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/(marketing)/rules/[id]/page.tsx

@@ -3,6 +3,7 @@ import { notFound } from "next/navigation";
 import messages from "../../../../messages/en/index";
 import { getPublicPublishedRuleById } from "../../../../lib/server/publishedRules";
 import { parsePublishedDocumentForCommunityRuleDisplay } from "../../../../lib/create/publishedDocumentToDisplaySections";
+import { routeMetadata } from "../../../../lib/siteMetadata";
 import CommunityRule from "../../../components/type/CommunityRule";
 import HeaderLockup from "../../../components/type/HeaderLockup";
 
@@ -25,22 +26,22 @@ export async function generateMetadata({
     typeof rule.summary === "string" && rule.summary.trim().length > 0
       ? rule.summary
       : undefined;
-  return {
+  return routeMetadata(`/rules/${rule.id}`, {
     title: rule.title,
     description,
     openGraph: {
       title: rule.title,
       description,
       type: "article",
-      url: `https://communityrule.com/rules/${rule.id}`,
-      siteName: "CommunityRule",
+      url: `/rules/${rule.id}`,
+      siteName: messages.metadata.siteName,
     },
     twitter: {
       card: "summary_large_image",
       title: rule.title,
       description,
     },
-  };
+  });
 }
 
 export default async function PublicRuleDetailPage({ params }: PageProps) {