Detect crew/ prefix in polecatName and use crewSessionName() instead
of polecat session manager. This produces correct session names like
gt-beads-crew-dave instead of gt-beads-p-crew/dave.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>