gastown/crew/dennis 0db2bda6e6 feat(deacon): add zombie-scan command for tmux-verified process cleanup ...

Unlike cleanup-orphans (which uses TTY="?" detection), zombie-scan uses
tmux verification: it checks if each Claude process is in an active
tmux session by comparing against actual pane PIDs.

A process is a zombie if:
- It's a Claude/codex process
- It's NOT the pane PID of any active tmux session
- It's NOT a child of any pane PID
- It's older than 60 seconds

Also refactors:
- getChildPIDs() with ps fallback when pgrep unavailable
- State file handling with file locking for concurrent access

Usage:
  gt deacon zombie-scan           # Find and kill zombies
  gt deacon zombie-scan --dry-run # Just list zombies

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

2026-01-20 14:19:29 -08:00

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