Session fixes: auth working, frontend files created, running locally

- Fixed circular imports in API files
- Created missing frontend lib files (api.ts, socket.ts, types.ts)
- Fixed register endpoint to return token instead of user
- Updated Anthropic client version
- Backend running locally on port 8000
- Frontend running on port 3000
- Authentication working
- Still need: channel response fix, WebSocket auth fix

backend/api/messages.py

@@ -62,8 +62,8 @@ async def handle_grimlock_mention(
     message: Message,
     channel: Channel,
     db: Session,
-    context_manager: ContextManager,
-    ai_client: AIClient
+    context_manager: ContextManager = Depends(lambda: main.context_manager),
+    ai_client: AIClient = Depends(lambda: main.ai_client)
 ):
     """Handle @grimlock mention - respond with AI"""
     
@@ -150,8 +150,8 @@ async def send_message(
     background_tasks: BackgroundTasks,
     current_user: User = Depends(get_current_user),
     db: Session = Depends(get_db),
-    context_manager: ContextManager = Depends(main.get_context_manager),
-    ai_client: AIClient = Depends(main.get_ai_client)
+    context_manager: ContextManager = Depends(lambda: main.context_manager),
+    ai_client: AIClient = Depends(lambda: main.ai_client)
 ):
     """Send a message to a channel"""