Add 👕 emoji favicon to rSwag

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/app/layout.tsx

@@ -29,6 +29,9 @@ export async function generateMetadata(): Promise<Metadata> {
   return {
     title: `${name} — ${tagline}`,
     description: space?.description || "Design and order custom merchandise.",
+    icons: {
+      icon: "data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>👕</text></svg>",
+    },
   };
 }