By: Michael Lynch <git@mtlynch.io>
Document the heartbeat as a second, independent monitor The Cronitor section only described the hourly /login liveness check. Note that the new heartbeat-url (previous commit) catches a failure mode that check structurally cannot see: a replica that has silently stopped syncing while the app keeps serving requests normally. Co-Authored-By: Claude <noreply@anthropic.com>