chore: apply ruff auto-fixes and remove dead AST scripts

tests/test_gui_phase4.py

@@ -2,8 +2,7 @@
 import pytest
 from unittest.mock import MagicMock, patch
 from gui_2 import App
-from models import Track, Ticket
-import project_manager
+from models import Track
 
 @pytest.fixture
 def mock_app() -> App:
@@ -73,7 +72,7 @@ def test_add_ticket_logic(mock_app: App):
    assert t["assigned_to"] == "tier3-worker"
    
    # Verify form was closed
-   assert mock_app._show_add_ticket_form == False
+   assert not mock_app._show_add_ticket_form
    # Verify push was called
    mock_push.assert_called_once()
 
@@ -140,7 +139,7 @@ def test_track_discussion_toggle(mock_app: App):
   
   mock_app._render_discussion_panel()
   
-  assert mock_app._track_discussion_active == True
+  assert mock_app._track_discussion_active
   mock_flush.assert_called()
   mock_load.assert_called_with("track-1", ".")
   assert len(mock_app.disc_entries) == 1
@@ -158,7 +157,7 @@ def test_track_discussion_toggle(mock_app: App):
   
   mock_app._render_discussion_panel()
   
-  assert mock_app._track_discussion_active == False
+  assert not mock_app._track_discussion_active
   mock_switch.assert_called_with(mock_app.active_discussion)
 
 def test_push_mma_state_update(mock_app: App):