fix: Validates session factory type in repository (#18497)

Signed-off-by: -LAN- <laipz8200@outlook.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

api/repositories/workflow_node_execution/sqlalchemy_repository.py

@@ -37,8 +37,12 @@ class SQLAlchemyWorkflowNodeExecutionRepository:
         # If an engine is provided, create a sessionmaker from it
         if isinstance(session_factory, Engine):
             self._session_factory = sessionmaker(bind=session_factory, expire_on_commit=False)
-        else:
+        elif isinstance(session_factory, sessionmaker):
             self._session_factory = session_factory
+        else:
+            raise ValueError(
+                f"Invalid session_factory type {type(session_factory).__name__}; expected sessionmaker or Engine"
+            )
 
         self._tenant_id = tenant_id
         self._app_id = app_id