fix: voice playback coordinate bug + debug logging + device name encoding

- messagedelegate: editorEvent now adjusts me->pos() by option.rect.topLeft()
- voiceplayback: enhanced debug logging for file open/decode/play
- messagelist: debug voice file path + exists check
- inputbar: debug mediaDir path on record
- sound_manager: debug in playRawPcm, decodeDeviceName() for mixed encodings
- voiceencoder: debug file write path

tools/chatgui/src/inputbar.cpp

@@ -15,6 +15,7 @@
 #include <QApplication>
 #include <QLabel>
 #include <QResizeEvent>
+#include <QDir>
 
 static QPushButton *makeIconBtn(const QString &text, const QString &tooltip, QWidget *parent) {
     auto *btn = new QPushButton(text, parent);
@@ -214,6 +215,8 @@ void InputBar::onPttReleased() {
 
     QString mediaPath = m_mediaDirBase + "/" + m_channelIdForRecord;
     VoiceEncoder::ensureMediaDir(mediaPath);
+    qDebug("InputBar::onPttReleased: mediaDir=%s exists=%d channel=%s",
+           qPrintable(mediaPath), QDir(mediaPath).exists(), qPrintable(m_channelIdForRecord));
 
     QString fileName = VoiceEncoder::generateFileName();
     QString filePath = mediaPath + "/" + fileName;