Merge runtime provenance script execution fix

scripts/migrate_runtime_model_provenance.py

@@ -10,13 +10,20 @@ import sys
 import tempfile
 from typing import Any
 
-from app.db.session import SessionLocal
-from app.services.data_contract_validation import (
+# Direct execution from /app/scripts sets sys.path[0] to that directory rather
+# than the container application root. Keep the operator command self-contained
+# without requiring an undocumented PYTHONPATH override.
+APP_ROOT = Path(__file__).resolve().parents[1]
+if str(APP_ROOT) not in sys.path:
+    sys.path.insert(0, str(APP_ROOT))
+
+from app.db.session import SessionLocal  # noqa: E402
+from app.services.data_contract_validation import (  # noqa: E402
     PYTORCH_MODEL_CONTRACT_KEY,
     PYTORCH_MODEL_CONTRACT_VERSION,
 )
-from app.services.runtime_model_provenance_service import RuntimeModelProvenanceService
-from app.services.source_registry_service import SourceRegistryService
+from app.services.runtime_model_provenance_service import RuntimeModelProvenanceService  # noqa: E402
+from app.services.source_registry_service import SourceRegistryService  # noqa: E402
 
 
 CLAIM_BOUNDARY = (