root-essentials-backup.sh excludes *.db by design; Core backstops that with hermes-backup.sh,
the migrated box did not. Her conversation store had zero backup coverage. Added
hermes-db-backup.sh (03:10 daily, sqlite3 .backup + quick_check + download-and-verify),
restore test passed (291 MB, quick_check ok, 99285 messages). Backup plan had no entry for
her box at all, now it does.