Frontend first draft

frontend/pshared/lib/api/requests/change_role.dart

@@ -0,0 +1,18 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'change_role.g.dart';
+
+
+@JsonSerializable(explicitToJson: true)
+class ChangeRole {
+  final String accountRef;
+  final String newRoleDescriptionRef;
+
+  const ChangeRole({
+    required this.accountRef, 
+    required this.newRoleDescriptionRef, 
+  });
+
+  factory ChangeRole.fromJson(Map<String, dynamic> json) => _$ChangeRoleFromJson(json);
+  Map<String, dynamic> toJson() => _$ChangeRoleToJson(this);
+}