* Added: Ability to pause and resume maintenance schedules for more control over scheduled maintenance tasks.
* Added: Bulk actions for maintenance schedules, allowing users to delete, pause, or resume multiple schedules at once.
* Added: Status tracking for maintenance schedules to provide clearer visibility into schedule activity and failures.
* Added: Target details to the schedules table, showing the number of selected sites, tags, or clients included in each schedule.
* Added: Persistent tracking and UI for per-site failures during maintenance runs.
* Updated: Improved schedule frequency labels to use clearer, more natural wording, such as "Twice per day" instead of "2/Day".
* Updated: Improved extension initialization timing to ensure proper loading order with other plugins, enhancing compatibility and reliability during startup.
* Updated logging priority configuration.
* Dev: Database upgrade handling for the new maintenance schedule fields, including `paused`, `last_run_status`, `last_run_error`, `last_failed_at`, and `last_run_failures`.
