When the daemon disconnects, teardown stops the fast RPC worker without
draining its queued main-thread callbacks. The console busy gate was
released inside that callback, so a command whose callback was discarded
left the input disabled for the rest of the session.
- The busy gate now drops from an RAII guard at the end of the worker
job itself, so it is released however the job ends: success, error, or
a worker torn down undrained.
- The result is published to the console before the gate drops, so a
freed-up console always has the output queued.
- An unknown, non-std::exception failure is now caught and reported
instead of escaping the job.
User-visible: the Console input can no longer stay stuck disabled after
a reconnect.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>