refactor(tests): Update test suite and API hooks for AppController architecture

src/app_controller.py

@@ -160,6 +160,7 @@ class AppController:
   
   self.perf_monitor: PerformanceMonitor = PerformanceMonitor()
   self._pending_gui_tasks: List[Dict[str, Any]] = []
+  self._api_event_queue: List[Dict[str, Any]] = []
 
   # Pending dialogs state moved from App
   self._pending_dialog: Optional[ConfirmDialog] = None
@@ -409,15 +410,15 @@ class AppController:
   self.models_thread = threading.Thread(target=do_fetch, daemon=True)
   self.models_thread.start()
 
- def start_services(self):
+ def start_services(self, app: Any = None):
   """Starts background threads and async event loop."""
   self._prune_old_logs()
-  self._init_ai_and_hooks()
+  self._init_ai_and_hooks(app)
   self._loop = asyncio.new_event_loop()
   self._loop_thread = threading.Thread(target=self._run_event_loop, daemon=True)
   self._loop_thread.start()
 
- def _init_ai_and_hooks(self) -> None:
+ def _init_ai_and_hooks(self, app: Any = None) -> None:
   import api_hooks
   ai_client.set_provider(self._current_provider, self._current_model)
   if self._current_provider == "gemini_cli":
@@ -460,7 +461,7 @@ class AppController:
    'manual_approve': 'ui_manual_approve'
   }
   
-  self.hook_server = api_hooks.HookServer(self)
+  self.hook_server = api_hooks.HookServer(app if app else self)
   self.hook_server.start()
 
  def _run_event_loop(self):