chore(test): WIP per-surface test projects and behavior baselines for the agent/store/tui split (P0)

.github/workflows/surfaces.yml

@@ -0,0 +1,86 @@
+name: 'Surfaces'
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  architecture:
+    name: Architecture
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+      - uses: pnpm/action-setup@eae0cfeb286e66ffb5155f1a79b90583a127a68b # v2.4.1
+        with:
+          version: 10.34.5
+          run_install: false
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        with:
+          node-version-file: 'package.json'
+          cache: 'pnpm'
+      - run: pnpm install --frozen-lockfile
+      - run: node scripts/generate-version.cjs
+      - run: pnpm typecheck
+      - run: pnpm lint
+      - run: pnpm test:arch
+
+  surface:
+    name: ${{ matrix.project }}
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    strategy:
+      fail-fast: false
+      matrix:
+        project: [store, agent, tui, cli, harness]
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+      - uses: pnpm/action-setup@eae0cfeb286e66ffb5155f1a79b90583a127a68b # v2.4.1
+        with:
+          version: 10.34.5
+          run_install: false
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        with:
+          node-version-file: 'package.json'
+          cache: 'pnpm'
+      - run: pnpm install --frozen-lockfile
+      - run: node scripts/generate-version.cjs
+      - run: pnpm test:${{ matrix.project }} --coverage
+      - uses: codecov/codecov-action@13ce06bfc6bbe3ecf90edbbf1bc32fe5978ca1d3 # pin@v5.3.1
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: false
+          flags: ${{ matrix.project }}
+
+  bundle:
+    name: Bundle audit
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+      - uses: pnpm/action-setup@eae0cfeb286e66ffb5155f1a79b90583a127a68b # v2.4.1
+        with:
+          version: 10.34.5
+          run_install: false
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        with:
+          node-version-file: 'package.json'
+          cache: 'pnpm'
+      - run: pnpm install --frozen-lockfile
+      - name: Production build and smoke test
+        run: pnpm build
+      - name: Production chunk manifest
+        run:
+          npx tsx scripts/chunk-manifest.no-jest.ts dist >
+          chunk-manifest.prod.json
+      - name: CI build and smoke test
+        run: pnpm build:ci
+      - name: CI chunk manifest
+        run:
+          npx tsx scripts/chunk-manifest.no-jest.ts dist >
+          chunk-manifest.ci.json
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: chunk-manifests-${{ github.sha }}
+          path: chunk-manifest.*.json

e2e-harness/__fixtures__/control-frame-auth.txt

@@ -0,0 +1,49 @@
+                               PostHog Wizard v2.76.0                                                                    Feedback: wizard@posthog.com 
+
+                               PostHog Setup Wizard
+                               ✔ Framework: Node.js
+
+                               Privacy & data
+                               • Source files are read by Claude for AI context
+                               • .env* and secrets stay on your machine
+                               • Press [I] for full privacy & usage info
+
+                               ⠴ Waiting for authentication...
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+                                I privacy & data

e2e-harness/__fixtures__/control-frame-intro.txt

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+                               PostHog Wizard v2.76.0                                                                    Feedback: wizard@posthog.com 
+
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+                                                                               ███ PostHog Wizard 🦔
+
+                                                               We'll use AI to analyze your project and complete work.
+                                                                   Review what data is shared in "Privacy & data."
+                                                                         .env* values stay on your machine.
+
+                                                                    Let's do two hours of work in eight minutes.
+
+                                                                        Directory ✔ /wz-baseline-express-todo
+                                                                        Framework ✔ Node.js (detected)
+
+                                                                              ▸ Continue
+                                                                                Change framework
+                                                                                More info
+                                                                                Privacy & data
+                                                                                Cancel
+
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+                                ↑↓ navigate  enter select

e2e-harness/__fixtures__/control-state-baseline.json

@@ -0,0 +1,107 @@
+{
+  "recordedFrom": "scripts/tui-host.no-jest.ts MODE=serve via scripts/wizard-ci-mcp.no-jest.ts, wizard 2.76.0",
+  "app": "wizard-workbench/apps/basic-integration/javascript-node/express-todo (throwaway copy, detection only, no key)",
+  "projectId": "228144",
+  "steps": [
+    {
+      "call": "open_app",
+      "state": {
+        "currentScreen": "intro",
+        "hasOverlay": false,
+        "runPhase": "idle",
+        "session": {
+          "installDir": "<APP_DIR>",
+          "integration": "javascript_node",
+          "detectedFrameworkLabel": "Node.js",
+          "detectionComplete": true,
+          "setupConfirmed": false,
+          "integrate": null,
+          "hasCredentials": false,
+          "projectId": null,
+          "mcpComplete": false,
+          "slackStepDismissed": false,
+          "skillsComplete": false,
+          "outroDismissed": false,
+          "llmOptIn": false,
+          "discoveredFeatures": []
+        },
+        "tasks": [],
+        "statusMessages": [],
+        "eventPlan": [],
+        "pendingQuestion": null,
+        "taskNotice": null,
+        "setupQuestions": [],
+        "actions": [
+          { "id": "confirm_setup", "description": "Confirm the intro and continue (sets setupConfirmed)." }
+        ],
+        "integration": "idle",
+        "integrationError": null
+      }
+    },
+    {
+      "call": "perform_action",
+      "action": "confirm_setup",
+      "state": {
+        "currentScreen": "auth",
+        "hasOverlay": false,
+        "runPhase": "idle",
+        "session": {
+          "installDir": "<APP_DIR>",
+          "integration": "javascript_node",
+          "detectedFrameworkLabel": "Node.js",
+          "detectionComplete": true,
+          "setupConfirmed": true,
+          "integrate": null,
+          "hasCredentials": false,
+          "projectId": null,
+          "mcpComplete": false,
+          "slackStepDismissed": false,
+          "skillsComplete": false,
+          "outroDismissed": false,
+          "llmOptIn": false,
+          "discoveredFeatures": []
+        },
+        "tasks": [],
+        "statusMessages": [],
+        "eventPlan": [],
+        "pendingQuestion": null,
+        "taskNotice": null,
+        "setupQuestions": [],
+        "actions": []
+      }
+    },
+    {
+      "call": "read_state",
+      "state": {
+        "currentScreen": "auth",
+        "hasOverlay": false,
+        "runPhase": "idle",
+        "session": {
+          "installDir": "<APP_DIR>",
+          "integration": "javascript_node",
+          "detectedFrameworkLabel": "Node.js",
+          "detectionComplete": true,
+          "setupConfirmed": true,
+          "integrate": null,
+          "hasCredentials": false,
+          "projectId": null,
+          "mcpComplete": false,
+          "slackStepDismissed": false,
+          "skillsComplete": false,
+          "outroDismissed": false,
+          "llmOptIn": false,
+          "discoveredFeatures": []
+        },
+        "tasks": [],
+        "statusMessages": [],
+        "eventPlan": [],
+        "pendingQuestion": null,
+        "taskNotice": null,
+        "setupQuestions": [],
+        "actions": [],
+        "integration": "idle",
+        "integrationError": null
+      }
+    }
+  ]
+}

e2e-harness/__tests__/e2e-flow-snapshot.test.ts

@@ -18,6 +18,7 @@ import { InkUI } from '@ui/tui/ink-ui';
 import { setUI } from '@ui/index';
 import { buildSession, RunPhase } from '@lib/wizard-session';
 import { Integration } from '@lib/constants';
+import { HostResolution } from '@lib/host-resolution';
 import { FRAMEWORK_REGISTRY } from '@lib/registry';
 import { WizardReadiness } from '@lib/health-checks/readiness';
 import {
@@ -89,7 +90,7 @@ function traceFlow(
       store.setCredentials({
         accessToken: 'phx_x',
         projectApiKey: 'phc_x',
-        host: 'https://us.posthog.com',
+        host: HostResolution.fromApiHost('https://us.posthog.com'),
         projectId: 1,
       });
     } else if (screen === ScreenId.SelfDrivingGithub) {

e2e-harness/__tests__/wizard-ci-driver.test.ts

@@ -251,7 +251,7 @@ describe('WizardCiDriver — source-maps project pick', () => {
     store.setCredentials({
       accessToken: 'phx_x',
       projectApiKey: 'phc_x',
-      host: 'https://us.posthog.com',
+      host: HostResolution.fromApiHost('https://us.posthog.com'),
       projectId: 1,
     });
   }

package.json

@@ -132,6 +132,13 @@
     "fix:prettier": "prettier --write \"{lib,src,test}/**/*.ts\"",
     "fix:eslint": "eslint . --cache --format stylish --fix",
     "test": "pnpm build && vitest run",
+    "test:store": "vitest run --project store",
+    "test:agent": "vitest run --project agent",
+    "test:tui": "vitest run --project tui",
+    "test:cli": "vitest run --project cli",
+    "test:harness": "vitest run --project harness",
+    "test:arch": "vitest run --project architecture",
+    "test:goldens:update": "vitest run --project tui --project store -u",
     "test:coverage": "pnpm build && vitest run --coverage",
     "test:e2e": "pnpm build && ./e2e-tests/run.sh",
     "test:e2e-record": "export RECORD_FIXTURES=true && pnpm build && ./e2e-tests/run.sh",

scripts/README.md

@@ -17,6 +17,7 @@ real ink render) and is driven purely by store state manipulation; a PTY parent
 | **`tui-host.no-jest.ts`** | Real TUI host: `MODE=fixed` follows a profile; `MODE=serve` accepts socket commands. | `APP_DIR`, `PROJECT_ID`, key for a full run, `SNAP_CTRL`; run under a PTY, with `CONTROL_SOCK` in serve mode |
 | **`tui-snapshots.no-jest.ts`** | Runs the fixed host and saves colored `SNAP_OUT/NN-<screen>.ans` frames, including within-screen progress. | `SNAP_OUT`, `APP_DIR`, `PROJECT_ID`, `POSTHOG_KEY_FILE` or `POSTHOG_PERSONAL_API_KEY` |
 | **`wizard-ci-mcp.no-jest.ts`** | Stdio MCP server: `open_app`, `read_state`, `perform_action`, `render_screen`, `run_agent`. Screen output is plain text. | Spawns the host; `open_app` requires `appDir` and `projectId`, with optional `keyFile`, `apiKey`, `region` |
+| **`chunk-manifest.no-jest.ts`** | Prints a structural manifest of `dist/`: per chunk, the source files it contains and the chunks it imports, hash suffixes stripped. Baselines live in `scripts/__fixtures__/chunk-manifest.{prod,ci}.json`. | A built `dist/` |
 | **`wizard-ci-explore.no-jest.ts`** | `pnpm wizard-ci-explore`: opens an app, confirms setup, reads state, prints one frame, and exits. It does not run the agent. | `APP_DIR`, `PROJECT_ID`; optional `POSTHOG_KEY_FILE` |
 
 > You usually don't call these directly — `pnpm wizard-ci-snapshots` (in