feat: Refactor code structure and optimize performance across multiple modules

mobile-apps/staff-app/lib/features/profile/mobility/data/models/mobility_model.dart

@@ -0,0 +1,26 @@
+import 'package:flutter/foundation.dart';
+
+@immutable
+class MobilityModel {
+  const MobilityModel({
+    required this.hasACar,
+    required this.canRelocate,
+  });
+
+  factory MobilityModel.fromJson(Map<String, dynamic> json) {
+    return MobilityModel(
+      hasACar: json['has_car'] as bool? ?? false,
+      canRelocate: json['can_relocate'] as bool? ?? false,
+    );
+  }
+
+  final bool hasACar;
+  final bool canRelocate;
+
+  Map<String, dynamic> toJson() {
+    return {
+      'has_car': hasACar,
+      'can_relocate': canRelocate,
+    };
+  }
+}