chore: add n8n-worker user and update authentication configuration

users/gortium.nix

@@ -1,17 +1,18 @@
 { pkgs, inputs, config, keys, ... }: {
   users.users.gortium = {
     isNormalUser = true;
-    extraGroups = [ "wheel" "docker" ]; # Enable ‘sudo’ for the user.
+    extraGroups = [ "wheel" "docker" "video" "render"];
+
     packages = with pkgs; [
       tree
       btop
+      nh
     ];
     shell = pkgs.zsh;
     openssh.authorizedKeys.keys = [
       keys.users.gortium.main
     ];
   };
-  programs.zsh.enable = true;
   security.sudo.extraRules = [
     {
       users = [ "gortium" ];

users/n8n-worker.nix

@@ -9,3 +9,4 @@
     ];
   };
   users.groups.n8n-worker = {};
+}