Fix data initialization and toast issues

- Ensure toast notifications disappear after data initialization.
- Resolve issues with expense items not displaying on the expense page.
- Fix graph display issues on the analytics screen.
- Prevent login screen from appearing after data initialization.

src/components/analytics/MonthlyComparisonChart.tsx

@@ -31,7 +31,10 @@ const MonthlyComparisonChart: React.FC<MonthlyComparisonChartProps> = ({
     return value;
   };
 
-  // Empty state component
+  // 데이터 확인 로깅
+  console.log('MonthlyComparisonChart 데이터:', monthlyData);
+  
+  // EmptyGraphState 컴포넌트: 데이터가 없을 때 표시
   const EmptyGraphState = () => (
     <div className="flex flex-col items-center justify-center h-48 text-gray-400">
       <p>데이터가 없습니다</p>
@@ -39,9 +42,14 @@ const MonthlyComparisonChart: React.FC<MonthlyComparisonChartProps> = ({
     </div>
   );
 
+  // 데이터 여부 확인 로직 개선 - 데이터가 비어있거나 모든 값이 0인 경우도 고려
+  const hasValidData = monthlyData && 
+                      monthlyData.length > 0 && 
+                      monthlyData.some(item => item.budget > 0 || item.expense > 0);
+
   return (
     <div className="neuro-card h-72 w-full">
-      {!isEmpty && monthlyData.length > 0 && monthlyData.some(item => item.budget > 0 || item.expense > 0) ? (
+      {hasValidData ? (
         <ResponsiveContainer width="100%" height="100%">
           <BarChart data={monthlyData} margin={{
             top: 20,