Fix type error in useTransactionEdit

The category value was not correctly typed, leading to a TypeScript error. This commit ensures that the category value is correctly typed as one of the allowed expense categories.

src/components/transaction/useTransactionEdit.ts

@@ -6,6 +6,7 @@ import { useBudget } from '@/contexts/budget/BudgetContext';
 import { toast } from '@/hooks/useToast.wrapper';
 import { manageTitleSuggestions } from '@/utils/userTitlePreferences';
 import { TransactionFormValues } from './TransactionFormFields';
+import { EXPENSE_CATEGORIES } from '@/constants/categoryIcons';
 
 export const useTransactionEdit = (
   transaction: Transaction,
@@ -15,11 +16,14 @@ export const useTransactionEdit = (
   const { updateTransaction, deleteTransaction } = useBudget();
 
   // React Hook Form 설정
+  // 카테고리 타입 오류 수정 - 타입 단언 적용
   const form = useForm<TransactionFormValues>({
     defaultValues: {
       title: transaction.title,
       amount: transaction.amount.toString(),
-      category: transaction.category,
+      category: EXPENSE_CATEGORIES.includes(transaction.category) 
+        ? (transaction.category as "음식" | "쇼핑" | "교통" | "기타") 
+        : "기타",
       paymentMethod: transaction.paymentMethod || '신용카드'
     }
   });