cc-context-monitor.timer on venus stalls intermittently (Trigger: n/a, no next fire scheduled) after normal runs — causes ~45min gaps in scrp-context_monitor-venus heartbeat, false DOWN alerts from whey. Observed 4x on 2026-06-21. Root cause unknown (systemd timer drift? service runtime overrun? OnCalendar+Persistent interaction?). Needs bin-whey-cc investigation.