refactor: code cleanup

core/entity/task.go

@@ -1,28 +1,9 @@
 package entity
 
 import (
-	"encoding/json"
 	"go.mongodb.org/mongo-driver/bson/primitive"
 )
 
-type TaskMessage struct {
-	Id    primitive.ObjectID `json:"id"`
-	Key   string             `json:"key"`
-	Cmd   string             `json:"cmd"`
-	Param string             `json:"param"`
-}
-
-func (m *TaskMessage) ToString() (string, error) {
-	data, err := json.Marshal(&m)
-	if err != nil {
-		return "", err
-	}
-	return string(data), err
-}
-
-type TaskRunOptions struct {
-}
-
 type StreamMessageTaskData struct {
 	TaskId  primitive.ObjectID `json:"task_id"`
 	Records []Result           `json:"data"`