feat(storage): add enable option

modules/storage/default.nix

@@ -1,4 +1,10 @@
+{ lib, config, ... }:
+
 {
+  options.storage.enable = lib.mkEnableOption "storage";
+
+  config = lib.mkIf config.storage.enable {
     services.udisks2.enable = true;
     boot.zfs.forceImportRoot = false;
+  };
 }