The cached Prometheus text is shared as qbit-backups.metrics and
cleared on every node when a run finishes or a plan is saved or
deleted (the plan customizer now also runs post insert/update/delete);
the 60 s TTL stays as the safety net. SlaChecker's manifest-head and
bucket-audit throttles and the process-permission map are node-local.
Builds against QQQ 4.1.0-SNAPSHOT (qqq.snapshot.version) until the QQQ
RC with ClusterCaches is published; a release must pin that RC.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>