Restart provider sessions when runtime mode changes

- Persist `approvalPolicy` and `sandboxMode` on orchestration sessions
- Reuse existing sessions when runtime mode is unchanged
- Stop and recreate provider sessions when runtime mode settings change
- Add reactor tests for reuse vs restart behavior
718084065eJulius Marminge committed on 2/27/2026, 5:26:35 AM· committed by Julius Marmingeparent57dd091
4 files changedLine totals unavailable