## Why
An interrupt or turn replacement can invalidate a pending-work wakeup while its turn context is being constructed. Task startup could then recreate a turn whose reservation was no longer active.
## What changed
- Recheck that the wakeup still owns the active turn reservation immediately before calling `start_task`, and return if it does not.
- Allow the remote-control re-enrollment test up to 45 seconds for the connection following reconnect backoff.
## Testing
Add a regression test that pauses wakeup context construction, processes an interrupt, and then resumes construction. It verifies that no additional turn starts and only the initial model request is sent.
GitOrigin-RevId: c857fdd9f0fac3790d35a95a1f21a6d41977bb29
