chore: add azure static web app deployment config

package.json

@@ -22,6 +22,7 @@
   },
   "packageManager": "pnpm@10.7.1+sha512.2d92c86b7928dc8284f53494fb4201f983da65f0fb4f0d40baafa5cf628fa31dae3e5968f12466f17df7e97310e30f343a648baea1b9b350685dafafffdf5808",
   "devDependencies": {
+    "@azure/static-web-apps-cli": "^2.0.6",
     "@types/node": "^22.15.3"
   }
 }

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'
+        }
+    });
+}

swa-cli.config.json

@@ -0,0 +1,14 @@
+{
+  "$schema": "https://aka.ms/azure/static-web-apps-cli/schema",
+  "configurations": {
+    "mercury": {
+      "appLocation": ".",
+      "outputLocation": "dist",
+      "appBuildCommand": "pnpm run build",
+      "run": "pnpm run dev",
+      "appDevserverUrl": "http://localhost:4321",
+      "appName": "mercury",
+      "resourceGroup": "mercury-rg"
+    }
+  }
+}