docker_watchdog now writes daemon_confirmed_down=true to its state file
when restart is attempted and daemon is still unresponsive. Clears the
flag on recovery.
stability_watchdog removes the duplicate CRITICAL daemon check (which
bypassed all strikes, all abort conditions, and had its own rc.docker
restart). Replaced with a standard strike check reading the
daemon_confirmed_down flag from docker_watchdog's state file.
Result: docker_watchdog owns all daemon restart logic. stability_watchdog
escalates to reboot only after N consecutive strike cycles confirming the
daemon is truly unrecoverable — same pattern as all other standard checks.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
