- Add 'agent-reach skill --install/--uninstall' command for explicit skill management
- Make 'agent-reach doctor' auto-install skill if not present (fixes#154)
- Add format_xhs_result() to strip bloated XHS JSON to essential fields (fixes#134)
- Add 'agent-reach format xhs' CLI command (pipe mcporter output to clean it)
- Update SKILL.md with XHS formatter usage tip
- Add tests for both features (11 new tests, 73/73 total pass)
Co-authored-by: Panniantong <panniantong@users.noreply.github.com>
