feat(user): 添加用户登出功能

- 在 userController.js 中实现 logout 方法，销毁用户会话
- 在 routes/index.js 中添加 logout 路由

controllers/userController.js

@@ -107,6 +107,20 @@ exports.login = [
   }
 ]
 
+exports.logout = async (req, res) => {
+  try {
+    req.session.destroy()
+    return FetchResult.formatResult(res, HTTP_STATUS.OK, messages.user.logout)
+  } catch (err) {
+    logger('Error logging out: ', err)
+    return FetchResult.formatResult(
+      res,
+      HTTP_STATUS.INTERNAL_SERVER_ERROR,
+      'Internal server error'
+    )
+  }
+}
+
 exports.getUserExist = async (req, res) => {
   try {
     const { account } = req.query

routes/index.js

@@ -13,4 +13,6 @@ router.get('/', function (req, res) {
 
 router.post('/login', userController.login)
 
+router.post('/logout', userController.logout)
+
 module.exports = router