refactor: 大规模调整项目目录结构，将ChatClient和ChatServer整合为Monorepo结构，并分为两个独立文件夹：chatclient/ 和 chatserver/。更新了ChatClient的CMakeLists.txt配置以适配新结构。

ChatClient/include/soundrecorder.h

@@ -0,0 +1,59 @@
+#ifndef SOUNDRECORDER_H
+#define SOUNDRECORDER_H
+
+#include <QObject>
+#include <QStandardPaths>
+#include <QFile>
+#include <QAudioSource>
+#include <QAudioSink>
+#include <QMediaDevices>
+
+class SoundRecorder : public QObject
+{
+    Q_OBJECT
+public:
+    const QString RECORD_PATH = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation) + "/sound/tmpRecord.pcm";
+    const QString PLAY_PATH = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation) + "/sound/tmpPlay.pcm";
+
+public:
+    static SoundRecorder* getInstance();
+
+    /////////////////////////////////////////////////
+    /// 录制语音语音
+    /////////////////////////////////////////////////
+    // 开始录制
+    void startRecord();
+    // 停止录制
+    void stopRecord();
+
+private:
+    static SoundRecorder* instance;
+    explicit SoundRecorder(QObject *parent = nullptr);
+
+    QFile soundFile;
+    QAudioSource* audioSource;
+
+    /////////////////////////////////////////////////
+    /// 播放语音
+    /////////////////////////////////////////////////
+public:
+    // 开始播放
+    void startPlay(const QByteArray& content);
+    // 停止播放
+    void stopPlay();
+
+private:
+    QAudioSink *audioSink;
+    QMediaDevices *outputDevices;
+    QAudioDevice outputDevice;
+    QFile inputFile;
+
+signals:
+    // 录制完毕后发送这个信号
+    void soundRecordDone(const QString& path);
+    // 播放完毕发送这个信号
+    void soundPlayDone();
+
+};
+
+#endif // SOUNDRECORDER_H