优化考试工坊前端界面

shudao-vue-frontend/src/views/ExamWorkshop.vue

@@ -1000,10 +1000,12 @@ const handleHistoryItem = async (historyItem) => {
     });
     console.log(response.data)
     if (response.statusCode === 200 && response.data && response.data.length > 0) {
-      const latestRecord = response.data[response.data.length - 1];
+      const latestRecord = [...response.data].reverse().find(record => record.type === 'ai' && record.content)
+        || [...response.data].reverse().find(record => record.content)
+        || response.data[response.data.length - 1];
       console.log('获取到的试卷数据:', latestRecord);
       console.log('试卷数据结构:', JSON.stringify(latestRecord, null, 2));
-      currentTime.value = formatTime(latestRecord.created_at)
+      currentTime.value = latestRecord?.created_at ? formatTime(latestRecord.created_at) : historyItem.time
       if (latestRecord && latestRecord.content) {
         try {
           const examData = extractExamDataFromContent(latestRecord.content);
@@ -1011,22 +1013,18 @@ const handleHistoryItem = async (historyItem) => {
           showExamDetail.value = true;
         } catch (error) {
           console.error('解析试卷数据失败:', error);
-          showExamDetail.value = true;
-          currentTime.value = historyItem.time;
+          ElMessage.error('恢复试卷失败，请稍后重试');
         }
       } else {
-        showExamDetail.value = true;
-        currentTime.value = historyItem.time;
+        ElMessage.error('暂无可恢复的试卷内容');
       }
     } else {
       console.error('获取历史记录详情失败:', response);
-      showExamDetail.value = true;
-      currentTime.value = historyItem.time;
+      ElMessage.error('获取历史记录详情失败，请稍后重试');
     }
   } catch (error) {
     console.error('获取历史记录详情失败:', error);
-    showExamDetail.value = true;
-    currentTime.value = historyItem.time;
+    ElMessage.error('获取历史记录详情失败，请稍后重试');
   } finally {
     isLoadingHistoryItem.value = false;
   }