feat: Add admin page to view all bottles from all users

- Create /admin/bottles page with comprehensive bottle overview
- Show stats: total bottles, total users, avg rating, top distilleries
- AdminBottlesList with search, filter by user/category, sorting
- Display bottle images, ratings, user info, and dates
- Add 'All Bottles' link to admin dashboard

src/app/admin/page.tsx

@@ -123,6 +123,12 @@ export default async function AdminPage() {
                         >
                             Manage Banners
                         </Link>
+                        <Link
+                            href="/admin/bottles"
+                            className="px-4 py-2 bg-orange-600 hover:bg-orange-700 text-white rounded-xl font-bold transition-colors"
+                        >
+                            All Bottles
+                        </Link>
                         <Link
                             href="/"
                             className="px-4 py-2 bg-zinc-900 dark:bg-zinc-100 text-white dark:text-zinc-900 rounded-xl font-bold hover:bg-zinc-800 transition-colors"