AIO's borg now runs daily from 07:30 UTC for about 2 hours, so the Saturday
05:00 fire can find the lock held and skip the whole week, which trips Uptime
Kuma's 8-day push window. Poll the lock every 5 minutes for up to 6 hours and
defer only if it is still held after that.
Co-Authored-By: Claude Opus 5.5 <[email protected]>