Roll back a config version

1. Open Admin → Config.
2. Select the path (gates.yaml, triage.yaml, a flow, and so on).
3. In Versions, click Revert on the version to restore.
4. Confirm the list shows that version as current.
5. Drive a session or Run C2 as needed. Cache is invalidated on revert.

There is no deploy. Repo files are unchanged. The doc site still shows the git copy until pnpm docs:gen after a commit.