feat(club-002): club PWA: join flow, digital card and installable shell

project/frontend/src/app/manifest.ts

@@ -0,0 +1,30 @@
+import type { MetadataRoute } from 'next';
+
+export default function manifest(): MetadataRoute.Manifest {
+  return {
+    name: 'Club Mercado de Vida',
+    short_name: 'Club MdV',
+    description: 'Tarjeta digital y acceso rápido al Club de Clientes de Mercado de Vida.',
+    start_url: '/club',
+    scope: '/',
+    display: 'standalone',
+    orientation: 'portrait',
+    background_color: '#F5F9EF',
+    theme_color: '#70AD47',
+    categories: ['shopping', 'lifestyle'],
+    icons: [
+      {
+        src: '/images/club-icon-192.png',
+        sizes: '192x192',
+        type: 'image/png',
+        purpose: 'maskable',
+      },
+      {
+        src: '/images/club-icon-512.png',
+        sizes: '512x512',
+        type: 'image/png',
+        purpose: 'maskable',
+      },
+    ],
+  };
+}