Improved backfill gate timeout settings and added comprehensive diagnostic logging.
Changes
- Set forceAfter to 90s and timeout to 150s to ensure force-acquire is reachable.
- Introduced scan summary logging for total candidates, eligible, confirmed no transcript, and deferred cooldown counts.
- Implemented per-meeting progress logging during the backfill loop for better tracking.
- Added a completion summary log that aggregates all relevant counters.