Gate setup and admin navigation

src/app/admin/page.tsx

@@ -1,11 +1,21 @@
 import { AppShell } from "@/components/app-shell";
 import { StatusBadge } from "@/components/status-badge";
 import { SYSTEM_PERMISSIONS } from "@/lib/access";
+import { requireCurrentUser, userIsAdmin } from "@/lib/session";
+import { requireInitialSetup } from "@/lib/setup";
 import { rooms } from "@/lib/sample-data";
+import { redirect } from "next/navigation";
+
+export default async function AdminPage() {
+  await requireInitialSetup();
+  const user = await requireCurrentUser();
+
+  if (!userIsAdmin(user)) {
+    redirect("/dashboard");
+  }
 
-export default function AdminPage() {
   return (
-    <AppShell active="Admin">
+    <AppShell active="Admin" isAdmin>
       <header className="topbar">
         <div className="title-block">
           <h1>Admin</h1>