fix: 类型问题

src/components/shared/ScoringPanelWithConfirm.vue

@@ -166,7 +166,7 @@ const onSubmit = (data: ExtractApiResponse<'getQuestionStruct'>) => {
       if (!props.showLimitTime) return
 
       // 更新分数端评卷时间
-      const markDelay = questionInfo.value.markDelay
+      const markDelay = questionInfo.value?.markDelay
         ? (JSON.parse(questionInfo.value.markDelay) as MarkDelayItem[])
         : []
       const getMarkLevelSpeedLimit = (score: number): number => {