Automate the nightly cold backup (Task Scheduler, filled-in local copy in
private tier), stagger the off-site upload, and MONITOR with three layers:
Task Scheduler last-run, a read-only health check (freshness/completeness/
size), and a dead-man's-switch heartbeat that pings an external monitor only
on success so silent failures and offline servers get caught. od-backup-check.ps1
is read-only (no DB/service), iex-safe, and pings <HEARTBEAT_URL> on PASS.
Cross-linked with od-db-backup.md and od-backup-verify.md; README updated.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
igodwin
dfe37d3e4a