Refactor OAuth provider linking and unlinking logic into a dedicated service; enhance error handling and logging throughout the application; improve sound management and scanning services with better file handling and unique naming; implement centralized error and logging services for consistent API responses and application-wide logging configuration.

app/services/decorators.py

@@ -188,10 +188,12 @@ def require_credits(credits_needed: int):
             # Emit credits changed event via SocketIO
             try:
                 from app.services.socketio_service import socketio_service
+
                 socketio_service.emit_credits_changed(user.id, user.credits)
             except Exception as e:
                 # Don't fail the request if SocketIO emission fails
                 import logging
+
                 logger = logging.getLogger(__name__)
                 logger.warning(f"Failed to emit credits_changed event: {e}")