Follow-up on the salvaged MoA restore fix:
- Extract the finally-block restore into _restore_moa_one_shot() so the
behavior is unit-testable without re-implementing it, and so the gateway
/moa handler and the finally block share one implementation.
- Restore the load-bearing #28686 zombie-eviction comment above
_release_running_agent_state that the original diff dropped.
- Rewrite the tests to call the real _restore_moa_one_shot helper (the
originals re-implemented the restore logic inline, so they passed
regardless of the production code).
teknium1
4e0788783b