feat: flutter ui integration

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

@@ -0,0 +1,23 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'options.g.dart';
+
+@JsonSerializable()
+class Options {
+  String name;
+  String path;
+  int connections;
+  List<int> selectFiles;
+
+  Options({
+    required this.name,
+    required this.path,
+    required this.connections,
+    required this.selectFiles,
+  });
+
+  factory Options.fromJson(Map<String, dynamic> json) =>
+      _$OptionsFromJson(json);
+
+  Map<String, dynamic> toJson() => _$OptionsToJson(this);
+}