feat: 新增主动拉取与多类型回调功能

- 新增 ActivePull 实体、DAO、DTO 及 Service，支持主动拉取任务管理
- 新增 ComposeCallback、VideoCallback、HttpNodeCallback 多类型回调接口
- FlowExecution 增加 NodeGroupId 和 TotalTokens 字段，支持节点组追踪与 Token 统计
- ExecutedNodes 结构由字符串列表改为包含执行状态的节点对象列表
- 重构回调通知机制，统一 Notify 函数调用
- 优化输出项类型判断逻辑，新增文件类型标识

workflow/service/active_pull/active_pull_service.go

@@ -0,0 +1,101 @@
+package pull
+
+import (
+	pullDao "ai-agent/workflow/dao/pull"
+	pullDto "ai-agent/workflow/model/dto/pull"
+	"context"
+
+	"github.com/gogf/gf/v2/util/gconv"
+)
+
+var ActivePullService = &activePullService{}
+
+type activePullService struct{}
+
+func (s *activePullService) Create(ctx context.Context, req *pullDto.CreateActivePullReq) (res *pullDto.CreateActivePullRes, err error) {
+	id, err := pullDao.ActivePullDao.Insert(ctx, req)
+	if err != nil {
+		return
+	}
+	return &pullDto.CreateActivePullRes{Id: id}, nil
+}
+
+func (s *activePullService) Update(ctx context.Context, req *pullDto.UpdateActivePullReq) (err error) {
+	_, err = pullDao.ActivePullDao.Update(ctx, req)
+	return
+}
+
+func (s *activePullService) Delete(ctx context.Context, req *pullDto.DeleteActivePullReq) (err error) {
+	_, err = pullDao.ActivePullDao.Delete(ctx, req)
+	return
+}
+
+//func (s *activePullService) AllList(ctx context.Context) (err error) {
+//	ctx = context.WithValue(ctx, "user", &beans.User{
+//		UserName: "admin",
+//	})
+//	for {
+//		select {
+//		case <-ctx.Done():
+//			return ctx.Err()
+//		default:
+//		}
+//
+//		var list []*entity.ActivePull
+//		list, _, err = pullDao.ActivePullDao.ListNative(ctx, &pullDto.ListActivePullReq{})
+//		if err != nil {
+//			g.Log().Error(ctx, "AllList query failed: %v", err)
+//			time.Sleep(time.Second * 3)
+//			continue
+//		}
+//
+//		// Get all active pull tasks and check each one for results
+//		for _, item := range list {
+//			var result map[string]any
+//			result, err = flow.PullTaskResult(ctx, item.RequestParament, item.Extension)
+//			if err != nil {
+//				g.Log().Error(ctx, "PullTaskResult failed for item %d: %v", item.Id, err)
+//				continue
+//			}
+//			if !g.IsEmpty(result) {
+//				// Find the task ID that matches the creation pattern
+//				// When created in CreateGatewayTask (flow/lambda_node_util.go),
+//				// the last parameter value extracted from the response becomes the waiting task ID
+//				var id string
+//				if taskId, ok := item.RequestParament["task_id"]; ok {
+//					id = gconv.String(taskId)
+//				} else if requestId, ok := item.RequestParament["id"]; ok {
+//					id = gconv.String(requestId)
+//				} else if jobId, ok := item.RequestParament["job_id"]; ok {
+//					id = gconv.String(jobId)
+//				} else {
+//					// Fallback to original behavior: use last value (matches creation logic)
+//					for _, v := range item.RequestParament {
+//						id = gconv.String(v)
+//					}
+//				}
+//				if id != "" {
+//					flow.Notify(id, result)
+//					// Delete after successful notification
+//					_, _ = pullDao.ActivePullDao.Delete(ctx, &pullDto.DeleteActivePullReq{Id: item.Id})
+//				} else {
+//					g.Log().Warning(ctx, "AllList: could not extract task ID for item %d", item.Id)
+//				}
+//			}
+//		}
+//
+//		time.Sleep(time.Second * 10)
+//	}
+//}
+
+func (s *activePullService) List(ctx context.Context, req *pullDto.ListActivePullReq) (res *pullDto.ListActivePullRes, err error) {
+	list, total, err := pullDao.ActivePullDao.List(ctx, req)
+	if err != nil {
+		return nil, err
+	}
+	res = &pullDto.ListActivePullRes{
+		Total: total,
+	}
+	err = gconv.Struct(list, &res.List)
+	return
+}