Fix TS2308 error in index.ts

The module './BudgetContext' already exports a member named 'BudgetContextType'. Explicitly re-export to resolve the ambiguity.

src/contexts/budget/index.ts

@@ -1,9 +1,18 @@
 
 export * from './BudgetContext';
-export * from './types';
 export * from './budgetUtils';
 export * from './storageUtils';
 
+// types.ts에서 BudgetPeriod와 다른 타입들을 내보내지만,
+// BudgetContextType은 이미 BudgetContext에서 내보내고 있으므로 제외
+export type { 
+  BudgetPeriod, 
+  BudgetPeriodData, 
+  BudgetData, 
+  CategoryBudget, 
+  Transaction 
+} from './types';
+
 // Export hooks
 export * from './hooks/useTransactionState';
 export * from './hooks/useBudgetDataState';