Deduplicate cluster config

modules/host-groups/cluster.nix

@@ -0,0 +1,32 @@
+{ config, pkgs, ... }:
+
+{
+  imports = [
+    # Users
+    ../../users/cluster-admin/cluster-admin.nix
+
+    # System Configuration
+    ../system/cpu-amd.nix
+    ../system/fonts.nix
+    ../system/gpu-amd.nix
+    ../system/home-manager-settings.nix
+    ../system/internationalization.nix
+    ../system/networking.nix
+    ../system/nix-settings.nix
+    ../system/security.nix
+    ../system/systemd-boot.nix
+
+    # Application Groups
+    ../application-groups/system-utilities-cluster.nix
+  ];
+
+  time.timeZone = "America/Los_Angeles";
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "25.11"; # Did you read the comment?
+}