fix(ai_client_stub): add module-level import for GeminiCliAdapter

The class was only accessible inside function scopes, causing
AttributeError when app_controller tried to instantiate it
at module level via ai_client.GeminiCliAdapter().

sloppy.py

@@ -17,6 +17,12 @@ os.environ["AI_SERVER_ENABLED"] = "1"
 from defer.sugar import install as _install_defer
 _install_defer()
 
+# Route all ai_client imports to ai_client_stub to avoid loading heavy SDKs
+if os.environ.get("AI_SERVER_ENABLED"):
+    import sys
+    from src import ai_client_stub
+    sys.modules["src.ai_client"] = ai_client_stub
+
 from src.gui_2 import main
 
 if __name__ == "__main__":