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/groupsessiondetailwidget.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#include <QDialog>
+#include <QWidget>
+#include <QLabel>
+
+#include <QVBoxLayout>
+#include <qscrollarea.h>
+#include <qscrollbar.h>
+#include <qgridlayout.h>
+#include <qpushbutton.h>
+#include <qgridlayout.h>
+#include "sessiondetailwidget.h"
+#include "debug.h"
+
+class AvatarItem;
+
+class GroupSessionDetailWidget : public QDialog
+{
+	Q_OBJECT
+
+public:
+	GroupSessionDetailWidget(QWidget* parent);
+
+	void initData();
+	void initMembers(const QString& chatSessionId);
+
+	void addMember(AvatarItem* avatarItem);
+
+private:
+	QGridLayout* glayout;
+	QLabel* groupNameLabel;
+
+	//表示当前所要添加的AvatarItem处在的行和列
+	int curRow = 0;
+	int curCol = 1;
+};