feat: add robot.txt and sitemap

src/app/robots.ts

@@ -0,0 +1,13 @@
+import { baseURL } from "@/constants";
+import { MetadataRoute } from "next";
+
+export default function robots(): MetadataRoute.Robots {
+  return {
+    rules: {
+      userAgent: "*",
+      allow: "/",
+      disallow: "/private/",
+    },
+    sitemap: `${baseURL}/sitemap.xml`,
+  };
+}

src/app/sitemap.ts

@@ -0,0 +1,19 @@
+import { baseURL } from "@/constants";
+import { MetadataRoute } from "next";
+
+export default function sitemap(): MetadataRoute.Sitemap {
+  return [
+    {
+      url: baseURL,
+    },
+    {
+      url: `${baseURL}/about`,
+    },
+    {
+      url: `${baseURL}/cv`,
+    },
+    {
+      url: `${baseURL}/posts`,
+    },
+  ];
+}