Fix data initialization issues

Addresses problems with budget display and data reset:
- Ensures budget data is correctly displayed after initialization.
- Fixes issue where daily and weekly budget data were missing.
- Corrects data reset to properly clear transaction data.

src/contexts/budget/hooks/useExtendedBudgetUpdate.ts

@@ -28,6 +28,18 @@ export const useExtendedBudgetUpdate = (
           delete newCategoryBudgets['교통비'];
         }
         
+        // 식비 값이 있으면 음식으로 통합
+        if (newCategoryBudgets['식비'] && !newCategoryBudgets['음식']) {
+          newCategoryBudgets['음식'] = newCategoryBudgets['식비'];
+          delete newCategoryBudgets['식비'];
+        }
+        
+        // 생활비 값이 있으면 쇼핑으로 통합
+        if (newCategoryBudgets['생활비'] && !newCategoryBudgets['쇼핑']) {
+          newCategoryBudgets['쇼핑'] = newCategoryBudgets['생활비'];
+          delete newCategoryBudgets['생활비'];
+        }
+        
         // 카테고리 예산 저장
         updateCategoryBudgets(newCategoryBudgets);