补充 WxCpKfEventMsg 的 rejectSwitch 字段映射

[Copilot]

WxCpKfEventMsg 缺少企业微信客服“拒收客户消息变更事件”中的 reject_switch 字段，导致该事件无法完整反序列化。此 PR 补齐事件模型字段，并增加对应回归用例以覆盖该事件载荷。

• 事件模型补齐

  • 在 WxCpKfEventMsg 中新增 rejectSwitch 属性
  • 使用 @SerializedName("reject_switch") 绑定企业微信返回字段
  • 保持现有事件模型结构不变，仅补充缺失字段映射

• 回归覆盖

  • 为 WxCpKfMsgListResp.fromJson(...) 增加客服事件 JSON 解析用例
  • 覆盖 reject_customer_msg_switch_change 事件场景
  • 校验 eventType、servicerUserId 和 rejectSwitch 的解析结果

• 示例

  @SerializedName("reject_switch")
  private Integer rejectSwitch;

  对应事件载荷示例：

  {
    "msgtype": "event",
    "event": {
      "event_type": "reject_customer_msg_switch_change",
      "servicer_userid": "Zhangsan",
      "open_kfid": "wkxxx",
      "external_userid": "wmxxx",
      "reject_switch": 1
    }
  }

• Fixes WxCpKfEventMsg 缺少属性 rejectSwitch #4126

[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-26T08:47:19.717000Z	5342434	Draft marked ready

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[Copilot]

Copilot review overview

🟢 Approval recommended

No unresolved review issues remain.

Review effort: Lite
Findings: None

What changed in this PR

Adds the rejectSwitch mapping for WeCom customer-service events and regression coverage for JSON deserialization.

Changes:

• Maps reject_switch to rejectSwitch.
• Adds assertions for the rejection-switch change event.

File	Description
weixin-java-cp/​src/​test/​java/​me/​chanjar/​weixin/​cp/​bean/​kf/​WxCpKfKnowledgeTest.java	Adds event parsing regression coverage
weixin-java-cp/​src/​main/​java/​me/​chanjar/​weixin/​cp/​bean/​kf/​msg/​WxCpKfEventMsg.java	Adds the rejectSwitch field mapping

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[augmentcode]

🤖 Augment PR Summary

总结：此 PR 为企业微信客服事件模型补充 reject_switch 到 rejectSwitch 的 Gson 映射。
测试：新增 reject_customer_msg_switch_change 消息列表载荷的反序列化回归用例，验证事件类型、接待人员和开关值。

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