Replaced calls to get_file_url with get_uploaded_file_url where appropriate. Added the get_uploaded_file_url method to the StorageProvider class and its implementations for more specific URL generation. Updated corresponding tests and API routes to reflect this change.
Introduced new fixtures and tests for storage functionality, including saving files, generating URLs, and token creation/verification. Refactored `get_storage_provider` into a separate dependency module. Enhanced test coverage for improved reliability.
