GitLab

fix the checking logic in function get_model_path()

fix: google PSE endpoint uses GET

fix: google PSE returns link, not url

fix: serper wrong field

fix: Change the type from int to float

* Add config variable RAG_EMBEDDING_MODEL_AUTO_UPDATE to control update behavior
* Add RAG utils embedding_model_get_path() function to output the filesystem path in addition to update of the model using huggingface_hub
* Update and utilize existing RAG functions in main: get_embedding_model() & update_embedding_model()
* Add GUI setting to execute manual update process