feat: add Solana USDT/USDC support and refine admin payouts UI

app/admin/page.tsx

@@ -13,6 +13,7 @@ import { tr } from 'date-fns/locale';
 import Link from 'next/link';
 import TransactionChart from '@/components/admin/TransactionChart';
 import QueryRangeSelector from '@/components/admin/QueryRangeSelector';
+import PlatformTreasuryWidget from '@/components/admin/PlatformTreasuryWidget';
 
 async function getStats(rangeDays: number = 30) {
     const result = await db.query('SELECT * FROM transactions ORDER BY created_at DESC');
@@ -143,6 +144,9 @@ export default async function AdminDashboard(props: {
                 </div>
             </div>
 
+            {/* Platform Treasury Status - High Visibility */}
+            <PlatformTreasuryWidget />
+
             {/* Middle Section: Charts */}
             <div className="bg-white p-8 rounded-3xl border border-gray-100 shadow-sm">
                 <div className="flex justify-between items-center mb-10">