- Added new core commands for bulk operations: `bulk_set_domains_enabled`, `bulk_remove_domains`, and `bulk_set_domain_server`.
- Enhanced the `CoreResponse` type to include a `bulk` response for tracking changes and skipped domains.
- Introduced a `BulkOutcome` interface to handle results from bulk operations in the web context.
- Implemented bulk selection and actions in the Sites page, including enabling/disabling sites, adding auto domains, moving sites to servers, and deleting sites.
- Created a new `Pagination` component for better navigation through long lists of sites.
- Updated the UI to support bulk actions with checkboxes and improved user feedback for bulk operations.