feat: add task comments feature with CRUD operations

- Introduced a new `task_comments` table in the database schema.
- Implemented task comments API endpoints for listing, creating, and deleting comments.
- Enhanced the task detail dialog to display comments and allow users to add new comments.
- Updated task row component to handle click events for viewing task details.
- Added a theme provider to manage light/dark mode across the application.
- Refactored Milkdown editor to use Crepe for improved markdown editing experience.
- Updated global styles to accommodate new editor and theme changes.
- Enhanced task filtering and sorting functionality in the tasks page.

src/main/index.ts

@@ -4,6 +4,9 @@ import started from 'electron-squirrel-startup';
 import { initDb } from './db';
 import { appRouter } from './router';
 import { createIPCHandler } from './ipc';
+import { initAI } from './ai/provider';
+// Import to trigger provider registration before initAI() runs
+import './ai/copilot';
 
 // Handle creating/removing shortcuts on Windows when installing/uninstalling.
 if (started) {
@@ -49,6 +52,8 @@ app.on('ready', () => {
   initDb();
   const win = createWindow();
   createIPCHandler({ router: appRouter, windows: [win] });
+  // AI init is best-effort — never block window creation
+  initAI().catch((err) => console.error('[AI] Init failed:', err));
 });
 
 // Quit when all windows are closed, except on macOS. There, it's common