Implements automatic nuke of polecats after completion:
- HandlePolecatDone: Auto-nukes immediately for ESCALATED/DEFERRED exits
(no pending MR) when cleanup_status=clean
- HandleMerged: Auto-nukes after verifying commit is on main and
cleanup_status=clean
- HandleLifecycleShutdown: Auto-nukes immediately since shutdown means
no pending work
Safety checks preserved:
- Verifies cleanup_status from agent bead (clean/has_uncommitted/etc)
- Verifies commit is on main before nuking
- Falls back to cleanup wisp if any check fails
New functions:
- NukePolecat(): Executes gt polecat nuke
- AutoNukeIfClean(): Checks safety and nukes if safe
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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