修复：消除 QProcess 重载歧义并归档串流故障验证

变更详情：QProcess::finished 重载消歧；文档：串流失败根因（双 IP ARP 混乱）与延迟 A/B 结论

- moonlight_session.cpp：QOverload 显式指定 finished 重载，修复 ARM64 编译
- moonlight.conf：vsync/frame-pacing 默认改回开启（A/B 实测关闭无改善）
- docs：补充 10-29 登录流程验收、重启验收、Monitor 恢复、双 IP 根因与 A/B 数据
- tools：新增 deploy_kiosk.sh 一键部署脚本与语法自检

terminal/kiosk-shell/src/moonlight_session.cpp

@@ -73,7 +73,10 @@ bool MoonlightSession::start(const ConnectionTicket& ticket, StateCallback callb
     const QString logPath = logDir + QStringLiteral("/moonlight-%1.log")
         .arg(QDate::currentDate().toString(QStringLiteral("yyyyMMdd")));
 
-    connect(process_, &QProcess::finished, this, &MoonlightSession::onProcessFinished);
+    // QProcess::finished 在 Qt5 里有两个重载（(int) 已废弃），必须用 QOverload 消歧
+    connect(process_,
+            QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished), this,
+            &MoonlightSession::onProcessFinished);
     connect(process_, &QProcess::errorOccurred, this, &MoonlightSession::onProcessError);
     connect(process_, &QProcess::readyReadStandardOutput, this, [this, logPath]() {
         QFile log(logPath);