完善微信小程序消息推送（安全模式）JSON 入参的验签解密能力

[Copilot]

当前 WxMaMessage 对安全模式 XML 已支持“验签+解密”，但 JSON 仅支持解密，导致调用方需要手工提取 Encrypt 并自行验签。该变更补齐 JSON 与 XML 在安全模式下的能力对齐，支持直接完成来源校验与解密。

• 变更一：补充 JSON 安全模式重载（验签 + 解密）

  • 在 WxMaMessage 新增 5 参数重载：
    • fromEncryptedJson(String encryptedJson, WxMaConfig config, String timestamp, String nonce, String msgSignature)
    • fromEncryptedJson(InputStream inputStream, WxMaConfig config, String timestamp, String nonce, String msgSignature)
  • 解析 Encrypt 后复用 WxMaCryptUtils.decryptContent(...)，按 token/timestamp/nonce/msgSignature 完成签名校验并解密。

• 变更二：保持兼容

  • 原有 2 参数 fromEncryptedJson(String/InputStream, WxMaConfig) 保持不变，继续提供“仅解密”行为，不影响既有调用。

• 变更三：补充针对性用例

  • 增加 JSON 安全模式成功路径（验签通过后正常解密解析）与失败路径（签名不匹配抛异常）覆盖，确保新重载行为清晰可预期。

示例调用：

WxMaMessage message = WxMaMessage.fromEncryptedJson(
  encryptedJson,
  wxMaConfig,
  timestamp,
  nonce,
  msgSignature
);

[Copilot]

Pull request overview

该 PR 针对 weixin-java-miniapp 中小程序消息推送“安全模式”场景，补齐 WxMaMessage 对 JSON 入参 的“验签 + 解密”能力，使其与现有 XML 处理能力对齐，减少调用方自行提取 Encrypt 与验签的负担。

Changes:

• 为 WxMaMessage 新增带 timestamp/nonce/msgSignature 的 fromEncryptedJson(...) 重载，走 WxMaCryptUtils.decryptContent(...) 完成签名校验与解密。
• 增加对应的单测覆盖 JSON 安全模式成功路径与签名失败路径。

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java	新增 JSON 安全模式“验签+解密”重载入口（String/InputStream）。
weixin-java-miniapp/src/test/java/cn/binarywang/wx/miniapp/bean/WxMaMessageTest.java	补充 JSON 安全模式验签通过与签名不匹配异常用例。

[augmentcode]

🤖 Augment PR Summary

Summary: 补齐 WxMaMessage 在安全模式 JSON 回调下的“验签 + 解密”能力，使其与 XML 行为对齐。

Changes:

• 新增 fromEncryptedJson 5 参数重载（String/InputStream），接收 timestamp/nonce/msgSignature
• 从 JSON 中解析 Encrypt 字段后复用 WxMaCryptUtils.decryptContent(...) 完成签名校验并解密
• 新增单测覆盖：验签通过可正常解密解析、验签失败抛出异常

Technical Notes: 保留原有 2 参数重载的“仅解密”行为以确保兼容性。

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[augmentcode]

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[binarywang]

@copilot 修复编译报错
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.15.0:compile (default-compile) on project weixin-java-miniapp: Compilation failure: Compilation failure:
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[656,17] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[659,5] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[661,5] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[664,17] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[669,5] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[671,5] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[675,10] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[677,3] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[679,10] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[681,3] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[683,10] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[685,3] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[687,10] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[689,3] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[691,10] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[693,3] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[695,10] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[697,3] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[699,10] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[701,3] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[703,10] class, interface, or enum expected
[ERROR] /home/circleci/project/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaMessage.java:[705,3] class, interface, or enum expected
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn -rf :weixin-java-miniapp

Exited with code exit status 1

[Copilot]

@copilot 修复编译报错
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.15.0:compile (default-compile) on project weixin-java-miniapp: Compilation failure: Compila...

已修复。根本原因是新增方法使用了错误的缩进导致多了一个 } 将类提前关闭，后续所有方法因此位于类体之外。

修复内容（commit $(git rev-parse --short HEAD)）：

1. 移除多余的 } 并修正代码缩进，使所有方法回归类体内
2. 同步简化异常处理：decryptContent 仅抛出 WxRuntimeException（非受检异常），可直接透传，无需 try-catch 包装，与 fromEncryptedXml 行为一致