feat: 重构节点上下文与并发执行逻辑

重构GetNodeContextContent返回类型为切片，修复并发竞态与协程泄漏问题；回调改用OSS文件获取结果；调整节点输入上传时序

workflow/service/flow/lambda_node_util.go

@@ -258,16 +258,15 @@ func waitGatewayResult(ctx context.Context, taskId string) (map[string]any, erro
 	if task.State == 3 || !g.IsEmpty(task.ErrorMsg) {
 		return nil, fmt.Errorf("模型执行失败：%s", task.ErrorMsg)
 	}
-	if g.IsEmpty(task.Messages) {
+	if g.IsEmpty(task.OssFile) {
 		return nil, fmt.Errorf("模型返回结果为空")
 	}
 	// 获取远程文件内容
-	//file, err := GetFileBytesFromURL(ctx, task.OssFile)
-	//if err != nil {
-	//	return nil, err
-	//}
-	//task.Messages = gconv.Map(file)
-	return task.Messages, nil
+	file, err := GetFileBytesFromURL(ctx, task.OssFile)
+	if err != nil {
+		return nil, err
+	}
+	return gconv.Map(file), nil
 }
 
 // updateTokenCount updates the token count in node execution
@@ -296,6 +295,9 @@ func GetModelResult(ctx context.Context, sessionId string, nodeInput *flowDto.No
 	if err != nil {
 		return nil, err
 	}
+	if composeResult.Status != "success" {
+		return nil, fmt.Errorf("模型提示词构建错误")
+	}
 
 	modelInfo, err := GetModelInfo(ctx, &flowDto.GetModelInfoReq{ModelName: nodeInput.Config.ModelConfig.ModelName})
 	if err != nil {
@@ -345,31 +347,41 @@ func GetModelResult(ctx context.Context, sessionId string, nodeInput *flowDto.No
 			taskIdList := make([]string, len(composeResult.Messages.Rounds))
 
 			for idx, item := range composeResult.Messages.Rounds {
-				var taskId string
-				taskId, err = createGatewayTaskOnly(ctx, composeResult.EpicycleId, nodeInput.Config.ModelConfig.ModelName, item)
+				taskId, err := createGatewayTaskOnly(ctx, composeResult.EpicycleId, nodeInput.Config.ModelConfig.ModelName, item)
 				if err != nil {
 					return nil, err
 				}
 				taskIdList[idx] = taskId
 			}
 
+			// 全局共享子上下文，实现一处报错全部终止
+			subCtx, globalCancel := context.WithCancel(ctx)
+			defer globalCancel() // 函数退出兜底释放
+
 			var wg sync.WaitGroup
 			errChan := make(chan error, len(taskIdList))
 
+			// 加互斥锁保护结果map
+			var mu sync.Mutex
+
 			for idx, taskId := range taskIdList {
 				wg.Add(1)
 
 				go func(idx int, taskId string) {
 					defer wg.Done()
 
-					var taskResult map[string]any
-					taskResult, err = waitGatewayResult(ctx, taskId)
+					taskResult, err := waitGatewayResult(subCtx, taskId)
 					if err != nil {
 						errChan <- err
+						globalCancel() // 全局取消，所有协程收到ctx取消信号快速退出
 						return
 					}
 
+					// 加锁写入map，解决并发竞态
+					mu.Lock()
 					mapTaskResult[idx] = taskResult
+					mu.Unlock()
+
 					updateTokenCount(ctx, nodeInput.NodeExecutionId, modelInfo.Model.ResponseTokenField, taskResult)
 				}(idx, taskId)
 			}
@@ -377,8 +389,15 @@ func GetModelResult(ctx context.Context, sessionId string, nodeInput *flowDto.No
 			wg.Wait()
 			close(errChan)
 
-			if len(errChan) > 0 {
-				return nil, <-errChan
+			// 收集全部错误，而非只读一条
+			var errs []error
+			for len(errChan) > 0 {
+				errs = append(errs, <-errChan)
+			}
+
+			if len(errs) > 0 {
+				// 返回第一个错误；如需汇总所有错误可拼接
+				return nil, errs[0]
 			}
 		}
 	} else {
@@ -490,16 +509,17 @@ func VideoConcat(ctx context.Context, videoUrls []string) (r any, err error) {
 }
 
 func GetFileBytesFromURL(ctx context.Context, fileUrl string) ([]byte, error) {
+	newS := strings.ReplaceAll(fileUrl, "http://cdn.redpowerfuture.com", g.Cfg().MustGet(ctx, "filePrefix").String())
 	// 使用 GoFrame 客户端（自带超时、追踪、日志等能力）
-	resp, err := g.Client().Get(ctx, fileUrl)
+	resp, err := g.Client().Get(ctx, newS)
 	if err != nil {
-		return nil, gerror.Wrapf(err, "failed to request url: %s", fileUrl)
+		return nil, gerror.Wrapf(err, "failed to request url: %s", newS)
 	}
 	defer resp.Close()
 
 	// 校验状态码
 	if resp.StatusCode != http.StatusOK {
-		return nil, gerror.Newf("request failed with status code: %d, url: %s", resp.StatusCode, fileUrl)
+		return nil, gerror.Newf("request failed with status code: %d, url: %s", resp.StatusCode, newS)
 	}
 
 	// 读取全部内容