Remove the letsencrypt.sh script and integrate LetsEncrypt functionality directly into the web application via new API endpoints. This includes creating, updating, retrieving, and deleting LetsEncrypt configurations, improving maintainability and user interaction with the LetsEncrypt feature.
Refactored code to use `server_id` in place of `server` across various modules to improve clarity and consistency. Updated database migrations, schema definitions, API documentation, and templates accordingly. Additionally, fixed related issues in the backup creation and management logic.
Aidaho