Merge pull request '修复游客查看云脑列表页面报错' (#1042) from fix-969 into V20211213

Reviewed-on: https://git.openi.org.cn/OpenI/aiforge/pulls/1042
Reviewed-by: lewis <747342561@qq.com>

modules/cloudbrain/cloudbrain.go

@@ -53,6 +53,9 @@ func CanDeleteTrainJob(ctx *context.Context, job *models.Cloudbrain) bool {
 }
 
 func CanCreateOrDebugJob(ctx *context.Context) bool {
+	if !ctx.IsSigned {
+		return false
+	}
 	return ctx.Repo.CanWrite(models.UnitTypeCloudBrain)
 }