feat: add twtxt support

src/pages/twtxt.txt.js

@@ -0,0 +1,17 @@
+import { getCollection } from 'astro:content';
+
+export async function GET(context) {
+    const posts = await getCollection('posts');
+    // Sort posts by date (newest first)
+    posts.sort((a, b) => new Date(b.data.pubDate).getTime() - new Date(a.data.pubDate).getTime());
+
+    const twtxt = posts.map(post => (
+        `${new Date(post.data.pubDate).toISOString()}\t${post.data.title} ${context.site}post/${post.slug}`
+    )).join('\n');
+
+    return new Response(twtxt, {
+        headers: {
+            'Content-Type': 'text/plain'
+        }
+    });
+}