feat(dialog): 상세 팝업 SuperportDetailDialog 통합

- SuperportDetailDialog 위젯과 showSuperportDetailDialog 헬퍼를 추가하고 metadata/섹션 패턴을 표준화

- 결재/재고/마스터 각 상세 다이얼로그를 dialogs 디렉터리에 신설하고 기존 페이지를 신규 팝업으로 전환

- SuperportTable 행 선택과 우편번호 검색 다이얼로그 onRowTap 보정을 통해 헤더 오프셋 버그를 제거

- 상세 다이얼로그 및 트랜잭션/상세 뷰 전용 위젯 테스트와 tester_extensions 유틸을 추가하여 회귀를 방지

- detail_dialog_unification_plan.md로 작업 배경과 필드 통합 계획을 문서화

test/features/masters/user/presentation/pages/user_page_test.dart

@@ -1,3 +1,5 @@
+import 'dart:ui';
+
 import 'package:flutter/material.dart';
 import 'package:flutter_dotenv/flutter_dotenv.dart';
 import 'package:flutter_test/flutter_test.dart';
@@ -5,6 +7,7 @@ import 'package:get_it/get_it.dart';
 import 'package:mocktail/mocktail.dart';
 import 'package:shadcn_ui/shadcn_ui.dart';
 
+import '../../../../../helpers/tester_extensions.dart';
 import 'package:superport_v2/core/common/models/paginated_result.dart';
 import 'package:superport_v2/core/permissions/permission_manager.dart';
 import 'package:superport_v2/features/masters/group/domain/entities/group.dart';
@@ -14,6 +17,7 @@ import 'package:superport_v2/features/masters/group_permission/domain/repositori
 import 'package:superport_v2/features/masters/user/domain/entities/user.dart';
 import 'package:superport_v2/features/masters/user/domain/repositories/user_repository.dart';
 import 'package:superport_v2/features/masters/user/presentation/pages/user_page.dart';
+import 'package:superport_v2/widgets/components/superport_dialog.dart';
 
 class _MockUserRepository extends Mock implements UserRepository {}
 
@@ -191,7 +195,7 @@ void main() {
 
       await tester.tap(find.text('신규 등록'));
       await tester.pumpAndSettle();
-      await tester.tap(find.text('등록'));
+      await tester.tapShadButton('등록', settle: false);
       await tester.pump();
 
       expect(find.text('사번을 입력하세요.'), findsOneWidget);
@@ -259,7 +263,7 @@ void main() {
       await tester.tap(find.text('신규 등록'));
       await tester.pumpAndSettle();
 
-      final dialog = find.byType(Dialog);
+      final dialog = find.byType(SuperportDialog);
       await tester.enterText(
         find.byKey(const ValueKey('user_form_employee')),
         'A010',
@@ -298,8 +302,7 @@ void main() {
       await tester.tap(adminOption.first, warnIfMissed: false);
       await tester.pumpAndSettle();
 
-      await tester.tap(find.text('등록'));
-      await tester.pumpAndSettle();
+      await tester.tapShadButton('등록');
 
       expect(capturedInput, isNotNull);
       expect(capturedInput?.employeeNo, 'A010');
@@ -307,7 +310,7 @@ void main() {
       expect(capturedInput?.forcePasswordChange, isTrue);
       expect(capturedInput?.email, 'new@superport.com');
       expect(capturedInput?.mobileNo, '010-1111-2222');
-      expect(find.byType(Dialog), findsNothing);
+      expect(find.byType(SuperportDialog), findsNothing);
       expect(find.text('A010'), findsOneWidget);
       verify(() => userRepository.create(any())).called(1);
     });
@@ -344,7 +347,7 @@ void main() {
       await tester.tap(find.text('신규 등록'));
       await tester.pumpAndSettle();
 
-      final dialog = find.byType(Dialog);
+      final dialog = find.byType(SuperportDialog);
       await tester.enterText(
         find.byKey(const ValueKey('user_form_employee')),
         'A011',
@@ -381,14 +384,14 @@ void main() {
       await tester.tap(find.text('관리자', skipOffstage: false).first);
       await tester.pumpAndSettle();
 
-      await tester.tap(find.text('등록'));
+      await tester.tapShadButton('등록', settle: false);
       await tester.pump();
 
       expect(find.textContaining('최소 8자 이상 입력해야 합니다.'), findsOneWidget);
       verifyNever(() => userRepository.create(any()));
     });
 
-    testWidgets('비밀번호 재설정 버튼을 통해 확인 후 API 호출', (tester) async {
+    testWidgets('상세 팝업에서 비밀번호 재설정 액션 수행', (tester) async {
       final view = tester.view;
       view.physicalSize = const Size(1280, 800);
       view.devicePixelRatio = 1.0;
@@ -432,20 +435,37 @@ void main() {
       await tester.pumpWidget(_buildApp(const UserPage()));
       await tester.pumpAndSettle();
 
-      final resetFinder = find
-          .widgetWithIcon(ShadButton, LucideIcons.refreshCcw)
-          .first;
-      final resetButton = tester.widget<ShadButton>(resetFinder);
-      resetButton.onPressed?.call();
+      final rowFinder = find.text('A001');
+      expect(rowFinder, findsOneWidget);
+
+      final rowRect = tester.getRect(rowFinder);
+      await tester.tapAt(
+        rowRect.center,
+        kind: PointerDeviceKind.mouse,
+      );
       await tester.pumpAndSettle();
 
-      expect(find.byType(Dialog), findsOneWidget);
-      expect(find.text('재설정'), findsOneWidget);
-      await tester.tap(find.text('재설정'));
+      expect(find.byType(SuperportDialog), findsOneWidget);
+
+      await tester.tap(find.text('보안'));
+      await tester.pumpAndSettle();
+
+      final resetButton =
+          find.widgetWithText(ShadButton, '비밀번호 재설정').first;
+      await tester.ensureVisible(resetButton);
+      await tester.tap(resetButton, warnIfMissed: false);
+      await tester.pumpAndSettle();
+
+      expect(find.text('비밀번호 재설정'), findsWidgets);
+
+      final confirmButton =
+          find.widgetWithText(ShadButton, '재설정').last;
+      await tester.ensureVisible(confirmButton);
+      await tester.tap(confirmButton, warnIfMissed: false);
       await tester.pumpAndSettle();
 
       verify(() => userRepository.resetPassword(1)).called(1);
-      expect(find.text('비밀번호 재설정'), findsNothing);
+      expect(find.byType(SuperportDialog), findsNothing);
     });
   });
 }