refactor(app): 优化邮件模板

app/Models/User.php

@@ -73,7 +73,8 @@ class User extends Authenticatable implements Auditable
         'company_date',
         'deleted_at',
         'no',
-        'from'
+        'from',
+        'open_course_types'
     ];
     protected $appends = ['is_vip_text', 'is_schoolmate_text', 'appointment_total', 'name'];