Prompt before reverting thread checkpoint

- Add a confirmation dialog before checkpoint revert
- Warn that newer messages and turn diffs will be discarded
- Cancel revert when the user does not confirm
ec5c3c32cdJulius Marminge committed on 2/19/2026, 5:59:17 AM· committed by Julius Marmingeparent5209967
1 file changedLine totals unavailable