建议聊天消息界面增加回滚功能

[xianshiyue0432]

建议聊天消息界面增加回滚功能，在每条消息下增加回滚按钮，如果出现问题，可以将修改的文件和代码回滚到聊天界面任意消息点。

[studyingyelloduck]

确实，顶一下，希望作者大大看到

[esengine]

Thanks for the bump — this one's on the radar.

The plan is session-scoped, in-process checkpoints (Cursor-style), not auto-commits to your git history. Each turn snapshots the files Reasonix is about to touch (plus a one-shot snapshot at reasonix code launch if the workspace is dirty), so you can roll back to any message point without polluting git log or fighting with your own uncommitted work. Snapshots live for the session and are pruned on exit.

I'd rather ship this once than ship a git-based version I'd then have to rip out, so it'll land in iterations. Tracking it in #407 — that issue has the full proposal (per-turn auto-snapshot, post-hoc snapshot after destructive run_command, /restore $ID to roll back). Subscribe there for PR updates.