Save shared stream microphone through the main window

tools/chatgui/src/mainwindow.cpp

@@ -806,6 +806,8 @@ void MainWindow::showStreamPublisher(quint64 group, StreamGridWindow* returnTo)
     qint64 constructedUs = elapsed.nsecsElapsed() / 1000;
     connect(m_streamPublishWindow, &StreamPublishWindow::settingsChanged, this,
         [](const QString& settings) { postUiStateKv("stream_capture_settings", settings); });
+    connect(m_streamPublishWindow, &StreamPublishWindow::microphoneChanged, this,
+        [](const QString& id) { postUiStateKv("audio_input_id", id); });
     if (returnTo) connect(m_streamPublishWindow, &StreamPublishWindow::closed, returnTo, [returnTo] {
         if (!returnTo->isVisible()) return;
         returnTo->raise(); returnTo->activateWindow();

tools/chatgui/src/stream_publish_window.cpp

@@ -2,7 +2,6 @@
 #include "videoplayer_window.h"
 #include "capture_controls.h"
 #include "sound_manager.h"
-#include "../transport/gui_bridge.h"
 #include "debug_config.h"
 #include <QVBoxLayout>
 #include <QCoreApplication>
@@ -201,11 +200,8 @@ StreamPublishWindow::StreamPublishWindow(StreamPublishEngine* engine, uint64_t g
             auto* sound = SoundManager::instance();
             const QString id = action->data().toString();
             if (id != sound->captureDevice()) {
-                if (gui_bridge_post_setting(GUI_SETTING_UI_STATE, "audio_input_id", id.toUtf8().constData()) < 0) {
-                    DEBUG_ERROR(DEBUG_CATEGORY_STREAM, "desktop microphone selection could not be saved input=%s", qPrintable(id));
-                    m_status->setText(text("Failed to select device")); refreshMicrophones(); synchronize(); return;
-                }
                 sound->setDevices(sound->playbackDevice(), id);
+                emit microphoneChanged(id);
             }
         }
         synchronize(); saveSettings();

tools/chatgui/src/stream_publish_window.h

@@ -23,6 +23,7 @@ public:
     StreamPublishWindow(StreamPublishEngine* engine, uint64_t group, QWidget* parent = nullptr, const QString& settings = {});
 signals:
     void settingsChanged(const QString& settings); // Новый компактный JSON, только при изменении выбора; runtime handles не сохраняются.
+    void microphoneChanged(const QString& id); // Новый общий выбор SoundManager; владелец сохраняет audio_input_id в ui_state.
     void closed(); // Принят closeEvent; MainWindow использует сигнал для возврата фокуса в grid, без остановки публикации.
 protected:
     void closeEvent(QCloseEvent* event) override;