chore(fix): Resolve regressions in history logic, track startup, and GUI performance

tests/test_context_composition_phase6.py

@@ -83,8 +83,8 @@ def test_view_mode_default_summary(tmp_path):
  test_file = base_dir / "test.py"
  test_file.write_text("def hello():\n print('world')\n", encoding="utf-8")
  
- # Test with simple string path
- files = ["test.py"]
+ # Test with explicit summary mode
+ files = [{"path": "test.py", "view_mode": "summary"}]
  items = aggregate.build_file_items(base_dir, files)
  
  assert len(items) == 1

tests/test_mma_concurrent_tracks_sim.py

@@ -35,6 +35,10 @@ def test_mma_concurrent_tracks_execution(live_gui) -> None:
  client = api_hook_client.ApiHookClient()
  assert client.wait_for_server(timeout=15), "Hook server did not start"
 
+ # 0. Reset session to clear any stale state
+ client.click('btn_reset')
+ time.sleep(1.0)
+
  # 1. Setup provider to custom mock
  mock_path = os.path.abspath("tests/mock_concurrent_mma.py")
  client.set_value('current_provider', 'gemini_cli')

tests/test_mma_concurrent_tracks_stress_sim.py

@@ -31,6 +31,10 @@ def test_mma_concurrent_tracks_stress(live_gui) -> None:
  client = api_hook_client.ApiHookClient()
  assert client.wait_for_server(timeout=15), "Hook server did not start"
 
+ # 0. Reset session to clear any stale state
+ client.click('btn_reset')
+ time.sleep(1.0)
+
  # 1. Setup mock provider
  client.set_value('current_provider', 'gemini_cli')
  client.set_value('gcli_path', f'"{sys.executable}" "{os.path.abspath("tests/mock_concurrent_mma.py")}"')