- New lib/prereqs.sh: detects distro (Arch, Debian/Ubuntu, RHEL/Fedora,
openSUSE) and installs git + podman/docker if missing
- Podman preferred over docker; user chooses if neither present
- Docker install also enables systemd service and adds user to docker group
- README updated: prereqs table now shows auto-install support
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
