fix: enable flake-self-attrs for lix compatibility

hosts/lazyworkhorse/configuration.nix

@@ -9,7 +9,7 @@
   hoardingcow-mount.enable = true;
 
   # Flakesss
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix.settings.experimental-features = [ "nix-command" "flakes" "flake-self-attrs" ];
   nix.settings.trusted-users = [ "root" "gortium" ];
 
   # Garbage collection
@@ -249,13 +249,13 @@
         mode = "0600";
         path = "/etc/ssh/ssh_host_ed25519_key";
       };
-      # n8n_ssh_key = {
-      #   file = ../../secrets/n8n_ssh_key.age;
-      #   owner = "root";
-      #   group = "root";
-      #   mode = "0600";
-      #   path = "/home/n8n-worker/.ssh/n8n_ssh_key";
-      # };
+      ai_ssh_key = {
+        file = ../../secrets/ai_ssh_key.age;
+        owner = "root";
+        group = "root";
+        mode = "0600";
+        path = "/home/ai-worker/.ssh/ai_ssh_key";
+      };
       openclaw_gateway_token = {
         file = ../../secrets/openclaw_gateway_token.age;
         owner = "root";