사용자 마스터 UI 및 테스트 구현

lib/features/masters/group/domain/entities/group.dart

@@ -0,0 +1,43 @@
+class Group {
+  Group({
+    this.id,
+    required this.groupName,
+    this.isDefault = false,
+    this.isActive = true,
+    this.isDeleted = false,
+    this.note,
+    this.createdAt,
+    this.updatedAt,
+  });
+
+  final int? id;
+  final String groupName;
+  final bool isDefault;
+  final bool isActive;
+  final bool isDeleted;
+  final String? note;
+  final DateTime? createdAt;
+  final DateTime? updatedAt;
+
+  Group copyWith({
+    int? id,
+    String? groupName,
+    bool? isDefault,
+    bool? isActive,
+    bool? isDeleted,
+    String? note,
+    DateTime? createdAt,
+    DateTime? updatedAt,
+  }) {
+    return Group(
+      id: id ?? this.id,
+      groupName: groupName ?? this.groupName,
+      isDefault: isDefault ?? this.isDefault,
+      isActive: isActive ?? this.isActive,
+      isDeleted: isDeleted ?? this.isDeleted,
+      note: note ?? this.note,
+      createdAt: createdAt ?? this.createdAt,
+      updatedAt: updatedAt ?? this.updatedAt,
+    );
+  }
+}