fix: Handle None event_queue in _queue_put, fix test assertion

src/multi_agent_conductor.py

@@ -271,7 +271,8 @@ class ConductorEngine:
 
 def _queue_put(event_queue: events.SyncEventQueue, event_name: str, payload) -> None:
  """Thread-safe helper to push an event to the SyncEventQueue from a worker thread."""
- event_queue.put(event_name, payload)
+ if event_queue is not None:
+  event_queue.put(event_name, payload)
 
 def confirm_execution(payload: str, event_queue: events.SyncEventQueue, ticket_id: str) -> bool:
  """

tests/test_conductor_engine_v2.py

@@ -282,8 +282,8 @@ def test_run_worker_lifecycle_pushes_response_via_queue(monkeypatch: pytest.Monk
  patch("src.multi_agent_conductor._queue_put") as mock_queue_put:
   mock_spawn.return_value = (True, "prompt", "context")
   run_worker_lifecycle(ticket, context, event_queue=mock_event_queue)
-  mock_queue_put.assert_called_once()
-  call_args = mock_queue_put.call_args[0]
+  mock_queue_put.assert_called()
+  call_args = mock_queue_put.call_args_list[0][0]
   assert call_args[1] == "response"
   assert call_args[2]["stream_id"] == "Tier 3 (Worker): T1"
   assert call_args[2]["text"] == "Task complete."