Refactor.

common/server-node.nix

@@ -0,0 +1,14 @@
+{ pkgs, ... }:
+{
+  # Server profile: Cluster-enabled system for server deployments
+  # Extends cluster-node with server-specific configurations
+  # Future: Add bare NixOS services here (mysql, postgres, etc.) when migrating from Nomad
+  imports = [
+    ./cluster-node.nix
+  ];
+
+  # Server-specific configurations can be added here
+  # Example (for future use):
+  # services.mysql.enable = lib.mkDefault false;
+  # services.postgresql.enable = lib.mkDefault false;
+}