사용하지 않는 파일 정리 전 백업 (Phase 10 완료 후 상태)

lib/screens/overview/overview_screen.dart

@@ -1,16 +1,15 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
-import 'package:intl/intl.dart';
 import 'package:superport/screens/common/theme_shadcn.dart';
 import 'package:superport/screens/common/components/shadcn_components.dart';
 import 'package:superport/screens/overview/controllers/overview_controller.dart';
 // MockDataService 제거 - 실제 API 사용
 import 'package:superport/services/auth_service.dart';
 import 'package:superport/services/health_check_service.dart';
-import 'package:superport/core/widgets/auth_guard.dart';
 import 'package:superport/data/models/auth/auth_user.dart';
 import 'package:superport/screens/overview/widgets/license_expiry_alert.dart';
 import 'package:superport/screens/overview/widgets/statistics_card_grid.dart';
+import 'package:shadcn_ui/shadcn_ui.dart';
 
 /// shadcn/ui 스타일로 재설계된 대시보드 화면
 class OverviewScreen extends StatefulWidget {
@@ -328,7 +327,7 @@ class _OverviewScreenState extends State<OverviewScreen> {
     return FutureBuilder<AuthUser?>(
       future: context.read<AuthService>().getCurrentUser(),
       builder: (context, snapshot) {
-        final userRole = snapshot.data?.role?.toLowerCase() ?? '';
+        final userRole = snapshot.data?.role.toLowerCase() ?? '';
         final isAdminOrManager = userRole == 'admin' || userRole == 'manager';
         
         return Column(
@@ -371,19 +370,15 @@ class _OverviewScreenState extends State<OverviewScreen> {
                     mainAxisAlignment: MainAxisAlignment.spaceBetween,
                     children: [
                       Text('시스템 상태', style: ShadcnTheme.headingH4),
-                      IconButton(
-                        icon: _isHealthCheckLoading 
-                          ? SizedBox(
+                      ShadButton.ghost(
+                        onPressed: _isHealthCheckLoading ? null : _checkHealthStatus,
+                        child: _isHealthCheckLoading 
+                          ? const SizedBox(
                               width: 16,
                               height: 16,
-                              child: CircularProgressIndicator(
-                                strokeWidth: 2,
-                                valueColor: AlwaysStoppedAnimation<Color>(ShadcnTheme.primary),
-                              ),
+                              child: ShadProgress(),
                             )
                           : Icon(Icons.refresh, size: 20, color: ShadcnTheme.muted),
-                        onPressed: _isHealthCheckLoading ? null : _checkHealthStatus,
-                        tooltip: '새로고침',
                       ),
                     ],
                   ),
@@ -535,23 +530,6 @@ class _OverviewScreenState extends State<OverviewScreen> {
       ),
     );
   }
-
-  Widget _buildStatusItem(String label, String status) {
-    return Padding(
-      padding: const EdgeInsets.symmetric(vertical: 8),
-      child: Row(
-        mainAxisAlignment: MainAxisAlignment.spaceBetween,
-        children: [
-          Text(label, style: ShadcnTheme.bodyMedium),
-          ShadcnBadge(
-            text: status,
-            variant: ShadcnBadgeVariant.success,
-            size: ShadcnBadgeSize.small,
-          ),
-        ],
-      ),
-    );
-  }
   
   /// 헬스 상태 아이템 빌더
   Widget _buildHealthStatusItem(String label, Map<String, dynamic> statusInfo) {