Rootless Docker requires loginctl enable-linger and systemctl --user, which need systemd as PID 1 inside the container. Updated all platform entries to use /lib/systemd/systemd (or /usr/lib/systemd/systemd for Arch) as the container command instead of sleep infinity. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>