GitLab

- Introduced new API endpoint and service method to enable/disable WAF for multiple listeners
- Updated router, controller, and service to support bulk listener WAF operations
- Added new request type `EnableListenerWafsReq` to handle multiple listener configurations
- Implemented logic to add or remove WAF configurations for specific listeners based on input

- Modified SQL migration to add 'hosts' column to gateway_listeners table
- Updated model, service, and controller to support hosts in gateway listener operations
- Added new GetWafGatewayInfo method to retrieve WAF gateway information
- Refactored WAF service methods to handle hosts and improve flexibility