修复HTTP代理认证头设置错误

[Copilot]

OkHttp代理认证使用了错误的认证头Authorization，应该使用Proxy-Authorization。同时应使用proxyAuthenticator()而非authenticator()方法。

修改内容

• WxCpServiceOkHttpImpl.java - 修复代理认证配置
• WxMaServiceOkHttpImpl.java - 修复代理认证配置
• WxChannelServiceOkHttpImpl.java - 修复代理认证配置
• WxQidianServiceOkHttpImpl.java - 修复代理认证配置
• WxCpTpServiceOkHttpImpl.java - 修复代理认证配置

注：WxMpServiceOkHttpImpl.java 已使用正确配置，无需修改。

修改示例

// Before
clientBuilder.authenticator(new Authenticator() {
    public Request authenticate(Route route, Response response) {
        String credential = Credentials.basic(username, password);
        return response.request().newBuilder()
            .header("Authorization", credential)
            .build();
    }
});

// After
clientBuilder.proxyAuthenticator(new Authenticator() {
    public Request authenticate(Route route, Response response) {
        String credential = Credentials.basic(username, password);
        return response.request().newBuilder()
            .header("Proxy-Authorization", credential)
            .build();
    }
});

Fixes #3331

Original prompt

---

This section details on the original issue you should resolve

<issue_title>使用http代理时且需认证时，http客户端认证头设置错误</issue_title>
<issue_description>### 简要描述
使用http代理时且需认证时，http客户端认证头设置错误

模块版本情况

• WxJava 模块名: wx-java-mp-spring-boot-starter-4.6.5.B WxMpServiceOkHttpImpl
• WxJava 版本号:4.6.5.B

详细描述

clientBuilder.authenticator(new Authenticator() {
                public Request authenticate(Route route, Response response) throws IOException {
                    String credential = Credentials.basic(WxMpServiceOkHttpImpl.this.httpProxy.getProxyUsername(), WxMpServiceOkHttpImpl.this.httpProxy.getProxyPassword());
                    return response.request().newBuilder().header("Authorization", credential).build();
                }
            });

修正意见:

Tinyproxy 默认情况下 ​不支持直接修改认证请求头（如 Proxy-Authorization）的名称或格式，其认证机制严格遵循 HTTP 协议标准。以下是详细分析和替代方案：

​1. Tinyproxy 的认证头固定性
​标准协议约束​
Tinyproxy 的认证流程基于 HTTP 协议规范，使用固定的请求头和响应头：

代理要求认证时返回：Proxy-Authenticate: Basic realm="..."
客户端提交凭证时携带：Proxy-Authorization: Basic <credentials>

日志

me.chanjar.weixin.common.error.WxRuntimeException: java.io.IOException: Failed to authenticate with proxy
	at me.chanjar.weixin.mp.api.impl.BaseWxMpServiceImpl.getAccessToken(BaseWxMpServiceImpl.java:287)
	at me.chanjar.weixin.mp.api.impl.BaseWxMpServiceImpl.executeInternal(BaseWxMpServiceImpl.java:471)
	at me.chanjar.weixin.mp.api.impl.BaseWxMpServiceImpl.execute(BaseWxMpServiceImpl.java:435)
	at me.chanjar.weixin.mp.api.impl.BaseWxMpServiceImpl.post(BaseWxMpServiceImpl.java:383)
	at me.chanjar.weixin.mp.api.impl.BaseWxMpServiceImpl.post(BaseWxMpServiceImpl.java:398)
	at me.chanjar.weixin.mp.api.impl.WxMpFreePublishServiceImpl.getPublicationRecords(WxMpFreePublishServiceImpl.java:64)
	at me.chanjar.weixin.mp.api.impl.WxMpFreePublishServiceImpl.getPublicationRecords(WxMpFreePublishServiceImpl.java:70)
	at cn.iocoder.yudao.module.mp.controller.admin.news.MpFreePublishController.getFreePublishPage(MpFreePublishController.java:55)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:355)

</issue_description>

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• Fixes 使用http代理时且需认证时，http客户端认证头设置错误 #3515

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