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/messagedelegate.cpp

@@ -16,6 +16,8 @@
 #include <QMap>
 #include <QDateTime>
 #include <QTimer>
+#include <QFile>
+#include <QDebug>
 
 MessageDelegate::MessageDelegate(QObject *parent)
     : QStyledItemDelegate(parent) {}
@@ -61,9 +63,12 @@ bool MessageDelegate::editorEvent(QEvent *event, QAbstractItemModel *model,
     if (!L.isVoice) return false;
 
     QMouseEvent* me = static_cast<QMouseEvent*>(event);
-    if (!L.voicePlayBtnRect.contains(me->pos())) return false;
+    QPoint localPos = me->pos() - option.rect.topLeft();
+    if (!L.voicePlayBtnRect.contains(localPos)) return false;
 
     QString filePath = index.data(MsgVoiceFileRole).toString();
+    qDebug("MessageDelegate::editorEvent voice click: filePath=%s exists=%d",
+           qPrintable(filePath), QFile::exists(filePath));
     if (filePath.isEmpty()) return false;
 
     ensureVoiceTimer();