7fb9b9c581
- Add sshd-setup.sh: automated SSH setup inside container - Checks for systemd prerequisite - Creates non-root user (configurable via argument, fallback to 'kugetsu') - Configures sshd for key-only authentication - Configures passwordless sudo for the user - Enables and starts sshd via systemd - Add docs/kugetsu-setup.md: unified setup documentation - Container setup (Incus, Docker) - SSH setup (automated + manual steps) - Host-side port forwarding (Incus, firewall) - kugetsu installation - Usage guide - Remote access via SSH