the previous change kept dormant subscriber threads running forever, meaning thread count could only go up. dormant now correctly stops the worker thread (freeing resources) while preserving the DB row for discovery to re-activate later. reconciliation loop queries only active hosts — dormant hosts wait for requestCrawl. separated "don't forget the host" (DB row persists) from "don't stop the thread" (thread exits on dormancy). removed unused listReconnectableHosts. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>