Implements gt polecat subcommands for managing polecats in rigs: - list: Show polecats with state, issue, and session status - add: Create new polecat with clone and work branch - remove: Delete polecat (checks for running session, uncommitted changes) - wake: Transition idle → active - sleep: Transition active → idle (checks for running session) Resolves: gt-u1j.17 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>