fix: 修复设备分类路径的可选链访问

src/views/maintenance/repair/components/RepairDetailsDialog.vue

@@ -64,7 +64,7 @@
             <span>设备分类：</span>
             <span>{{
               equipmentInfo.category
-                ? equipmentInfo.category.category.categoryLevelPath
+                ? equipmentInfo.category?.category?.categoryLevelPath
                 : ''
             }}</span>
           </el-col>
@@ -299,7 +299,7 @@
             <span>设备分类：</span>
             <span>{{
               equipmentInfo.category
-                ? equipmentInfo.category.categoryLevelPath
+                ? equipmentInfo.category?.category?.categoryLevelPath
                 : ''
             }}</span>
           </el-col>