fix: WxSignQueryResult 缺少 change_type 和 operate_time 字段导致签约回调无法判断类型

[Copilot]

WxEntrustPapService.parseSignNotifyResult() 返回 WxSignQueryResult，但该类缺少 change_type 字段，导致调用方无法区分签约（ADD）和解约（DELETE）回调。

Changes

• WxSignQueryResult：新增 changeType（change_type）和 operateTime（operate_time）字段，并在 loadXml() 中补充解析逻辑

WxSignQueryResult result = wxEntrustPapService.parseSignNotifyResult(xmlData);

// 现在可以正确获取变更类型
if ("ADD".equals(result.getChangeType())) {
    // 签约回调
} else if ("DELETE".equals(result.getChangeType())) {
    // 解约回调
}

此改动向后兼容，WxSignQueryResult 的查询场景不受影响。

Original prompt

---

This section details on the original issue you should resolve

<issue_title>委托代扣签约回调 缺少change_type字段解析</issue_title>
<issue_description>

简要描述

委托代扣签约回调 缺少change_type字段解析，无法判断类型

模块版本情况

  <dependency>
        <groupId>com.github.binarywang</groupId>
        <artifactId>weixin-java-pay</artifactId>
        <version>4.8.0</version>
    </dependency>

</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes 委托代扣签约回调 缺少change_type字段解析 #3941

---

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[augmentcode]

🤖 Augment PR Summary

Summary: Fixes entrust (PAP) sign/un-sign callback parsing by adding missing fields to WxSignQueryResult.
Changes: Adds changeType (change_type) and operateTime (operate_time) and parses them in loadXml() so callers can distinguish ADD vs DELETE callbacks.

_{🤖 Was this summary useful? React with 👍 or 👎}

[augmentcode]

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Preserve all-args constructor binary compatibility

Adding new fields to this class changes the Lombok-generated @AllArgsConstructor signature, so downstream code compiled against the previous 11-argument constructor will hit NoSuchMethodError at runtime after upgrading this library jar. This is a backward-compatibility regression for consumers who instantiate WxSignQueryResult directly; consider keeping the old constructor explicitly (or avoiding a public all-args API) before adding new constructor parameters.

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[Copilot]

Pull request overview

本次 PR 修复微信支付委托代扣「签约/解约结果通知」解析结果中缺少 change_type 与 operate_time 的问题，使调用方能够区分签约（ADD）与解约（DELETE）回调类型，符合 SDK 在回调处理场景的字段完整性预期（关联 #3941）。

Changes:

• 为 WxSignQueryResult 新增 changeType(change_type)、operateTime(operate_time) 字段
• 在 WxSignQueryResult#loadXml() 中补充对上述字段的解析（覆盖 XmlConfig.fastMode=true 分支）

[Copilot]

该类使用了 Lombok 的 @AllArgsConstructor；新增 changeType/operateTime 字段会改变全参构造函数签名，导致依赖旧构造函数的调用方在编译期或运行期出现不兼容（NoSuchMethodError）。为保持向后兼容，建议显式补一个与旧字段列表一致的构造函数并标注 @deprecated（内部委托到新的全参构造），或移除/限制全参构造函数的对外暴露（例如改为 Builder）。

Suggested change

	/**
	* 兼容旧版本的构造函数（不包含 changeType、operateTime 字段）。
	* <p>
	* 新增字段后，为保持向后兼容而保留旧签名，内部委托到新的全参构造函数。
	*
	* @deprecated 建议使用包含所有字段的新构造函数或其他构建方式。
	*/
	@Deprecated
	public WxSignQueryResult(String contractId,
	String planId,
	Long requestSerial,
	String contractCode,
	String contractDisplayAccount,
	Integer contractState,
	String contractSignedTime,
	String contractExpiredTime,
	String contractTerminatedTime,
	Integer contractTerminatedMode,
	String contractTerminationRemark,
	String openId) {
	this(contractId, planId, requestSerial, contractCode, contractDisplayAccount,
	contractState, contractSignedTime, contractExpiredTime, contractTerminatedTime,
	contractTerminatedMode, contractTerminationRemark, openId, null, null);
	}

[Copilot]

新增字段的 XML 解析逻辑（change_type/operate_time）目前没有对应的单元测试覆盖。仓库中已存在 WxSignQueryResultTest 且会开启 XmlConfig.fastMode 覆盖 loadXml 分支，建议补充包含 change_type/operate_time 的回调 XML 样例并断言 changeType/operateTime 能被正确解析（同时可保留字段缺失时为 null 的断言）。