Previously, polecat startup used hardcoded paths for BEADS_DIR that
didn't follow redirects for repos with tracked beads. This meant
polecats working in worktrees (where .beads/redirect points to the
actual beads location) would use the wrong beads directory.
Fixed locations:
- daemon.go: polecat startup now uses ResolveBeadsDir
- polecat/session_manager.go: session startup now uses ResolveBeadsDir
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>