The bot was granted a redact/mod power level in the review room, so it can now
clear a resolved thread entirely, not just the card: redact_thread redacts the
card root then scans recent history for its m.thread replies (the human's yes/no
+ any bot messages) and redacts those too, so decided threads drop out of the
threads view, not only the main timeline. Drops the in-thread confirmation on a
successful decision (the thread clearing is the ack; a confirmation would keep
the thread alive). redact_resolved.py extended to also clear replies of already-
resolved threads for the one-time backfill. Bot-only; no s9pk change.
Cards decided before the auto-redact behavior shipped are already 'closed' in
the CRM, so the bot's to_close sweep never redacts them. redact_resolved.py walks
the review room, keeps cards still pending (CRM 'open' list), and redacts the
rest. Dry-run by default; --apply to act. Run via docker compose on the Spark.
Keysat