Investigate budget data issues

Investigate why budget and expense cards are not displaying correctly and why budget is showing as 0 on other pages.

src/components/BudgetTabContent.tsx

@@ -58,6 +58,7 @@ const BudgetTabContent: React.FC<BudgetTabContentProps> = ({
   // 카테고리 예산 저장
   const handleSaveCategoryBudgets = () => {
     const totalBudget = calculateTotalBudget();
+    console.log('카테고리 예산 저장 및 총 예산 설정:', totalBudget, categoryBudgets);
     onSaveBudget(totalBudget, categoryBudgets);
     setShowBudgetInput(false);
   };