chore(tests): Final stabilization of test suite and full isolation of live_gui artifacts

tests/test_layout_reorganization.py

@@ -2,28 +2,17 @@ import pytest
 from typing import Any
 import sys
 import os
-import importlib.util
 
 # Ensure project root is in path
 sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
 
-# Load gui_2.py
-spec = importlib.util.spec_from_file_location("gui_2", "gui_2.py")
-gui_2 = importlib.util.module_from_spec(spec)
-sys.modules["gui_2"] = gui_2
-spec.loader.exec_module(gui_2)
 from gui_2 import App
 
-def test_new_hubs_defined_in_show_windows() -> None:
+def test_new_hubs_defined_in_show_windows(mock_app: App) -> None:
  """
  Verifies that the new consolidated Hub windows are defined in the App's show_windows.
  This ensures they will be available in the 'Windows' menu.
  """
- # We don't need a full App instance with ImGui context for this, 
- # as show_windows is initialized in __init__.
- from unittest.mock import patch
- with patch('gui_2.load_config', return_value={}):
-  app = App()
  expected_hubs = [
   "Context Hub",
   "AI Settings",
@@ -31,7 +20,7 @@ def test_new_hubs_defined_in_show_windows() -> None:
   "Operations Hub",
  ]
  for hub in expected_hubs:
-  assert hub in app.show_windows, f"Expected window {hub} not found in show_windows"
+  assert hub in mock_app.show_windows, f"Expected window {hub} not found in show_windows"
 
 def test_old_windows_removed_from_gui2(app_instance_simple: Any) -> None:
  """