Add sitemap, robots.txt, and improve homepage SEO

app/page.tsx

@@ -1,30 +1,25 @@
 import type { Metadata } from "next";
-import { redirect } from "next/navigation";
 
+import { AuthRedirect } from "@/components/auth-redirect";
 import { Footer } from "@/components/site/footer";
 import { HomeHero } from "@/components/site/home-hero";
-import { getSession } from "@/lib/auth";
 
 export const metadata: Metadata = {
   title: "Free Google sign-in for Ghost blogs",
   description: "Give Ghost members Google sign-in without magic links."
 };
 
-export default async function HomePage({
+export default function HomePage({
   searchParams
 }: {
   searchParams?: { toast?: string | string[] };
 }) {
-  const session = await getSession();
-  if (session) {
-    redirect("/dashboard");
-  }
-
   const toast =
     typeof searchParams?.toast === "string" ? searchParams.toast : null;
 
   return (
     <main className="flex min-h-[calc(100vh-4rem)] flex-col justify-between">
+      <AuthRedirect />
       <HomeHero
         googleClientId={process.env.GOOGLE_OAUTH_CLIENT_ID ?? ""}
         toast={toast}

app/robots.ts

@@ -0,0 +1,17 @@
+import type { MetadataRoute } from "next";
+
+export default function robots(): MetadataRoute.Robots {
+  const baseUrl =
+    process.env.TRIVET_PUBLIC_BASE_URL ?? "https://trivet.contraption.co";
+
+  return {
+    rules: [
+      {
+        userAgent: "*",
+        allow: "/",
+        disallow: ["/api/", "/dashboard", "/settings", "/onboarding/"]
+      }
+    ],
+    sitemap: `${baseUrl}/sitemap.xml`
+  };
+}

app/sitemap.ts

@@ -0,0 +1,15 @@
+import type { MetadataRoute } from "next";
+
+export default function sitemap(): MetadataRoute.Sitemap {
+  const baseUrl =
+    process.env.TRIVET_PUBLIC_BASE_URL ?? "https://trivet.contraption.co";
+
+  return [
+    {
+      url: baseUrl,
+      lastModified: new Date(),
+      changeFrequency: "monthly",
+      priority: 1
+    }
+  ];
+}

components/auth-redirect.tsx

@@ -0,0 +1,30 @@
+"use client";
+
+import { useEffect } from "react";
+import { useRouter } from "next/navigation";
+
+/**
+ * Client-side component that redirects authenticated users to the dashboard.
+ * Used on the homepage to allow static rendering while still handling auth redirects.
+ */
+export function AuthRedirect() {
+  const router = useRouter();
+
+  useEffect(() => {
+    const checkAuth = async () => {
+      try {
+        const response = await fetch("/api/session");
+        const data = (await response.json()) as { authenticated: boolean };
+        if (data.authenticated) {
+          router.replace("/dashboard");
+        }
+      } catch {
+        // Silently fail - user stays on homepage
+      }
+    };
+
+    void checkAuth();
+  }, [router]);
+
+  return null;
+}