- Add [incusos-lab:managed] description marker to created VMs so cleanup
can distinguish script-managed VMs from unmanaged ones
- Add --force-cleanup flag to override the management marker check
- Add incusos/TESTING.md with detailed test scenario, authentication
setup (API token with minimum privileges), and troubleshooting reference
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>