feat: add RSS feed integration for blog

Add official @astrojs/rss integration to enable RSS feed subscription:
- Install @astrojs/rss package
- Create RSS endpoint at /rss.xml with blog posts
- Add RSS autodiscovery meta tag in Layout
- Update site URL from clawd.bot to openclaw.ai in config

RSS feed includes post titles, descriptions, dates, authors, and categories.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

astro.config.mjs

@@ -1,7 +1,7 @@
 import { defineConfig } from 'astro/config';
 
 export default defineConfig({
-  site: 'https://clawd.bot',
+  site: 'https://openclaw.ai',
   output: 'static',
   build: {
     assets: 'assets'

package.json

@@ -14,6 +14,7 @@
     ]
   },
   "dependencies": {
+    "@astrojs/rss": "^4.0.15",
     "@lucide/astro": "^0.563.0",
     "@vercel/analytics": "^1.6.1",
     "@vercel/speed-insights": "^1.3.1",

src/layouts/Layout.astro

@@ -26,6 +26,7 @@ const {
     <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32.png" />
     <link rel="apple-touch-icon" href="/apple-touch-icon.png" />
     <link rel="canonical" href={canonicalUrl} />
+    <link rel="alternate" type="application/rss+xml" title="OpenClaw Blog" href="/rss.xml" />
 
     <!-- Open Graph -->
     <meta property="og:title" content={title} />

src/pages/rss.xml.js

@@ -0,0 +1,23 @@
+import rss from '@astrojs/rss';
+import { getCollection } from 'astro:content';
+
+export async function GET(context) {
+  const posts = await getCollection('blog', ({ data }) => !data.draft);
+
+  return rss({
+    title: 'OpenClaw Blog',
+    description: 'Updates and news from OpenClaw — The AI that actually does things',
+    site: context.site,
+    items: posts
+      .sort((a, b) => b.data.date.valueOf() - a.data.date.valueOf())
+      .map((post) => ({
+        title: post.data.title,
+        description: post.data.description,
+        pubDate: post.data.date,
+        link: `/blog/${post.slug}/`,
+        author: `${post.data.authorHandle}@x.com (${post.data.author})`,
+        categories: post.data.tags,
+      })),
+    customData: `<language>en-us</language>`,
+  });
+}