Fix rendering issue

Addresses a problem where the screen was not rendering correctly.

src/components/transaction/TransactionAmount.tsx

@@ -7,11 +7,12 @@ interface TransactionAmountProps {
 }
 
 const TransactionAmount: React.FC<TransactionAmountProps> = ({ amount }) => {
+  // 금액을 한국 통화 형식으로 포맷팅 (소수점 제거)
   const formattedAmount = new Intl.NumberFormat('ko-KR', {
     style: 'currency',
     currency: 'KRW',
     maximumFractionDigits: 0
-  }).format(amount);
+  }).format(Math.abs(amount));
 
   return (
     <div className="flex items-center gap-1">