batch_host_reboot previously asserted only container-set equality after the
reboot. Add the os-audit.sh per-boot health gate: after rpc_login succeeds
post-reboot, run os-audit against the target (ARCHY_LOCAL=0, https) and record
host_reboot_osaudit PASS/FAIL. This asserts the node is actually healthy after
a reboot — RPC up, OTA not wedged (FM12), every app reachable with valid launch
metadata, FM-guards green — not just that the right containers exist. Validated
green on .116 (11 pass / 0 fail / 0 warn).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>