add "auth.role.reader": "阅读",

dashboard/src/locales/zh-Hans/auth/index.ts

@@ -7,7 +7,8 @@ const items = {
   "auth.role.student": "学生",
   "auth.role.assistant": "助理老师",
   "auth.role.unknown": "未知",
-  "auth.role.delete": "删除",
+  "auth.role.delete": "已删除",
+  "auth.role.reader": "阅读",
   "auth.type.user": "用户",
   "auth.type.group": "群组",
 };