Feat: add delete all support for delete operations (#13530)

### What problem does this PR solve?

Add delete all support for delete operations.

### Type of change

- [x] New Feature (non-breaking change which adds functionality)
- [x] Documentation Update

---------

Co-authored-by: writinwaters <cai.keith@gmail.com>

api/db/services/file2document_service.py

@@ -30,13 +30,13 @@ class File2DocumentService(CommonService):
     @DB.connection_context()
     def get_by_file_id(cls, file_id):
         objs = cls.model.select().where(cls.model.file_id == file_id)
-        return objs
+        return list(objs)
 
     @classmethod
     @DB.connection_context()
     def get_by_document_id(cls, document_id):
         objs = cls.model.select().where(cls.model.document_id == document_id)
-        return objs
+        return list(objs)
 
     @classmethod
     @DB.connection_context()