When a stuck task's session is disposed but an in-flight bash subprocess
keeps running, the executor's Promise never resolves, so the requeue
finally block never fires and the task stays stranded in-progress
indefinitely (observed with FN-1269).
Add a 60s safety-net timer in markStuckAborted: if the task is still in
executing after the grace period, force-requeue it directly by clearing
the worktree, setting status=stuck-killed, moving to todo, and removing
it from the executing set so the scheduler can re-dispatch normally.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
0c845b97bc