Worker-004: post-watchdog-fault heartbeats reported a non-faulted state.
ReportWatchdogFaultIfNeededAsync now sets _state = Faulted before writing
the StaHung fault.
Worker-005 (re-triaged): the cited OnPoll site was removed by Worker-001;
the real silent-failure bug was in MxAccessStaSession.RunAlarmPollLoopAsync,
which caught only graceful-stop exceptions. A failing PollOnce now records a
WorkerFault on the event queue instead of vanishing on a non-awaited task.
Worker-006: RunAsync's finally skipped runtime disposal when shutdown timed
out, leaking the STA thread and COM object. It now always disposes
(MxAccessStaSession.Dispose is idempotent and bounded).
Worker-007 (re-triaged): replaced MxAccessComServer's Type.InvokeMember
reflection fallback with an IMxAccessServer fast path plus typed
ILMXProxyServer* casts; a non-conforming object now fails fast.
Worker-008: alarm consumer STA affinity was unenforced. MxAccessStaSession
records the alarm consumer's STA thread id and asserts every PollOnce runs
on it via a unit-testable guard.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Joseph Doherty
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