fix problems

express-project/routes/admin.js

@@ -1684,7 +1684,7 @@ router.get('/monitor/activities', adminAuth, async (req, res) => {
         nickname: user.nickname,
         avatar: user.avatar,
         title: `新用户注册`,
-        content: `用户 ${user.nickname} (${user.user_id}) 注册了账号`,
+        content: `员工 ${user.nickname} (${user.user_id}) 加入了公司`,
         target_id: user.id,
         created_at: user.created_at
       })