adding open_webui to jeeves

systems/jeeves/services/open_webui.nix

@@ -0,0 +1,10 @@
+let
+  vars = import ../vars.nix;
+in
+{
+  services.open-webui = {
+    stateDir = "${vars.services}/open_webui/";
+    enable = true;
+    openFirewall = true;
+  };
+}