Add real YOLO train acceptance

backend/tests/test_agents.py

@@ -10,6 +10,7 @@ def test_evaluation_agent_returns_checks():
     assert result["summary"]["passed_checks"] == result["summary"]["total_checks"]
     checks = {item["name"]: item["passed"] for item in result["checks"]}
     assert checks["real_workspace_acceptance"] is True
+    assert checks["real_train_acceptance"] is True
 
 
 def test_validation_agent_lightweight(monkeypatch):