fix: 修复 duo-practice-report.vue 语法错误

移除多余的 try-catch 块

frontend/src/views/trainee/duo-practice-report.vue

@@ -343,12 +343,9 @@ const loadReport = async () => {
       ]
     }
   }
-  } catch (error) {
+  
-    console.error('加载报告失败:', error)
-  } finally {
   isLoading.value = false
 }
-}
 
 onMounted(() => {
   loadReport()