功能：完善2K串流、显示恢复与输入优化

terminal/kiosk-shell/src/main_window.cpp

@@ -64,7 +64,6 @@ void MainWindow::setupUi() {
         QStringLiteral("QWidget { background: #0f1420; color: #e6e9ef; }"
                        "QLineEdit { background: #1a2233; border: 1px solid #2b3654; "
                        "border-radius: 4px; padding: 8px; color: #e6e9ef; }"
-                       "QLineEdit:focus { border: 1px solid #2f6feb; }"
                        "QPushButton { background: #232d44; border: 1px solid #2b3654; "
                        "border-radius: 6px; color: #e6e9ef; }"
                        "QPushButton:hover { background: #2b3654; }"));
@@ -289,11 +288,8 @@ void MainWindow::onEditDesktopRequested(const QString& desktopId) {
 }
 
 bool MainWindow::startMoonlightSession(const ConnectionTicket& ticket, quint64 attempt) {
-    MoonlightSession::Options opts;
-    opts.decoder = QStringLiteral("software");
-    opts.videoCodec = QStringLiteral("H.264");
-    opts.audioOnHost = true;
-    moonlightSession_->setOptions(opts);
+    moonlightSession_->setOptions(MoonlightSession::optionsFromEnvironment(
+        QProcessEnvironment::systemEnvironment()));
 
     phaseClock_.restart();
     connectionPhase_ = ConnectionPhase::kProcessStart;