* fix(coding-agent): serialize post-compaction continuation on run settlement * refactor(coding-agent): wake RLM quiescence on activity changes instead of polling * fix(coding-agent): guard post-compaction continue against auto-compaction and stale runners - Publish _compactionOperation from _runAutoCompaction so the post-compaction continuation runner (and other waiters) serialize against auto/threshold/overflow/requested compaction, not just manual compact(). - Identity-guard the success path of the continuation runner so a cancelled runner cannot forget continuation messages that a replacement settlement still owns (busy/error paths already did). * fix(coding-agent): recheck refine apply before dispatching post-compaction continue A refine() call could enter its apply phase (which disconnects the agent event listener) between the runner's top-of-loop _waitForRefineIdle() and agent.continue(), losing the continuation's messages. Recheck _refineInFlight under the commit fence like pauses/_compactionOperation; the path from that recheck to agent.continue() is synchronous, mirroring the final refine barrier used by normal turn dispatch. * fix(coding-agent): release the continuation runner's idle wait on cancel A cancelled post-compaction continuation left its runner parked inside waitForIdle when the pump was suspended with queued actions: the wait was not raced against the settlement like its neighbors, so the runner re-registered a session-input checkpoint waiter on every notify. The leaked waiter kept hasPendingAdmissionWaiters true and blocked daemon passivation until an unrelated resume. waitForIdle's loop now takes an optional settlement: the suspended-queue park races the settlement promise, deregisters its waiter on loss, and the loop exits once the settlement is superseded. The runner uses the settlement-scoped variant; public waitForIdle is unchanged.