grd-firstboot aborts before enabling RDP because it shells out to openssl to
generate the TLS certificate, and the minimal image did not include the openssl
CLI. Add it. Also enable sshd so the headless host is reachable without RDP.
- Move Kanidm/flatpak/finalize.d/sshd files to images/shared/{files,repos}
and have build.sh overlay them for every image.
- fedora-remote: aggressive hardware trim (no firmware, no kernel-modules-extra,
no non-QEMU guest agents), keep + enable qemu-guest-agent (Proxmox).
- Fixes the missing package-list (release step) for fedora-remote.
New image built from upstream base-atomic (no desktop), adding only gnome-shell
+ gdm + gnome-remote-desktop + pipewire/portal + foot + Flatpak + Kanidm.
recommends=false to stay lean. Configures GNOME Remote Desktop headless remote
login on first boot (TLS + credentials + enable). Firefox preinstalled as a
per-user Flatpak. Add it to the CI matrix and prune both images.