fix: Use native img tags for admin pages

- Replace next/image with native img tags in admin bottles, splits, tastings
- Remove hardcoded Supabase hostname from next.config.mjs
- Native img works with any hostname without config changes on deploy

src/app/admin/splits/AdminSplitsList.tsx

@@ -1,8 +1,7 @@
 'use client';
 
 import { useState, useMemo } from 'react';
-import { Search, User, Calendar, Share2, Users, Check, X, ExternalLink } from 'lucide-react';
-import Image from 'next/image';
+import { Search, User, Share2, Users, Check, X, ExternalLink } from 'lucide-react';
 import Link from 'next/link';
 
 interface Split {
@@ -120,19 +119,17 @@ export default function AdminSplitsList({ splits }: AdminSplitsListProps) {
                         <div
                             key={split.id}
                             className={`bg-zinc-900 rounded-2xl border overflow-hidden transition-colors ${split.is_active
-                                    ? 'border-zinc-800 hover:border-zinc-700'
-                                    : 'border-zinc-800/50 opacity-60'
+                                ? 'border-zinc-800 hover:border-zinc-700'
+                                : 'border-zinc-800/50 opacity-60'
                                 }`}
                         >
                             {/* Image */}
                             <div className="aspect-[16/9] relative bg-zinc-800">
                                 {split.bottle?.image_url ? (
-                                    <Image
+                                    <img
                                         src={split.bottle.image_url}
                                         alt={split.bottle.name || 'Bottle'}
-                                        fill
-                                        className="object-cover"
-                                        sizes="(max-width: 768px) 100vw, (max-width: 1200px) 50vw, 33vw"
+                                        className="absolute inset-0 w-full h-full object-cover"
                                     />
                                 ) : (
                                     <div className="absolute inset-0 flex items-center justify-center">
@@ -142,8 +139,8 @@ export default function AdminSplitsList({ splits }: AdminSplitsListProps) {
 
                                 {/* Status Badge */}
                                 <span className={`absolute top-2 left-2 px-2 py-1 text-[10px] font-bold rounded-lg flex items-center gap-1 ${split.is_active
-                                        ? 'bg-green-600/90 text-white'
-                                        : 'bg-zinc-700/90 text-zinc-300'
+                                    ? 'bg-green-600/90 text-white'
+                                    : 'bg-zinc-700/90 text-zinc-300'
                                     }`}>
                                     {split.is_active ? <Check size={10} /> : <X size={10} />}
                                     {split.is_active ? 'Active' : 'Closed'}