Implementing app search feature (#1302)

This PR implements app search feature and addresses the issue #1182.
    
<!-- This is an auto-generated description by cubic. -->
---

## Summary by cubic
Adds a fast app search with a command-style dialog so users can find
apps by name or chat content and jump to them quickly. Implements the
search experience requested in #1182.

- New Features
- Search dialog (Ctrl+K or “Search Apps” button) with result snippets
from matching chat titles/messages.
- Searches across app names, chat titles, and message content;
case-insensitive; supports partial matches; empty query lists all apps.
  - Selecting a result navigates to the app and closes the dialog.
- New IPC endpoint search-app with Zod-validated results, debounced
React Query hook, and preload allowlist update.
- Added E2E tests for dialog open/close, shortcuts, matching behavior,
empty state, and navigation.

<!-- End of auto-generated description by cubic. -->

src/ipc/handlers/app_handlers.ts

@@ -1,7 +1,7 @@
 import { ipcMain, app } from "electron";
 import { db, getDatabasePath } from "../../db";
-import { apps, chats } from "../../db/schema";
-import { desc, eq } from "drizzle-orm";
+import { apps, chats, messages } from "../../db/schema";
+import { desc, eq, like } from "drizzle-orm";
 import type {
   App,
   CreateAppParams,
@@ -50,6 +50,7 @@ import { normalizePath } from "../../../shared/normalizePath";
 import { isServerFunction } from "@/supabase_admin/supabase_utils";
 import { getVercelTeamSlug } from "../utils/vercel_utils";
 import { storeDbTimestampAtCurrentVersion } from "../utils/neon_timestamp_utils";
+import { AppSearchResult } from "@/lib/schemas";
 
 const DEFAULT_COMMAND =
   "(pnpm install && pnpm run dev --port 32100) || (npm install --legacy-peer-deps && npm run dev -- --port 32100)";
@@ -1340,6 +1341,91 @@ export function registerAppHandlers() {
       }
     },
   );
+
+  handle(
+    "search-app",
+    async (_, searchQuery: string): Promise<AppSearchResult[]> => {
+      // Use parameterized query to prevent SQL injection
+      const pattern = `%${searchQuery.replace(/[%_]/g, "\\$&")}%`;
+
+      // 1) Apps whose name matches
+      const appNameMatches = await db
+        .select({
+          id: apps.id,
+          name: apps.name,
+          createdAt: apps.createdAt,
+        })
+        .from(apps)
+        .where(like(apps.name, pattern))
+        .orderBy(desc(apps.createdAt));
+
+      const appNameMatchesResult: AppSearchResult[] = appNameMatches.map(
+        (r) => ({
+          id: r.id,
+          name: r.name,
+          createdAt: r.createdAt,
+          matchedChatTitle: null,
+          matchedChatMessage: null,
+        }),
+      );
+
+      // 2) Apps whose chat title matches
+      const chatTitleMatches = await db
+        .select({
+          id: apps.id,
+          name: apps.name,
+          createdAt: apps.createdAt,
+          matchedChatTitle: chats.title,
+        })
+        .from(apps)
+        .innerJoin(chats, eq(apps.id, chats.appId))
+        .where(like(chats.title, pattern))
+        .orderBy(desc(apps.createdAt));
+
+      const chatTitleMatchesResult: AppSearchResult[] = chatTitleMatches.map(
+        (r) => ({
+          id: r.id,
+          name: r.name,
+          createdAt: r.createdAt,
+          matchedChatTitle: r.matchedChatTitle,
+          matchedChatMessage: null,
+        }),
+      );
+
+      // 3) Apps whose chat message content matches
+      const chatMessageMatches = await db
+        .select({
+          id: apps.id,
+          name: apps.name,
+          createdAt: apps.createdAt,
+          matchedChatTitle: chats.title,
+          matchedChatMessage: messages.content,
+        })
+        .from(apps)
+        .innerJoin(chats, eq(apps.id, chats.appId))
+        .innerJoin(messages, eq(chats.id, messages.chatId))
+        .where(like(messages.content, pattern))
+        .orderBy(desc(apps.createdAt));
+
+      // Flatten and dedupe by app id
+      const allMatches: AppSearchResult[] = [
+        ...appNameMatchesResult,
+        ...chatTitleMatchesResult,
+        ...chatMessageMatches,
+      ];
+      const uniqueApps = Array.from(
+        new Map(allMatches.map((app) => [app.id, app])).values(),
+      );
+
+      // Sort newest apps first
+      uniqueApps.sort(
+        (a, b) =>
+          new Date(b.createdAt).getTime() - new Date(a.createdAt).getTime(),
+      );
+
+      return uniqueApps;
+    },
+  );
 }
 
 function getCommand({

src/ipc/ipc_client.ts

@@ -5,6 +5,7 @@ import {
   type UserSettings,
   type ContextPathResults,
   ChatSearchResultsSchema,
+  AppSearchResultsSchema,
 } from "../lib/schemas";
 import type {
   AppOutput,
@@ -66,6 +67,7 @@ import type {
 import type { Template } from "../shared/templates";
 import type {
   AppChatContext,
+  AppSearchResult,
   ChatSearchResult,
   ProposalResult,
 } from "@/lib/schemas";
@@ -312,6 +314,17 @@ export class IpcClient {
     return this.ipcRenderer.invoke("list-apps");
   }
 
+  // Search apps by name
+  public async searchApps(searchQuery: string): Promise<AppSearchResult[]> {
+    try {
+      const data = await this.ipcRenderer.invoke("search-app", searchQuery);
+      return AppSearchResultsSchema.parse(data);
+    } catch (error) {
+      showError(error);
+      throw error;
+    }
+  }
+
   public async readAppFile(appId: number, filePath: string): Promise<string> {
     return this.ipcRenderer.invoke("read-app-file", {
       appId,