调用https://api.mch.weixin.qq.com/pay/contractorder接口实现H5的签约并支付，请求参数<xml><nonce_str>fabe940c5a655d7b8babb678c5831152</nonce_str><time_expire>20251112005005</time_expire><time_start>20251112003005</time_start><sign>78D559A01B0D22F5D2F9B8BE0C68332B</sign><mch_id>********</mch_id><body>会员月卡</body><notify_url>https://sandbox.yulek.net</notify_url><spbill_create_ip>157.162.122.200</spbill_create_ip><contract_display_account>kws0123</contract_display_account><request_serial>2025111210000002</request_serial><contract_appid>wxa1b2c3d5e6</contract_appid><device_info>WEB</device_info><out_trade_no>2025111210000001</out_trade_no><contract_code>407e2ca06729f8ffb13a936d44068516</contract_code><appid>wxa1b2c3d5e6</appid><total_fee>2</total_fee><trade_type>MWEB</trade_type><detail>续费月卡</detail><plan_id>123456</plan_id><contract_notify_url>https://sandbox.yulek.net</contract_notify_url><contract_mchid>********</contract_mchid><scene_info>{"h5_info":{"type":"Wap","wap_name":"ksGamer","wap_url":"https://adb.ksgame.com"}}</scene_info></xml>，响应如下：<xml><err_code><![CDATA[PARAM_ERROR]]></err_code>
<err_code_des><![CDATA[请求中含有未在API文档中定义的参数]]></err_code_des>
<nonce_str><![CDATA[Iw4squNs4j2YBMOm]]></nonce_str>
<result_code><![CDATA[FAIL]]></result_code>
<return_code><![CDATA[SUCCESS]]></return_code>
<return_msg><![CDATA[OK]]></return_msg>
<sign><![CDATA[81A74A39857D7602BBFE23B8D37D313A]]></sign>
</xml>。是什么原因呢？帮忙看一下。
支付中签约接口文档，没有定义 scene_info ，把这个去了试试
自己比对文档看自己多传了什么