refactor(service): 重构模型网关服务结构

consts/public/public.go

@@ -6,6 +6,14 @@ const (
 	CallModeStream = 2 // 流式调用
 )
 
+const (
+	TaskStatusPending    = 0 // 排队中
+	TaskStatusRunning    = 1 // 执行中
+	TaskStatusSuccess    = 2 // 成功
+	TaskStatusFailed     = 3 // 失败
+	TaskStatusDownloaded = 4 // 已下载
+)
+
 const (
 	BuildTypePrompt = 1 //提示词构建
 	BuildTypeNode   = 2 //节点构建