feat: flutter ui integration

ui/flutter/lib/api/model/create_task.dart

@@ -0,0 +1,22 @@
+import 'package:json_annotation/json_annotation.dart';
+
+import 'options.dart';
+import 'resource.dart';
+
+part 'create_task.g.dart';
+
+@JsonSerializable(explicitToJson: true)
+class CreateTask {
+  Resource res;
+  Options? opts;
+
+  CreateTask({
+    required this.res,
+    this.opts,
+  });
+
+  factory CreateTask.fromJson(Map<String, dynamic> json) =>
+      _$CreateTaskFromJson(json);
+
+  Map<String, dynamic> toJson() => _$CreateTaskToJson(this);
+}