Add admin UI class to main plugin bootstrap and initialize hooks in admin context only:
- Require class-admin-ui.php in main plugin file
- Initialize Admin_UI::setup_hooks() only when is_admin() is true
- Performance optimization: admin hooks don't load on frontend
Admin moderation interface now provides efficient job listing with custom columns and status filters.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>