Sound hinzugefügt und UI aufgeräumt

include/mainwindow.h

@@ -7,10 +7,10 @@
 #include <QTabWidget>
 #include <QStatusBar>
 #include <QToolBar>
+#include <QMenuBar>
+#include <QMenu>
 #include <QLabel>
 #include <QAction>
-#include <QSpinBox>
-#include <QCheckBox>
 #include <QSet>
 
 #include "serialworker.h"
@@ -46,11 +46,13 @@ private slots:
     void showFormatReference();
     void configureTagFilter();
     void configureScreenshotDir();
+    void configureReconnectInterval();
     void showAbout();
 
 private:
     void setupUi();
     void setupToolBar();
+    void setupMenuBar();
     void setupStatusBar();
     void clearAllViews();
     void doShutdown();
@@ -71,8 +73,8 @@ private:
     QLabel *m_stateLabel     = nullptr;
     QLabel *m_reconnectLabel = nullptr;
 
-    QCheckBox *m_autoReconnectCb     = nullptr;
-    QSpinBox  *m_reconnectIntervalSb = nullptr;
+    QAction *m_autoReconnectAction   = nullptr;
+    int      m_reconnectIntervalMs   = 2000;
 
     QAction *m_connectAction    = nullptr;
     QAction *m_disconnectAction = nullptr;
@@ -85,5 +87,14 @@ private:
     SerialConfig   m_lastConfig;
     QSet<QString>  m_suppressedTags;   // tags hidden from Raw view
     QString        m_screenshotDir;    // target folder for [SCREENSHOT] tag captures
+
+    // Remembered folders for the *manual* "Screenshot"/"Record" toolbar
+    // buttons in VideoWidget (distinct from m_screenshotDir above, which is
+    // only for the firmware-triggered [SCREENSHOT] tag) - so the save
+    // dialogs reopen wherever the user last saved to instead of always
+    // resetting to Pictures/Videos.
+    QString        m_lastManualScreenshotDir;
+    QString        m_lastVideoDir;
+
     bool           m_shutdownDone = false;
 };