1.添加图片注册和前后板主题图片上传；2.修改mdns连接方式

FactoryTestTool/SourceCode/Network/mdns/MdnsServiceThread.h

@@ -0,0 +1,44 @@
+#include <QThread>
+#include <QDebug>
+#include <signal.h>
+
+#include "mdns.h"
+
+// 添加一个类来运行 mDNS 服务
+class MdnsServiceThread : public QThread {
+    Q_OBJECT
+public:
+    MdnsServiceThread(const QString& hostname, const QString& serviceName, int servicePort, QObject* parent = nullptr)
+        : QThread(parent),
+        m_hostname(hostname),
+        m_serviceName(serviceName),
+        m_servicePort(servicePort) {}
+
+    void stop() {
+        extern volatile sig_atomic_t running;
+        running = 0; // 停止 mDNS 主循环
+        m_running = false; // 设置运行标志为 false
+    }
+
+protected:
+    void run() override {
+        qDebug() << "Starting mDNS service...";
+        extern volatile sig_atomic_t running; // 使用全局变量控制运行状态
+        running = 1;
+
+        // 调用阻塞的 service_mdns 方法
+        int result = service_mdns(m_hostname.toStdString().c_str(), m_serviceName.toStdString().c_str(), m_servicePort);
+        if (result < 0) {
+            qDebug() << "Failed to start mDNS service";
+        }
+        else {
+            qDebug() << "mDNS service stopped";
+        }
+    }
+
+private:
+    QString m_hostname;
+    QString m_serviceName;
+    int m_servicePort;
+    bool m_running = true; // 默认运行状态
+};