V6 Phase 1 complete

tests/test_config.py

@@ -166,6 +166,7 @@ class TestWorkerReliabilitySettings:
     def test_worker_retry_defaults(self):
         """worker retry settings default to no retries."""
         settings = _make_settings()
+        assert settings.run_embedded_worker is True
         assert settings.worker_max_retries == 0
         assert settings.worker_stale_job_seconds == 30.0
         assert settings.worker_retry_backoff_seconds == 1.0