chore(conductor): Mark track 'MMA Core Engine Implementation' as complete and verify with Phase 6 tests

gui_2.py

@@ -111,7 +111,7 @@ class ConfirmDialog:
         return self._approved, self._script
 
 
-class ManualSlopGUI:
+class App:
     """The main ImGui interface orchestrator for Manual Slop."""
 
     def __init__(self):
@@ -2595,7 +2595,7 @@ class ManualSlopGUI:
         session_logger.close_session()
 
 def main():
-    app = ManualSlopGUI()
+    app = App()
     app.run()
 
 if __name__ == "__main__":