The minimal base (recommends off) was missing session infrastructure and one
maintained service actively broke the greeter, so RDP clients saw only a white
screen:
- add dbus-daemon: gdm-wayland-session runs it for the greeter session bus
- add systemd-pam: pam_systemd starts the per-user systemd manager
- nsswitch: shadow must include systemd so pam_unix can resolve GDM 50's
dynamic gdm-greeter user (Fedora 44 ships 'files systemd')
- mask uresourced: its resource tuning makes user@<uid>.service fail with
'Failed to spawn executor', leaving no systemd user bus for gnome-session
- 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.