Fix agent tool support, fix many other bugs

backend/src/server.py

@@ -111,6 +111,7 @@ async def start_server(app, shutdown_event):
             try:
                 user_id = auth_manager.load_token(auth_req['token'])
                 if not await app.verify_user_id(user_id):
+                    print("Invalid Token");
                     await websocket.send(json.dumps({'error': 'invalid credentials'}))
                     return
             except Exception as err:
@@ -125,6 +126,7 @@ async def start_server(app, shutdown_event):
 
             user_id = app.verify_user_credentials(auth_req['username'], auth_req['password'])
             if user_id is None:
+                print("Invalid Credentials");
                 await websocket.send(json.dumps({'error': 'invalid credentials'}))
                 return