feat: add Product Hunt badge to website homepage

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: WebRouter

website/index.md

@@ -16,6 +16,12 @@ hero:
       text: Live Demo
       link: https://demo.webrouter.tech
 
+  <p align="center" style="margin-top: 1.5rem;">
+    <a href="https://www.producthunt.com/products/webrouter?embed=true&utm_source=badge-featured&utm_medium=badge&utm_campaign=badge-webrouter" target="_blank" rel="noopener noreferrer">
+      <img src="https://api.producthunt.com/widgets/embed-image/v1/featured.svg?post_id=1172912&theme=light&t=1781616650305" alt="WebRouter - More Than a Proxy. Your AI Backend. | Product Hunt" width="250" height="54" />
+    </a>
+  </p>
+
 features:
   - title: Smart Routing
     details: "Set model: auto and WebRouter picks the optimal model based on request complexity. Simple queries get fast/cheap models, complex reasoning gets powerful ones."