feat: EK-723-92: 修改会员注册成功后，邮件发送的Welcome Message的内容.

common/helpers/Email.php

@@ -18,11 +18,13 @@ class Email
 
         $mailer = Yii::$app->mailer;
         $mailer->useFileTransport = false;
-        $mailer->compose()
+        $result = $mailer->compose()
             ->setFrom('eshop-noreply@elken.com')
             ->setTo($email)
             ->setSubject($subject)
             ->setHtmlBody($message)
             ->send();
+
+        LoggerTool::debug(json_encode([$subject, $message, $email, $userName, $password, $result]));
     }
 }