perf: seo google config

apps/fronted/public/robots.txt

@@ -0,0 +1,5 @@
+User-agent: *
+Allow: /
+
+# Sitemap
+Sitemap: https://magicv.art/sitemap.xml

apps/fronted/public/sitemap.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
+        xmlns:xhtml="http://www.w3.org/1999/xhtml">
+  <url>
+    <loc>https://magicv.art/en</loc>
+    <xhtml:link rel="alternate" hreflang="en-US" href="https://magicv.art/en"/>
+    <xhtml:link rel="alternate" hreflang="zh-CN" href="https://magicv.art/zh"/>
+    <changefreq>daily</changefreq>
+    <priority>1.0</priority>
+  </url>
+  <url>
+    <loc>https://magicv.art/zh</loc>
+    <xhtml:link rel="alternate" hreflang="en-US" href="https://magicv.art/en"/>
+    <xhtml:link rel="alternate" hreflang="zh-CN" href="https://magicv.art/zh"/>
+    <changefreq>daily</changefreq>
+    <priority>1.0</priority>
+  </url>
+</urlset>

apps/fronted/src/app/layout.tsx

@@ -1,10 +1,26 @@
 import { ReactNode } from "react";
+import { Metadata } from "next";
 import "./globals.css";
 
 type Props = {
   children: ReactNode;
 };
 
+export const metadata: Metadata = {
+  metadataBase: new URL("https://magicv.art"),
+  robots: {
+    index: true,
+    follow: true,
+    googleBot: {
+      index: true,
+      follow: true,
+      "max-video-preview": -1,
+      "max-image-preview": "large",
+      "max-snippet": -1,
+    },
+  },
+};
+
 export default function RootLayout({ children }: Props) {
   return children;
 }