- Lunch slot no longer pre-blocked; a slot is only unavailable if
booking it would eliminate the last possible 30-min break window
- Added preferred lunch time per worker (closest-to-preferred slot wins)
- Lunch break only applies for shifts >= 6 hours
- Google Calendar: lunch event created/updated/deleted on every
booking create, modify, or cancel via _syncLunchCalendarEvent()
- New table worker_lunch_gcal_events tracks lunch event IDs per worker/date
- New model methods: getBookingsForWorkerDay, getLunchGcalEventId,
upsertLunchGcalEventId, deleteLunchGcalEventRecord, getBookingsForWorkerMonth,
computeLunchBreak
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Astral04andClaude Sonnet 4.6
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