Give each route its own title and canonical, and add robots.txt plus a sitemap.

The root layout was stamping the homepage title and production root onto every page. Routes now supply a page segment through one em-dash template, canonicals follow the request path, and non-production hosts disallow crawlers.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/(admin)/layout.tsx

@@ -1,8 +1,14 @@
+import type { Metadata } from "next";
 import { Suspense, type ReactNode } from "react";
 import ConditionalNavigation from "../components/navigation/ConditionalNavigation";
 import { MessagesProvider } from "../contexts/MessagesContext";
 import { AuthModalProvider } from "../contexts/AuthModalContext";
 import messages from "../../messages/en/index";
+import { NO_INDEX_ROBOTS } from "../../lib/siteMetadata";
+
+export const metadata: Metadata = {
+  robots: NO_INDEX_ROBOTS,
+};
 
 // `force-dynamic` removed in favor of `experimental.cacheComponents` (Next 16).
 // See `(app)/layout.tsx` for the matching `<Suspense fallback={null}>` rationale

app/(admin)/monitor/page.tsx

@@ -1,5 +1,12 @@
+import type { Metadata } from "next";
+import messages from "../../../messages/en/index";
+import { routeMetadata } from "../../../lib/siteMetadata";
 import MonitorPageContent from "./MonitorPageContent";
 
+export const metadata: Metadata = routeMetadata("/monitor", {
+  title: messages.metadata.monitor.title,
+});
+
 export default function MonitorPage() {
   return <MonitorPageContent />;
 }