- R05:1/12 ScriptedAlarmEngine: _valueCache is cleared in LoadAsync (it is
re-seeded for the referenced paths) so retired tags no longer accrete across
deploys; OnUpstreamChange no longer writes the cache after Dispose.
- R05:3 ScriptedAlarmEngine.Dispose drains in-flight work for at most 5 s
(DisposeDrainTimeout), then cancels it through a shutdown token every
DrainDirtyAsync/ShelvingCheckAsync now runs on, logs a Warning and gives
one second of grace — a stalled IAlarmStateStore.SaveAsync can no longer
hang host shutdown. A save that completes inside the bound is still drained
(positive control test).
- R05:6 ScriptedAlarmSource logs a throwing OnAlarmEvent subscriber at
Warning (naming the alarm) instead of swallowing it.
- R05:7 LocalDbStoreAndForwardSink keeps a cached dead-letter counter in step
with every dead-letter/revive/purge path and resyncs it with the queued
counter on the same cadence; GetStatus no longer runs a COUNT(*) scan.
- R05:9 ScriptLogRateLimiter (20 per source per minute, fixed window, one
summary entry naming the dropped count when the window rolls) behind
ScriptLogTopicSink (key = script|vtag|alarm) and ScriptLogCompanionSink
(key = script name).
Refs #734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
Joseph Doherty
6cbf763719