* (#13284) add avector_store_create to route_type which doesn't require model
* (#13284) exclude hidden params in metadata when create vector store
* (#13284) fix lint error
* (#13284) keep metadata None if metadata is None(not empty dict)
* (#13284) add test code
* (#13284) change test code name
* (#13284) add avector_store_search to route_type which doesn't require model