Adjusted `datetime.utcnow` to `datetime.now` for consistency and refactored token creation functions for cleaner structure. Removed duplicated `create_access_token` and `create_refresh_token` definitions by consolidating them into a single location.
Adjusted `datetime.utcnow` to `datetime.now` for consistency and refactored token creation functions for cleaner structure. Removed duplicated `create_access_token` and `create_refresh_token` definitions by consolidating them into a single location.