d74079da63
AlertInstanceRepository gains listFiringDueForReNotify(Instant) — only returns instances where last_notified_at IS NOT NULL and cadence has elapsed (IS NULL branch excluded: sweep only re-notifies, initial notify is the dispatcher's job). AlertEvaluatorJob.sweepReNotify() runs at the end of each tick, enqueues fresh notifications for eligible instances and stamps last_notified_at. NotificationDispatchJob stamps last_notified_at on the alert_instance when a notification is DELIVERED, providing the anchor timestamp for cadence checks. PostgresAlertInstanceRepositoryIT adds listFiringDueForReNotify test covering the three-rule eligibility matrix (never-notified, long-ago, recent). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>