invite signup check code's owner

resources/lang/zh_CN/invite.php

@@ -0,0 +1,5 @@
+<?php
+
+return [
+    'invalid_inviter' => '非法邀请者！此邀请码已被禁用！',
+];

resources/lang/zh_CN/nexus.php

@@ -0,0 +1,5 @@
+<?php
+
+return [
+    'invalid_argument' => '参数错误',
+];