重构：完善串流就绪检测并补充 GPU 联调记录

变更详情：kiosk 会话就绪检测重构（Moonlight 输出解析器/事件化回调/单元测试）；GPU 直通实操记录（vfio Subsystem 注入、sysfs vBIOS、7zr+pnputil 安装、566.36 驱动、Sunshine 配对断链修复）

terminal/kiosk-shell/tests/test_desktop_list_page.cpp

@@ -0,0 +1,53 @@
+#include <QPushButton>
+#include <QSignalSpy>
+#include <QtTest>
+
+#include "desktop_list_page.h"
+
+using namespace vdi;
+
+class DesktopListPageTest : public QObject {
+    Q_OBJECT
+
+private slots:
+    void firstClickDisablesActionsAndBlocksDuplicate();
+};
+
+void DesktopListPageTest::firstClickDisablesActionsAndBlocksDuplicate() {
+    DesktopListPage page;
+    DesktopInfo desktop;
+    desktop.id = QStringLiteral("desktop-1");
+    desktop.name = QStringLiteral("Windows 10");
+    desktop.os = QStringLiteral("Windows");
+    desktop.state = DesktopState::kAvailable;
+    page.setDesktops({desktop});
+
+    QPushButton* connectButton = nullptr;
+    QPushButton* editButton = nullptr;
+    const auto buttons = page.findChildren<QPushButton*>();
+    for (QPushButton* button : buttons) {
+        if (button->text() == QStringLiteral("连接")) {
+            connectButton = button;
+        } else if (button->text() == QStringLiteral("设置")) {
+            editButton = button;
+        }
+    }
+    QVERIFY(connectButton);
+    QVERIFY(editButton);
+
+    QSignalSpy spy(&page, &DesktopListPage::desktopSelected);
+    connectButton->click();
+    QCOMPARE(spy.count(), 1);
+    QVERIFY(!connectButton->isEnabled());
+    QVERIFY(!editButton->isEnabled());
+
+    connectButton->click();
+    QCOMPARE(spy.count(), 1);
+
+    page.setBusy(false);
+    QVERIFY(connectButton->isEnabled());
+    QVERIFY(editButton->isEnabled());
+}
+
+QTEST_MAIN(DesktopListPageTest)
+#include "test_desktop_list_page.moc"

terminal/kiosk-shell/tests/test_moonlight_session.cpp

@@ -0,0 +1,94 @@
+#include <QtTest>
+
+#include "moonlight_session.h"
+
+using namespace vdi;
+
+class MoonlightSessionTest : public QObject {
+    Q_OBJECT
+
+private slots:
+    void parsesSplitReadyMarkers();
+    void requiresBothReadyMarkers();
+    void rejectsSecondStart();
+};
+
+void MoonlightSessionTest::parsesSplitReadyMarkers() {
+    MoonlightOutputParser parser;
+    parser.append("Test decode succ");
+    QVERIFY(!parser.isReady());
+    parser.append("essful\nRenderer 'SDL' with 'DRM' backend ");
+    QVERIFY(parser.hasTestDecode());
+    QVERIFY(!parser.hasRenderer());
+    parser.append("chosen\n");
+    QVERIFY(parser.isReady());
+}
+
+void MoonlightSessionTest::requiresBothReadyMarkers() {
+    MoonlightOutputParser parser;
+    parser.append("Test decode successful\n");
+    QVERIFY(!parser.isReady());
+
+    parser.reset();
+    parser.append("Renderer 'SDL' chosen\n");
+    QVERIFY(!parser.isReady());
+
+    parser.append("Connection terminated: -1\n");
+    QVERIFY(parser.hasTerminalError());
+    QVERIFY(!parser.isReady());
+}
+
+void MoonlightSessionTest::rejectsSecondStart() {
+    QTemporaryDir tempDir;
+    QVERIFY(tempDir.isValid());
+
+    const QString executable = tempDir.filePath(QStringLiteral("moonlight-qt"));
+    QFile script(executable);
+    QVERIFY(script.open(QIODevice::WriteOnly | QIODevice::Text));
+    script.write("#!/bin/sh\n"
+                 "printf 'Test decode successful\\n'\n"
+                 "printf \"Renderer 'SDL' with 'DRM' backend chosen\\n\"\n"
+                 "sleep 5\n");
+    script.close();
+    QVERIFY(script.setPermissions(QFileDevice::ReadOwner | QFileDevice::WriteOwner |
+                                  QFileDevice::ExeOwner | QFileDevice::ReadGroup |
+                                  QFileDevice::ExeGroup | QFileDevice::ReadOther |
+                                  QFileDevice::ExeOther));
+
+    const QByteArray oldPath = qgetenv("PATH");
+    qputenv("PATH", tempDir.path().toUtf8() + ':' + oldPath);
+
+    ConnectionTicket ticket;
+    ticket.endpoint = QStringLiteral("127.0.0.1");
+    ticket.app = QStringLiteral("Desktop");
+
+    MoonlightSession session;
+    int started = 0;
+    int ready = 0;
+    int terminal = 0;
+    const auto callback = [&](const MoonlightSession::Event& event) {
+        if (event.type == MoonlightSession::EventType::kStarted) {
+            ++started;
+        } else if (event.type == MoonlightSession::EventType::kStreamReady) {
+            ++ready;
+        } else if (event.type == MoonlightSession::EventType::kFailed ||
+                   event.type == MoonlightSession::EventType::kFinished) {
+            ++terminal;
+        }
+    };
+
+    QVERIFY(session.start(ticket, callback));
+    QTRY_COMPARE_WITH_TIMEOUT(started, 1, 2000);
+    QVERIFY(!session.start(ticket, callback));
+    QTRY_COMPARE_WITH_TIMEOUT(ready, 1, 3000);
+
+    session.stop();
+    QTRY_COMPARE_WITH_TIMEOUT(terminal, 1, 4000);
+    QCOMPARE(ready, 1);
+    QCOMPARE(terminal, 1);
+
+    qputenv("PATH", oldPath);
+}
+
+QTEST_GUILESS_MAIN(MoonlightSessionTest)
+#include "test_moonlight_session.moc"