Enables the previously-disabled game-servers module with a new 7DTD
container (vinanrra/7dtd-server) on ports 26900 TCP + 26900-26902 UDP.
A oneshot systemd service waits for LGSM's first install to drop
sdtdserver.xml, then patches in the server name, password, and
random-gen world before restarting the container. V-Rising is removed
— the module hadn't been imported, so this just drops dead code.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Consolidates V-Rising into the existing game-servers module instead of
a separate file. Also uncomments the game-servers import in common.nix
and adds UDP 9876/9877 to the shared firewall rules.
https://claude.ai/code/session_01Ays1x4CUUJE1jPLkeNMojV
