Initial commit: Shopify storefront Next.js template

Next.js 16 + React 19 storefront template with Shopify Storefront API
integration, Tailwind v4, and shadcn/ui components.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0111qSr3KopyGRsJ6LznR1xZ

components/About.tsx

@@ -0,0 +1,13 @@
+import React from 'react';
+
+const About: React.FC = () => {
+  return (
+    <div className="text-center">
+      <h1 className="text-5xl font-bold text-black mb-8" style={{fontFamily: 'Space Grotesk, sans-serif'}}>
+        About Page
+      </h1>
+    </div>
+  );
+};
+
+export default About;