Upgrade to flutter_rust_bridge V2

lib/common/rust/downloader.dart

@@ -0,0 +1,64 @@
+// This file is automatically generated, so please do not edit it.
+// Generated by `flutter_rust_bridge`@ 2.0.0-dev.23.
+
+// ignore_for_file: invalid_use_of_internal_member, unused_import, unnecessary_import
+
+import 'frb_generated.dart';
+import 'package:flutter_rust_bridge/flutter_rust_bridge_for_generated.dart';
+import 'package:freezed_annotation/freezed_annotation.dart' hide protected;
+part 'downloader.freezed.dart';
+
+class DownloadCallbackData {
+  final String id;
+  final int total;
+  final int progress;
+  final int speed;
+  final MyDownloaderStatus status;
+
+  const DownloadCallbackData({
+    required this.id,
+    required this.total,
+    required this.progress,
+    required this.speed,
+    required this.status,
+  });
+
+  @override
+  int get hashCode =>
+      id.hashCode ^
+      total.hashCode ^
+      progress.hashCode ^
+      speed.hashCode ^
+      status.hashCode;
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is DownloadCallbackData &&
+          runtimeType == other.runtimeType &&
+          id == other.id &&
+          total == other.total &&
+          progress == other.progress &&
+          speed == other.speed &&
+          status == other.status;
+}
+
+@freezed
+sealed class MyDownloaderStatus with _$MyDownloaderStatus {
+  const factory MyDownloaderStatus.noStart() = MyDownloaderStatus_NoStart;
+  const factory MyDownloaderStatus.running() = MyDownloaderStatus_Running;
+  const factory MyDownloaderStatus.pending(
+    MyNetworkItemPendingType field0,
+  ) = MyDownloaderStatus_Pending;
+  const factory MyDownloaderStatus.error(
+    String field0,
+  ) = MyDownloaderStatus_Error;
+  const factory MyDownloaderStatus.finished() = MyDownloaderStatus_Finished;
+}
+
+enum MyNetworkItemPendingType {
+  queueUp,
+  starting,
+  stopping,
+  initializing,
+}