feat: Refactor code structure and optimize performance across multiple modules

mobile-apps/staff-app/lib/features/profile/benefits/domain/entities/benefit_entity.dart

@@ -0,0 +1,48 @@
+import 'package:flutter/foundation.dart';
+import 'package:krow/features/profile/benefits/domain/entities/benefit_record_entity.dart';
+
+@immutable
+class BenefitEntity {
+  const BenefitEntity({
+    required this.name,
+    required this.requirement,
+    required this.requiredHours,
+    required this.currentHours,
+    required this.isClaimed,
+    required this.info,
+    required this.history,
+  });
+
+  final String name;
+  final String requirement;
+  final int requiredHours;
+  final int currentHours;
+  final bool isClaimed;
+  final String info;
+  final List<BenefitRecordEntity> history;
+
+  double get progress {
+    final progress = currentHours / requiredHours;
+    return progress > 1 ? 1 : progress;
+  }
+
+  BenefitEntity copyWith({
+    String? name,
+    String? requirement,
+    int? requiredHours,
+    int? currentHours,
+    bool? isClaimed,
+    String? info,
+    List<BenefitRecordEntity>? history,
+  }) {
+    return BenefitEntity(
+      name: name ?? this.name,
+      requirement: requirement ?? this.requirement,
+      requiredHours: requiredHours ?? this.requiredHours,
+      currentHours: currentHours ?? this.currentHours,
+      isClaimed: isClaimed ?? this.isClaimed,
+      info: info ?? this.info,
+      history: history ?? this.history,
+    );
+  }
+}

mobile-apps/staff-app/lib/features/profile/benefits/domain/entities/benefit_record_entity.dart

@@ -0,0 +1,11 @@
+import 'package:flutter/foundation.dart';
+
+@immutable
+class BenefitRecordEntity {
+  const BenefitRecordEntity({required this.createdAt, required this.status});
+
+  final DateTime createdAt;
+  final RecordStatus status;
+}
+
+enum RecordStatus { pending, submitted }