Sort sidebar projects and threads by recency

apps/web/package.json

@@ -19,6 +19,7 @@
     "@dnd-kit/modifiers": "^9.0.0",
     "@dnd-kit/sortable": "^10.0.0",
     "@dnd-kit/utilities": "^3.2.2",
+    "@formkit/auto-animate": "^0.9.0",
     "@lexical/react": "^0.41.0",
     "@pierre/diffs": "^1.1.0-beta.16",
     "@t3tools/contracts": "workspace:*",

apps/web/src/appSettings.test.ts

@@ -3,6 +3,8 @@ import { describe, expect, it } from "vitest";
 
 import {
   AppSettingsSchema,
+  DEFAULT_SIDEBAR_PROJECT_SORT_ORDER,
+  DEFAULT_SIDEBAR_THREAD_SORT_ORDER,
   DEFAULT_TIMESTAMP_FORMAT,
   getAppModelOptions,
   getCustomModelOptionsByProvider,
@@ -111,6 +113,16 @@ describe("timestamp format defaults", () => {
   });
 });
 
+describe("sidebar sort defaults", () => {
+  it("defaults project sorting to updated_at", () => {
+    expect(DEFAULT_SIDEBAR_PROJECT_SORT_ORDER).toBe("updated_at");
+  });
+
+  it("defaults thread sorting to updated_at", () => {
+    expect(DEFAULT_SIDEBAR_THREAD_SORT_ORDER).toBe("updated_at");
+  });
+});
+
 describe("provider-specific custom models", () => {
   it("includes provider-specific custom slugs in non-codex model lists", () => {
     const claudeOptions = getAppModelOptions("claudeAgent", ["claude/custom-opus"]);
@@ -245,6 +257,8 @@ describe("AppSettingsSchema", () => {
       defaultThreadEnvMode: "local",
       confirmThreadDelete: false,
       enableAssistantStreaming: false,
+      sidebarProjectSortOrder: DEFAULT_SIDEBAR_PROJECT_SORT_ORDER,
+      sidebarThreadSortOrder: DEFAULT_SIDEBAR_THREAD_SORT_ORDER,
       timestampFormat: DEFAULT_TIMESTAMP_FORMAT,
       customCodexModels: [],
       customClaudeModels: [],

apps/web/src/appSettings.ts

@@ -21,6 +21,12 @@ export const MAX_CUSTOM_MODEL_LENGTH = 256;
 export const TimestampFormat = Schema.Literals(["locale", "12-hour", "24-hour"]);
 export type TimestampFormat = typeof TimestampFormat.Type;
 export const DEFAULT_TIMESTAMP_FORMAT: TimestampFormat = "locale";
+export const SidebarProjectSortOrder = Schema.Literals(["updated_at", "created_at", "manual"]);
+export type SidebarProjectSortOrder = typeof SidebarProjectSortOrder.Type;
+export const DEFAULT_SIDEBAR_PROJECT_SORT_ORDER: SidebarProjectSortOrder = "updated_at";
+export const SidebarThreadSortOrder = Schema.Literals(["updated_at", "created_at"]);
+export type SidebarThreadSortOrder = typeof SidebarThreadSortOrder.Type;
+export const DEFAULT_SIDEBAR_THREAD_SORT_ORDER: SidebarThreadSortOrder = "updated_at";
 type CustomModelSettingsKey = "customCodexModels" | "customClaudeModels";
 export type ProviderCustomModelConfig = {
   provider: ProviderKind;
@@ -58,6 +64,12 @@ export const AppSettingsSchema = Schema.Struct({
   confirmThreadDelete: Schema.Boolean.pipe(withDefaults(() => true)),
   diffWordWrap: Schema.Boolean.pipe(withDefaults(() => false)),
   enableAssistantStreaming: Schema.Boolean.pipe(withDefaults(() => false)),
+  sidebarProjectSortOrder: SidebarProjectSortOrder.pipe(
+    withDefaults(() => DEFAULT_SIDEBAR_PROJECT_SORT_ORDER),
+  ),
+  sidebarThreadSortOrder: SidebarThreadSortOrder.pipe(
+    withDefaults(() => DEFAULT_SIDEBAR_THREAD_SORT_ORDER),
+  ),
   timestampFormat: TimestampFormat.pipe(withDefaults(() => DEFAULT_TIMESTAMP_FORMAT)),
   customCodexModels: Schema.Array(Schema.String).pipe(withDefaults(() => [])),
   customClaudeModels: Schema.Array(Schema.String).pipe(withDefaults(() => [])),