serve/dbdriver"
+	"github.com/timescale/ghost/internal/serve/dbtypes"
 )
 
-func TestPickResultSetToSurface(t *testing.T) {
-	one := dbdriver.Column{Name: "n"}
-	withCols := bufferedResultSet{columns: dbdriver.Columns{one}, rows: [][]any{{1}}}
-	emptyCols := bufferedResultSet{columns: nil}
-	otherCols := bufferedResultSet{columns: dbdriver.Columns{{Name: "m"}}, rows: [][]any{{2}}}
-
-	tests := []struct {
-		name string
-		in   []bufferedResultSet
-		want *bufferedResultSet
-	}{
-		{
-			name: "empty input",
-			in:   nil,
-			want: nil,
-		},
-		{
-			name: "single result with columns",
-			in:   []bufferedResultSet{withCols},
-			want: &withCols,
-		},
-		{
-			name: "last result with columns wins",
-			in:   []bufferedResultSet{withCols, otherCols},
-			want: &otherCols,
-		},
-		{
-			name: "last column-bearing result wins even when later results are column-less",
-			in:   []bufferedResultSet{withCols, emptyCols},
-			want: &withCols,
-		},
-		{
-			name: "no columns anywhere falls back to last result",
-			in:   []bufferedResultSet{emptyCols, emptyCols, emptyCols},
-			want: &emptyCols,
-		},
-	}
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			got := pickResultSetToSurface(tc.in)
-			if (got == nil) != (tc.want == nil) {
-				t.Fatalf("got=%v want=%v", got, tc.want)
-			}
-			if got == nil {
-				return
-			}
-			if len(got.columns) != len(tc.want.columns) {
-				t.Errorf("columns len = %d, want %d", len(got.columns), len(tc.want.columns))
-			}
-		})
+// fakeDriver is an in-memory dbdriver.Driver that returns a fixed result set
+// for every Query. It records the statements it was asked to run so tests can
+// assert multi-statement behavior.
+type fakeDriver struct {
+	cols    dbdriver.Columns
+	rows    [][]any
+	queries []string
+}
+
+func (d *fakeDriver) Ping(context.Context) error  { return nil }
+func (d *fakeDriver) PingInterval() time.Duration { return 0 }
+func (d *fakeDriver) Close() error                { return nil }
+func (d *fakeDriver) Context(ctx context.Context) (context.Context, context.CancelFunc) {
+	return context.WithCancel(ctx)
+}
+
+func (d *fakeDriver) Query(_ context.Context, query string) (dbdriver.Rows, error) {
+	d.queries = append(d.queries, query)
+	return &fakeRows{cols: d.cols, rows: d.rows, idx: -1}, nil
+}
+
+func (d *fakeDriver) NormalizeError(_ context.Context, err error) *dbdriver.NormalizedError {
+	return &dbdriver.NormalizedError{Message: err.Error(), Source: "fake"}
+}
+
+type fakeRows struct {
+	cols dbdriver.Columns
+	rows [][]any
+	idx  int
+}
+
+func (r *fakeRows) Next() bool { r.idx++; return r.idx < len(r.rows) }
+func (r *fakeRows) Scan(dest ...any) error {
+	row := r.rows[r.idx]
+	for i := range dest {
+		reflect.ValueOf(dest[i]).Elem().Set(reflect.ValueOf(row[i]))
+	}
+	return nil
+}
+func (r *fakeRows) Err() error                                   { return nil }
+func (r *fakeRows) Close() error                                 { return nil }
+func (r *fakeRows) Columns() (dbdriver.Columns, error)           { return r.cols, nil }
+func (r *fakeRows) RowsAffected(context.Context) (*int64, error) { return nil, nil }
+
+func newTestServer() *Server {
+	return &Server{
+		runs:     newRunStore(),
+		sessions: newSessionStore(),
+		logger:   slog.New(slog.DiscardHandler),
+	}
+}
+
+// runStreaming drives runQuery + handleArrowResults concurrently the way the
+// widget does (executeQuery first, then arrowResults once the run is
+// registered) and returns the decoded NDJSON lines plus the streamed arrow row
+// count.
+func runStreaming(t *testing.T, s *Server, req executeQueryRequest, driver dbdriver.Driver) (ndjson []map[string]any, arrowRows int64) {
+	t.Helper()
+
+	execW := httptest.NewRecorder()
+	execR := httptest.NewRequest("POST", "/api/executeQuery", nil)
+	done := make(chan struct{})
+	go func() {
+		s.runQuery(execW, execR, req, driver)
+		close(done)
+	}()
+
+	// Wait for the run to be registered and its columns to be ready.
+	var run *Run
+	deadline := time.Now().Add(5 * time.Second)
+	for time.Now().Before(deadline) {
+		if run = s.runs.get(req.RunID); run != nil {
+			break
+		}
+		time.Sleep(time.Millisecond)
+	}
+	if run == nil {
+		t.Fatal("run was never registered")
+	}
+
+	arrowW := httptest.NewRecorder()
+	arrowR := httptest.NewRequest("POST", "/api/arrowResults", strings.NewReader(`{"runId":"`+req.RunID+`"}`))
+	s.handleArrowResults(arrowW, arrowR)
+
+	select {
+	case <-done:
+	case <-time.After(5 * time.Second):
+		t.Fatal("runQuery did not return")
+	}
+
+	for _, line := range strings.Split(strings.TrimSpace(execW.Body.String()), "\n") {
+		if line == "" {
+			continue
+		}
+		var m map[string]any
+		if err := json.Unmarshal([]byte(line), &m); err != nil {
+			t.Fatalf("decoding NDJSON line %q: %v", line, err)
+		}
+		ndjson = append(ndjson, m)
+	}
+
+	if body := arrowW.Body.Bytes(); len(body) > 0 {
+		rdr, err := ipc.NewReader(bytes.NewReader(body))
+		if err != nil {
+			t.Fatalf("opening arrow stream: %v", err)
+		}
+		defer rdr.Release()
+		for rdr.Next() {
+			arrowRows += rdr.RecordBatch().NumRows()
+		}
+		if err := rdr.Err(); err != nil {
+			t.Fatalf("reading arrow stream: %v", err)
+		}
+	}
+	return ndjson, arrowRows
+}
+
+func stringColumns(names ...string) dbdriver.Columns {
+	cols := make(dbdriver.Columns, len(names))
+	for i, n := range names {
+		cols[i] = dbdriver.Column{Name: n, ScanType: dbtypes.StringType}
+	}
+	return cols
+}
+
+func TestRunQueryStreamsRows(t *testing.T) {
+	s := newTestServer()
+	driver := &fakeDriver{
+		cols: stringColumns("n"),
+		rows: [][]any{{"a"}, {"b"}, {"c"}},
+	}
+	req := executeQueryRequest{RunID: "run1", ProjectID: "p", ServiceID: "svc", Statements: []string{"SELECT n FROM t"}}
+
+	ndjson, arrowRows := runStreaming(t, s, req, driver)
+
+	if arrowRows != 3 {
+		t.Errorf("streamed arrow rows = %d, want 3", arrowRows)
+	}
+	if len(ndjson) != 2 {
+		t.Fatalf("NDJSON lines = %d, want 2 (columns, success): %v", len(ndjson), ndjson)
+	}
+	if _, ok := ndjson[0]["columns"]; !ok {
+		t.Errorf("first NDJSON line should carry columns, got %v", ndjson[0])
+	}
+	last := ndjson[len(ndjson)-1]
+	if last["success"] != true {
+		t.Errorf("last NDJSON line should be success, got %v", last)
+	}
+	if last["rowCount"].(float64) != 3 {
+		t.Errorf("rowCount = %v, want 3", last["rowCount"])
+	}
+	if s.runs.get("run1") != nil {
+		t.Error("run should be deleted after runQuery returns")
+	}
+}
+
+func TestRunQueryMultiStatementStreamsLast(t *testing.T) {
+	s := newTestServer()
+	driver := &fakeDriver{
+		cols: stringColumns("n"),
+		rows: [][]any{{"x"}, {"y"}},
+	}
+	req := executeQueryRequest{
+		RunID:      "run2",
+		ProjectID:  "p",
+		ServiceID:  "svc",
+		Statements: []string{"CREATE TEMP TABLE t (n text)", "INSERT INTO t VALUES ('x'),('y')", "SELECT n FROM t"},
+	}
+
+	ndjson, arrowRows := runStreaming(t, s, req, driver)
+
+	if len(driver.queries) != 3 {
+		t.Fatalf("driver ran %d statements, want 3: %v", len(driver.queries), driver.queries)
+	}
+	if arrowRows != 2 {
+		t.Errorf("streamed arrow rows = %d, want 2", arrowRows)
+	}
+	last := ndjson[len(ndjson)-1]
+	if last["executedStatements"].(float64) != 3 {
+		t.Errorf("executedStatements = %v, want 3", last["executedStatements"])
+	}
+}
+
+func TestArrowResultsRejectsConcurrentConsumers(t *testing.T) {
+	s := newTestServer()
+	run := &Run{
+		id:    "run3",
+		rows:  make(chan []any),
+		ready: make(chan struct{}),
+		done:  make(chan struct{}),
+	}
+	run.arrowStarted.Store(true) // simulate a consumer already streaming
+	s.runs.add(run)
+
+	w := httptest.NewRecorder()
+	r := httptest.NewRequest("POST", "/api/arrowResults", strings.NewReader(`{"runId":"run3"}`))
+	s.handleArrowResults(w, r)
+
+	if w.Code != 409 {
+		t.Errorf("status = %d, want 409 Conflict", w.Code)
+	}
+	var body jsonErrorBody
+	if err := json.Unmarshal(w.Body.Bytes(), &body); err != nil {
+		t.Fatalf("error body is not JSON: %v (%s)", err, w.Body.String())
+	}
+	if body.Error.Message == "" {
+		t.Error("error body should carry a message")
 	}
 }
diff --git a/internal/serve/httperr.go b/internal/serve/httperr.go
new file mode 100644
index 0000000..55df13c
--- /dev/null
+++ b/internal/serve/httperr.go
@@ -0,0 +1,31 @@
+package serve
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+// jsonErrorBody mirrors the ErrorResponse shape the hosted query service
+// returns. The widget's client runs every non-streaming response through
+// checkApiError, which parses `error.message` out of the JSON body; a plain
+// text body (e.g. from http.Error) would be discarded, losing the message.
+type jsonErrorBody struct {
+	Error   jsonErrorMessage `json:"error"`
+	Success bool             `json:"success"`
+}
+
+type jsonErrorMessage struct {
+	Message string `json:"message"`
+}
+
+// writeJSONError writes a structured JSON error body with the given HTTP
+// status, so the widget can surface the message to the user.
+func writeJSONError(w http.ResponseWriter, status int, message string) {
+	w.Header().Set("Content-Type", "application/json")
+	w.Header().Set("Cache-Control", "no-store")
+	w.WriteHeader(status)
+	_ = json.NewEncoder(w).Encode(jsonErrorBody{
+		Error:   jsonErrorMessage{Message: message},
+		Success: false,
+	})
+}
diff --git a/internal/serve/server.go b/internal/serve/server.go
index 32b0305..4cf28ed 100644
--- a/internal/serve/server.go
+++ b/internal/serve/server.go
@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"log/slog"
 	"net"
 	"net/http"
 	"strconv"
@@ -24,11 +25,17 @@ type Config struct {
 	// call App.Load on each request so OAuth tokens are refreshed and the user
 	// can log in/out in another terminal without restarting the server.
 	App *common.App
+	// Logger receives diagnostics from the long-running server (e.g. errors
+	// closing a database connection). Like `ghost mcp`, serve is a long-lived
+	// backend process, so structured logging to stderr is appropriate. If nil,
+	// logging is discarded.
+	Logger *slog.Logger
 }
 
 // Server wraps the HTTP server and exposes the resolved listen address.
 type Server struct {
 	cfg      Config
+	logger   *slog.Logger
 	srv      *http.Server
 	ln       net.Listener
 	addr     string
@@ -54,9 +61,15 @@ func New(cfg Config) (*Server, error) {
 		return nil, fmt.Errorf("listen on %s: %w", addr, err)
 	}
 
+	logger := cfg.Logger
+	if logger == nil {
+		logger = slog.New(slog.DiscardHandler)
+	}
+
 	configDir := cfg.App.GetConfig().ConfigDir
 	s := &Server{
 		cfg:      cfg,
+		logger:   logger,
 		ln:       ln,
 		addr:     ln.Addr().String(),
 		runs:     newRunStore(),
diff --git a/internal/serve/session.go b/internal/serve/session.go
index 2b58e54..d120f8e 100644
--- a/internal/serve/session.go
+++ b/internal/serve/session.go
@@ -17,7 +17,7 @@ import (
 func (s *Server) handleCreateSession(w http.ResponseWriter, r *http.Request) {
 	var req createSessionRequest
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
-		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		writeJSONError(w, http.StatusBadRequest, "invalid request body: "+err.Error())
 		return
 	}
 
@@ -64,6 +64,7 @@ func (s *Server) handleCreateSession(w http.ResponseWriter, r *http.Request) {
 		serviceID: req.ServiceID,
 		startedAt: time.Now(),
 		driver:    driver,
+		logger:    s.logger,
 		closed:    make(chan struct{}),
 	}
 	s.sessions.add(sess)
@@ -76,7 +77,7 @@ func (s *Server) handleCreateSession(w http.ResponseWriter, r *http.Request) {
 func (s *Server) handleCloseSession(w http.ResponseWriter, r *http.Request) {
 	var req sessionRefRequest
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
-		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		writeJSONError(w, http.StatusBadRequest, "invalid request body: "+err.Error())
 		return
 	}
 	sess := s.sessions.get(req.SessionID)
@@ -97,7 +98,7 @@ func (s *Server) handleCloseSession(w http.ResponseWriter, r *http.Request) {
 func (s *Server) handleSessionEvents(w http.ResponseWriter, r *http.Request) {
 	var req sessionRefRequest
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
-		http.Error(w, "invalid request body: "+err.Error(), http.StatusBadRequest)
+		writeJSONError(w, http.StatusBadRequest, "invalid request body: "+err.Error())
 		return
 	}
 
diff --git a/internal/serve/store.go b/internal/serve/store.go
index e60f957..be3808a 100644
--- a/internal/serve/store.go
+++ b/internal/serve/store.go
@@ -2,47 +2,69 @@ package serve
 
 import (
 	"context"
+	"log/slog"
 	"sync"
+	"sync/atomic"
 	"time"
 
 	"github.com/timescale/ghost/internal/serve/dbdriver"
 )
 
+// rowChanBuffer is the capacity of Run.rows. A small buffer smooths out
+// per-row scheduling jitter between the producer (the query goroutine) and
+// the consumer (the arrowResults handler) without letting memory usage grow
+// unbounded: once the buffer fills, the producer blocks on its next send,
+// which throttles how fast we read from the database. This backpressure is
+// what keeps memory flat for arbitrarily large result sets.
+const rowChanBuffer = 100
+
 // Run coordinates a single in-flight query between the executeQuery and
-// arrowResults handlers. executeQuery runs the query to completion (all
-// result sets buffered), populates the chosen result set's columns + rows,
-// signals ready, writes the columns NDJSON line, then blocks on done.
-// arrowResults waits for ready, walks bufferedRows into an Arrow IPC stream,
-// then closes done so executeQuery can emit the success/error terminator.
+// arrowResults handlers. The query runs in a dedicated goroutine that streams
+// scanned rows over the rows channel (see streamQuery). executeQuery waits for
+// ready (columns known), writes the columns NDJSON line, then blocks on done.
+// arrowResults waits for ready, ranges over rows building an Arrow IPC stream
+// with backpressure, then closes done so executeQuery can emit the
+// success/error terminator. Rows are never buffered in full — they flow from
+// the database straight to the wire.
 type Run struct {
 	id        string
 	projectID string
 	serviceID string
 	startedAt time.Time
 
-	// Populated by executeQuery before closing ready. These describe the
-	// single result set we surface to the widget (per the user-facing rule:
-	// last result set with columns, or the last result set if none had
-	// columns).
-	columns      dbdriver.Columns
-	bufferedRows [][]any
+	// columns is set by the query goroutine before it closes ready.
+	columns dbdriver.Columns
+
+	// rows streams scanned rows from the query goroutine to arrowResults. It
+	// is closed by the query goroutine once the result set is exhausted (or on
+	// error/cancellation). Backpressure on this channel bounds memory use.
+	rows chan []any
+
+	// rowCount and rowsAffected are set by the query goroutine before it
+	// closes rows; they are safe to read after done is closed.
 	rowCount     int64
 	rowsAffected *int64
 
-	// Number of result sets the database returned for this run — used by the
+	// Number of statements the database executed for this run — used by the
 	// UI to show "Executed N statements" when N > 1.
 	executedStatements int64
 
+	// arrowStarted guards against more than one arrowResults handler draining
+	// the rows channel. Only the first caller wins; concurrent/duplicate
+	// fetches are rejected (mirrors the upstream single-reader pipe design).
+	arrowStarted atomic.Bool
+
 	// cancelQuery aborts the in-flight query via pg_cancel_backend (wired
 	// through driver.Context's cancelContext). Used by /api/cancelRun and
-	// by client-disconnect detection in executeQuery.
+	// by client-disconnect detection in executeQuery / arrowResults.
 	cancelQuery context.CancelFunc
 
 	ready chan struct{}
 	done  chan struct{}
 
-	err     *dbdriver.NormalizedError
-	errOnce sync.Once
+	err      *dbdriver.NormalizedError
+	errOnce  sync.Once
+	doneOnce sync.Once
 }
 
 func (r *Run) setError(e *dbdriver.NormalizedError) {
@@ -50,11 +72,7 @@ func (r *Run) setError(e *dbdriver.NormalizedError) {
 }
 
 func (r *Run) closeDone() {
-	select {
-	case <-r.done:
-	default:
-		close(r.done)
-	}
+	r.doneOnce.Do(func() { close(r.done) })
 }
 
 // runStore holds all in-flight runs keyed by their widget-generated run id.
@@ -95,6 +113,7 @@ type Session struct {
 	startedAt time.Time
 
 	driver dbdriver.Driver
+	logger *slog.Logger
 
 	closed    chan struct{}
 	closeErr  *dbdriver.NormalizedError
@@ -106,7 +125,9 @@ func (s *Session) close(reason *dbdriver.NormalizedError) {
 		s.closeErr = reason
 		close(s.closed)
 		if s.driver != nil {
-			_ = s.driver.Close()
+			if err := s.driver.Close(); err != nil && s.logger != nil {
+				s.logger.Warn("error closing session database connection", "err", err)
+			}
 		}
 	})
 }
diff --git a/internal/serve/wire.go b/internal/serve/wire.go
index ad83de9..4314343 100644
--- a/internal/serve/wire.go
+++ b/internal/serve/wire.go
@@ -1,14 +1,12 @@
 package serve
 
 import (
-	"strings"
-
 	"github.com/timescale/ghost/internal/serve/dbdriver"
 )
 
-// Wire-format types matching what @popsql/query-client's TimescaleQueryClient
-// sends to and expects back from the savannah gateway. Source:
-// popsql/packages/popsql-query-client/src/{TimescaleQueryClient,client}.ts.
+// Wire-format types matching what the query widget's client sends to and
+// expects back from the hosted query service. These mirror the widget's
+// TimescaleQueryClient request/response shapes.
 
 // executeQueryRequest matches TimescaleExecuteQueryRequest. The widget
 // emits both a top-level `query` field (legacy / unused in practice) and a
@@ -24,20 +22,6 @@ type executeQueryRequest struct {
 	Timeout    *int64   `json:"timeout,omitempty"`
 }
 
-// SQL returns the effective query text to execute. Prefers the statements
-// array (widget's canonical field) and falls back to the raw query.
-func (r executeQueryRequest) SQL() string {
-	if len(r.Statements) > 0 {
-		var joined strings.Builder
-		joined.WriteString(r.Statements[0])
-		for _, s := range r.Statements[1:] {
-			joined.WriteString("; " + s)
-		}
-		return joined.String()
-	}
-	return r.Query
-}
-
 // executeSessionQueryRequest matches TimescaleExecuteSessionQueryRequest.
 type executeSessionQueryRequest struct {
 	executeQueryRequest
@@ -81,9 +65,8 @@ type createSessionResponse struct {
 // columnsResult is the first NDJSON line written by executeQuery. The widget
 // uses 'columns' as the discriminator.
 type columnsResult struct {
-	RunID    string             `json:"runId"`
-	Columns  dbdriver.Columns   `json:"columns"`
-	Metadata *dbdriver.Metadata `json:"meta,omitempty"`
+	RunID   string           `json:"runId"`
+	Columns dbdriver.Columns `json:"columns"`
 }
 
 // successResult is the final NDJSON line on a successful run.
diff --git a/internal/serve/wire_test.go b/internal/serve/wire_test.go
index f777794..c195536 100644
--- a/internal/serve/wire_test.go
+++ b/internal/serve/wire_test.go
@@ -5,49 +5,17 @@ import (
 	"testing"
 )
 
-func TestExecuteQueryRequest_SQL(t *testing.T) {
-	tests := []struct {
-		name string
-		body string
-		want string
-	}{
-		{
-			name: "statements array (widget canonical)",
-			body: `{"projectId":"p","serviceId":"s","runId":"r","statements":["SELECT 1;"],"stream":true}`,
-			want: "SELECT 1;",
-		},
-		{
-			name: "multiple statements joined with ;",
-			body: `{"projectId":"p","serviceId":"s","runId":"r","statements":["SELECT 1","SELECT 2"]}`,
-			want: "SELECT 1; SELECT 2",
-		},
-		{
-			name: "falls back to query field when statements is empty",
-			body: `{"projectId":"p","serviceId":"s","runId":"r","query":"SELECT 3","statements":[]}`,
-			want: "SELECT 3",
-		},
-		{
-			name: "falls back to query field when statements is omitted",
-			body: `{"projectId":"p","serviceId":"s","runId":"r","query":"SELECT 4"}`,
-			want: "SELECT 4",
-		},
-		{
-			name: "empty when both fields are blank",
-			body: `{"projectId":"p","serviceId":"s","runId":"r"}`,
-			want: "",
-		},
+func TestExecuteQueryRequestDecodesStatements(t *testing.T) {
+	body := `{"projectId":"p","serviceId":"s","runId":"r","statements":["SELECT 1","SELECT 2"],"query":"SELECT 3"}`
+	var req executeQueryRequest
+	if err := json.Unmarshal([]byte(body), &req); err != nil {
+		t.Fatalf("decode: %v", err)
 	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			var req executeQueryRequest
-			if err := json.Unmarshal([]byte(tt.body), &req); err != nil {
-				t.Fatalf("decode: %v", err)
-			}
-			if got := req.SQL(); got != tt.want {
-				t.Errorf("SQL() = %q, want %q", got, tt.want)
-			}
-		})
+	if len(req.Statements) != 2 || req.Statements[0] != "SELECT 1" || req.Statements[1] != "SELECT 2" {
+		t.Errorf("Statements = %v, want [SELECT 1 SELECT 2]", req.Statements)
+	}
+	if req.Query != "SELECT 3" {
+		t.Errorf("Query = %q, want %q", req.Query, "SELECT 3")
 	}
 }
 
@@ -63,7 +31,7 @@ func TestExecuteSessionQueryRequest_DecodesEmbedded(t *testing.T) {
 	if req.RunID != "r" {
 		t.Errorf("RunID = %q, want %q", req.RunID, "r")
 	}
-	if got := req.SQL(); got != "SELECT 1" {
-		t.Errorf("SQL() = %q, want %q", got, "SELECT 1")
+	if len(req.Statements) != 1 || req.Statements[0] != "SELECT 1" {
+		t.Errorf("Statements = %v, want [SELECT 1]", req.Statements)
 	}
 }

From be3edc2a1c038416cdf97905dbd2bd7b02afaeed Mon Sep 17 00:00:00 2001
From: Justin Murray <justin@tigerdata.com>
Date: Thu, 4 Jun 2026 18:10:52 -0400
Subject: [PATCH 38/39] Modernize loop idioms in serve tests (go fix)

---
 internal/serve/arrow_results_test.go | 2 +-
 internal/serve/execute_test.go       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/internal/serve/arrow_results_test.go b/internal/serve/arrow_results_test.go
index 1b952b7..a47bb4b 100644
--- a/internal/serve/arrow_results_test.go
+++ b/internal/serve/arrow_results_test.go
@@ -16,7 +16,7 @@ func buildBatch(t *testing.T, n int, value string) (int64, func()) {
 	if err != nil {
 		t.Fatalf("NewRecordBuilder: %v", err)
 	}
-	for i := 0; i < n; i++ {
+	for range n {
 		if err := rb.AppendRow([]any{value}); err != nil {
 			t.Fatalf("AppendRow: %v", err)
 		}
diff --git a/internal/serve/execute_test.go b/internal/serve/execute_test.go
index 7d642c5..5135904 100644
--- a/internal/serve/execute_test.go
+++ b/internal/serve/execute_test.go
@@ -107,7 +107,7 @@ func runStreaming(t *testing.T, s *Server, req executeQueryRequest, driver dbdri
 		t.Fatal("runQuery did not return")
 	}
 
-	for _, line := range strings.Split(strings.TrimSpace(execW.Body.String()), "\n") {
+	for line := range strings.SplitSeq(strings.TrimSpace(execW.Body.String()), "\n") {
 		if line == "" {
 			continue
 		}

From c1031a59f0430e476e52e6c1cfcbe9f741d6d53f Mon Sep 17 00:00:00 2001
From: Nathan Cochran <nathanjcochran@gmail.com>
Date: Fri, 5 Jun 2026 13:31:56 -0400
Subject: [PATCH 39/39] Remove unnecessary nil cases in custom data/time Scan
 methods

---
 internal/serve/dbtypes/date.go | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/internal/serve/dbtypes/date.go b/internal/serve/dbtypes/date.go
index ae8b816..e092037 100644
--- a/internal/serve/dbtypes/date.go
+++ b/internal/serve/dbtypes/date.go
@@ -9,8 +9,6 @@ type Date string
 
 func (d *Date) Scan(src any) error {
 	switch val := src.(type) {
-	case nil:
-		*d = ""
 	case string:
 		*d = Date(val)
 	case time.Time:
@@ -25,8 +23,6 @@ type ClockTime string
 
 func (c *ClockTime) Scan(src any) error {
 	switch val := src.(type) {
-	case nil:
-		*c = ""
 	case string:
 		*c = ClockTime(val)
 	case time.Time:
@@ -41,8 +37,6 @@ type ClockTimeTZ string
 
 func (c *ClockTimeTZ) Scan(src any) error {
 	switch val := src.(type) {
-	case nil:
-		*c = ""
 	case string:
 		*c = ClockTimeTZ(val)
 	case time.Time:
@@ -57,8 +51,6 @@ type DateTime string
 
 func (d *DateTime) Scan(src any) error {
 	switch val := src.(type) {
-	case nil:
-		*d = ""
 	case string:
 		*d = DateTime(val)
 	case time.Time:
@@ -73,8 +65,6 @@ type Timestamp string
 
 func (t *Timestamp) Scan(src any) error {
 	switch val := src.(type) {
-	case nil:
-		*t = ""
 	case string:
 		*t = Timestamp(val)
 	case time.Time: