Adds supervision for dispatched dogs that may get stuck.
The new step (between dog-pool-maintenance and orphan-check):
- Lists dogs in "working" state
- Checks work duration vs plugin timeout (default 10m)
- Decision matrix based on how long overdue:
- < 2x timeout: log warning, check next cycle
- 2x-5x timeout: file death warrant
- > 5x timeout: force clear + escalate to Mayor
- Tracks chronic failures for repeat offenders
This closes the supervision gap where dogs could hang forever
after being dispatched via `gt dog dispatch --plugin`.
Closes: gt-s4dp3
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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