feat: Add GitHub star button with live counter in Hero

- Add "Star on GitHub" button below CTAs
- Include live star count badge from shields.io
- GitHub icon + star icon with yellow highlight

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: Prot10

website/src/components/Hero.astro

@@ -53,6 +53,29 @@
         </a>
       </div>
 
+      <!-- GitHub Star Button -->
+      <div class="mt-6 flex items-center justify-center gap-3 animate-slide-up" style="animation-delay: 0.25s;">
+        <a
+          href="https://github.com/Prot10/MyMacCleaner"
+          target="_blank"
+          rel="noopener noreferrer"
+          class="inline-flex items-center gap-2 px-4 py-2 rounded-lg bg-white/10 hover:bg-white/15 border border-white/20 text-white text-sm font-medium transition-all duration-200 hover:-translate-y-0.5"
+        >
+          <svg class="w-5 h-5" fill="currentColor" viewBox="0 0 24 24">
+            <path fill-rule="evenodd" d="M12 2C6.477 2 2 6.484 2 12.017c0 4.425 2.865 8.18 6.839 9.504.5.092.682-.217.682-.483 0-.237-.008-.868-.013-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.029-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.202 2.398.1 2.651.64.7 1.028 1.595 1.028 2.688 0 3.848-2.339 4.695-4.566 4.943.359.309.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.019 10.019 0 0022 12.017C22 6.484 17.522 2 12 2z" clip-rule="evenodd" />
+          </svg>
+          <svg class="w-4 h-4 text-yellow-400" fill="currentColor" viewBox="0 0 24 24">
+            <path d="M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z" />
+          </svg>
+          Star on GitHub
+        </a>
+        <img
+          src="https://img.shields.io/github/stars/Prot10/MyMacCleaner?style=social"
+          alt="GitHub stars"
+          class="h-5"
+        />
+      </div>
+
       <!-- Stats -->
       <div class="mt-16 grid grid-cols-3 gap-8 max-w-lg mx-auto animate-fade-in" style="animation-delay: 0.3s;">
         <div>