feat(a2ui): Implement A2UI backend with question handling and WebSocket support

- Added A2UITypes for defining question structures and answers.
- Created A2UIWebSocketHandler for managing WebSocket connections and message handling.
- Developed ask-question tool for interactive user questions via A2UI.
- Introduced platformUtils for platform detection and shell command handling.
- Centralized TypeScript types in index.ts for better organization.
- Implemented compatibility checks for hook templates based on platform requirements.

ccw/frontend/src/locales/en/project-overview.json

@@ -30,7 +30,14 @@
   "devIndex": {
     "title": "Development History",
     "categories": "Categories",
-    "timeline": "Timeline"
+    "timeline": "Timeline",
+    "category": {
+      "features": "Features",
+      "enhancements": "Enhancements",
+      "bugfixes": "Bug Fixes",
+      "refactorings": "Refactorings",
+      "documentation": "Documentation"
+    }
   },
   "guidelines": {
     "title": "Project Guidelines",