Round-2 review fixes for PR #234 (#184 autonomous agent runs).
F6 (stability): finalizeRun no longer drops the in-memory entry before the
terminal write. It now UPDATEs first with a bounded retry; only on success does
it arm the idempotency once-gate (a new `settled` set keyed on "row already
terminal", not "entry deleted") and free the chat's active slot. If every
attempt fails the entry is RETAINED and the run left unsettled so a later
finalize / requestStop->onAbort / sweep can retry — a transient blip can no
longer strand a run 'running' and 409 every future turn in the chat. Idempotency
preserved (double-settle still collapses to a single write).
F7 (regression from F2): int-spec constructs AiChatRunService with the 2nd
EnvironmentService arg ({ isCloud: () => false }) so the file type-checks and all
integration tests compile+run again.
F8 (regression from F1): the windowed "stale but not fresh" case now calls
sweepRunning({ staleMs: SWEEP_RUN_STALE_MS }); added an int-level variant-C case
proving the no-arg boot sweep aborts even a FRESH running run.
F9 (coverage): run-race spec now captures streamText's options and invokes
onStepFinish/onFinish/onAbort/onError, asserting the #184 run hooks
(onStep / onSettled completed|aborted|error) fire with the right args.
F10 (docs): added an autonomousRuns single-instance-only note to .env.example so
the warnIfMultiInstance JSDoc reference is accurate.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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