Update Astro configuration to use Fastify adapter and include prefetch integration

- Replaced the Node adapter with Fastify for improved performance.
- Added the @astrojs/prefetch integration to enhance resource loading.
- Updated server settings to adjust logging level and minification options.
- Modified package.json to include new dependencies for Fastify and prefetch.

server.js

@@ -0,0 +1,22 @@
+import express from 'express';
+import compression from 'compression';
+import { handler } from './dist/server/entry.mjs';
+import path from 'path';
+import { fileURLToPath } from 'url';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const app = express();
+const PORT = process.env.PORT || 3000;
+
+// Enable gzip/brotli compression
+app.use(compression());
+
+// Serve static assets from the dist/client directory
+app.use(express.static(path.join(__dirname, 'dist/client')));
+
+// Handle all SSR requests with Astro's handler
+app.all('*', handler);
+
+app.listen(PORT, () => {
+  console.log(`Server running with compression on http://localhost:${PORT}`);
+});