- Added maintainer directive flow with config fields, mention parsing, and directive prompt templates.
- Propagated directive payloads into webhook handling, tasks, and worker prompts for triage/review actions.
- Added admission/dedupe caps and `INACTIVE_EVENT_STATES` checks to prevent duplicate or active-event requeue/retry conflicts.
- Refactored push/PR host tooling to use guarded branch checks and reject unsafe identity or ancestry mismatches.
can1357