added robots udn sitemap

src/app/robots.ts

@@ -0,0 +1,28 @@
+import type { MetadataRoute } from "next";
+
+function getSiteUrl() {
+  return process.env.NEXT_PUBLIC_SITE_URL ?? "https://mein-kitaplaner.de";
+}
+
+export default function robots(): MetadataRoute.Robots {
+  const siteUrl = getSiteUrl();
+
+  return {
+    rules: {
+      userAgent: "*",
+      allow: ["/", "/impressum", "/datenschutz"],
+      disallow: [
+        "/api/",
+        "/dashboard/",
+        "/invite/",
+        "/alert/",
+        "/login",
+        "/register",
+        "/onboarding/",
+        "/forbidden",
+      ],
+    },
+    sitemap: `${siteUrl}/sitemap.xml`,
+    host: siteUrl,
+  };
+}

src/app/sitemap.ts

@@ -0,0 +1,31 @@
+import type { MetadataRoute } from "next";
+
+function getSiteUrl() {
+  return process.env.NEXT_PUBLIC_SITE_URL ?? "https://mein-kitaplaner.de";
+}
+
+export default function sitemap(): MetadataRoute.Sitemap {
+  const siteUrl = getSiteUrl();
+  const lastModified = new Date();
+
+  return [
+    {
+      url: siteUrl,
+      lastModified,
+      changeFrequency: "weekly",
+      priority: 1,
+    },
+    {
+      url: `${siteUrl}/impressum`,
+      lastModified,
+      changeFrequency: "yearly",
+      priority: 0.2,
+    },
+    {
+      url: `${siteUrl}/datenschutz`,
+      lastModified,
+      changeFrequency: "yearly",
+      priority: 0.2,
+    },
+  ];
+}