Prepare production deployment

src/routes/sitemap.xml/+server.ts

@@ -0,0 +1,30 @@
+import { posts } from '$lib/blog/posts';
+import { canonical } from '$lib/config/site';
+
+const staticPages = ['/', '/about', '/blog', '/dashboard'];
+
+export const GET = () => {
+	const urls = [
+		...staticPages.map((path) => ({ loc: canonical(path), lastmod: undefined })),
+		...posts.map((post) => ({ loc: canonical(`/blog/${post.slug}`), lastmod: post.date }))
+	];
+
+	const body = `<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+${urls
+	.map(
+		(url) => `	<url>
+		<loc>${url.loc}</loc>${url.lastmod ? `\n		<lastmod>${url.lastmod}</lastmod>` : ''}
+	</url>`
+	)
+	.join('\n')}
+</urlset>
+`;
+
+	return new Response(body, {
+		headers: {
+			'content-type': 'application/xml; charset=utf-8',
+			'cache-control': 'public, max-age=3600'
+		}
+	});
+};