계정 정보 다이얼로그 추가 및 전체 목록 페치 개선

lib/features/masters/user/presentation/controllers/user_controller.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/foundation.dart';
-import 'package:superport_v2/core/common/models/paginated_result.dart';
 import 'package:superport_v2/core/network/failure.dart';
+import 'package:superport_v2/core/common/models/paginated_result.dart';
+import 'package:superport_v2/core/common/utils/pagination_utils.dart';
 
 import '../../../../../core/permissions/permission_manager.dart';
 import '../../../group/domain/entities/group.dart';
@@ -55,8 +56,11 @@ class UserController extends ChangeNotifier {
     _isLoadingGroups = true;
     notifyListeners();
     try {
-      final response = await _groupRepository.list(page: 1, pageSize: 100);
-      _groups = response.items;
+      final groups = await fetchAllPaginatedItems<Group>(
+        request: (page, pageSize) =>
+            _groupRepository.list(page: page, pageSize: pageSize),
+      );
+      _groups = groups;
     } catch (error) {
       final failure = Failure.from(error);
       _errorMessage = failure.describe();
@@ -72,13 +76,24 @@ class UserController extends ChangeNotifier {
     _errorMessage = null;
     notifyListeners();
     try {
+      final previous = _result;
+      final int resolvedPage;
+      if (page < 1) {
+        resolvedPage = 1;
+      } else if (previous != null && previous.pageSize > 0) {
+        final calculated = (previous.total / previous.pageSize).ceil();
+        final maxPage = calculated < 1 ? 1 : calculated;
+        resolvedPage = page > maxPage ? maxPage : page;
+      } else {
+        resolvedPage = page;
+      }
       final isActive = switch (_statusFilter) {
         UserStatusFilter.all => null,
         UserStatusFilter.activeOnly => true,
         UserStatusFilter.inactiveOnly => false,
       };
       final response = await _userRepository.list(
-        page: page,
+        page: resolvedPage,
         pageSize: _result?.pageSize ?? 20,
         query: _query.isEmpty ? null : _query,
         groupId: _groupFilter,