fix(conductor): Apply review suggestions for track 'live_gui_testing_20260223'

tests/test_mcp_perf_tool.py

@@ -10,10 +10,10 @@ import mcp_client
 
 def test_mcp_perf_tool_retrieval():
     # Test that the MCP tool can call performance_monitor metrics
-    mock_app = MagicMock()
-    mock_app.perf_monitor.get_metrics.return_value = {"fps": 60}
+    mock_metrics = {"fps": 60, "last_frame_time_ms": 16.6}
     
-    # Simulate tool call
-    with patch('mcp_client.get_app_instance', return_value=mock_app):
-        # We assume there's a tool named 'get_performance_metrics' in the MCP client
-        pass
+    # Simulate tool call by patching the callback
+    with patch('mcp_client.perf_monitor_callback', return_value=mock_metrics):
+        result = mcp_client.get_ui_performance()
+        assert "60" in result
+        assert "16.6" in result