- Add migration 101: guarded UPDATE moving mimecast-sync from 0 2 * * * to
45 4 * * * (minute 45 is unused by any other schedule row)
- Guarded on the stale cron value so it's a no-op if already moved and won't
clobber an admin's manual schedule change
- Applied the same UPDATE directly to the live pulse-postgres container
(migrations only auto-apply on first volume boot, per CLAUDE.md)
- Eliminates the 3-way 2 AM collision with qbo-sync-2am and veeam-full
