Removed old admin controllers, interfaces, AJAX handlers, and partials. Introduced new classes in the includes directory for admin, config, frontend, loader, output manager, and validator. Updated asset files and main plugin entry point to use the new structure. Cleaned up obsolete files and improved overall maintainability.
Introduce the main admin controllers, AJAX handlers, UI partials, and core classes for the WPTag plugin. This includes admin interface components, dashboard, settings, snippet management, asset files, and localization support. These files establish the foundation for managing code snippets, templates, and plugin settings within the WordPress admin.
