feat: 修改管理员登陆提示错误信息.

backendApi/modules/v1/controllers/SiteController.php

@@ -165,7 +165,7 @@ class SiteController extends BaseController
     {
         $adminName = \Yii::$app->request->get('adminName');
 
-        \Yii::$app->cache->set('FAIL_NUMS:' . $adminName, 0);
+        \Yii::$app->cache->delete('FAIL_NUMS:' . $adminName);
 
         return static::notice(['data' => '登陆失败次数清空']);
     }