Threads sandbox updates through OverrideTurnContext for active turn Passes computed sandbox type into safety/exec
Add ephemeral threads capabilities. Only exposed through the `app-server` v2 The idea is to disable the rollout recorder for those threads.
Shouldn't cause behavioral change
## Summary Support updating Personality mid-Thread via UserTurn/OverwriteTurn. This is explicitly unused by the clients so far, to simplify PRs - app-server and tui implementations will be follow-ups. ## Testing - [x] added integration tests
- Add additional instructions when they are available - Make sure to update them on change either UserInput or UserTurn