feat(thunder): add offline download tool (#7673)

* feat(thunder): add offline download tool

* fix(thunder): improve error handling and parse file size in status response

---------

Co-authored-by: Andy Hsu <i@nn.ci>

internal/offline_download/tool/add.go

@@ -77,6 +77,10 @@ func AddURL(ctx context.Context, args *AddURLArgs) (task.TaskExtensionInfo, erro
 		tempDir = args.DstDirPath
 		// 防止将下载好的文件删除
 		deletePolicy = DeleteNever
+	case "thunder":
+		tempDir = args.DstDirPath
+		// 防止将下载好的文件删除
+		deletePolicy = DeleteNever
 	}
 
 	taskCreator, _ := ctx.Value("user").(*model.User) // taskCreator is nil when convert failed

internal/offline_download/tool/download.go

@@ -83,6 +83,9 @@ outer:
 	if t.tool.Name() == "pikpak" {
 		return nil
 	}
+	if t.tool.Name() == "thunder" {
+		return nil
+	}
 	if t.tool.Name() == "115 Cloud" {
 		// hack for 115
 		<-time.After(time.Second * 1)
@@ -161,6 +164,9 @@ func (t *DownloadTask) Complete() error {
 	if t.tool.Name() == "pikpak" {
 		return nil
 	}
+	if t.tool.Name() == "thunder" {
+		return nil
+	}
 	if t.tool.Name() == "115 Cloud" {
 		return nil
 	}