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.

package.json

@@ -47,9 +47,8 @@
   "dependencies": {
     "@fontsource/geist": "^5.2.8",
     "@hello-pangea/dnd": "^18.0.1",
+    "@milkdown/crepe": "^7.18.0",
     "@milkdown/kit": "^7.18.0",
-    "@milkdown/react": "^7.18.0",
-    "@milkdown/theme-nord": "^7.18.0",
     "@tailwindcss/vite": "^4.2.0",
     "@tanstack/react-query": "^5.90.21",
     "@tanstack/react-router": "^1.161.1",
@@ -64,6 +63,7 @@
     "electron-squirrel-startup": "^1.0.1",
     "electron-store": "^8.2.0",
     "framer-motion": "^12.34.2",
+    "keytar": "^7.9.0",
     "lucide-react": "^0.575.0",
     "radix-ui": "^1.4.3",
     "react": "^19.2.4",