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/userinfowidget.h

@@ -0,0 +1,46 @@
+#pragma once
+
+#include <QDialog>
+#include <QWidget>
+#include <QPushButton>
+#include <QLabel>
+#include <QGridLayout>
+#include <QMessageBox>
+
+#include "mainwidget.h"
+#include "model/data.h"
+#include "model/datacenter.h"
+
+//using model::Message;
+using namespace model;
+
+class UserInfoWidget : public QDialog
+{
+	Q_OBJECT
+
+public:
+	UserInfoWidget(const UserInfo& userInfo, QWidget *parent);
+	void initSingleSlot();
+
+	void clickDeleteFriendBtn();
+	void clickApplyBtn();
+
+private:
+	////保存对应的Message对象，暂时先放在这里
+	//Message message;
+	const UserInfo& userInfo;
+
+	QPushButton* avatarBtn;
+	QLabel* idTag;
+	QLabel* idLabel;
+
+	QLabel* nameTag;
+	QLabel* nameLabel;
+
+	QLabel* phoneTag;
+	QLabel* phoneLabel;
+
+	QPushButton* applyBtn;
+	QPushButton* sendMessageBtn;
+	QPushButton* deleteFriendBtn;
+};