fix: 修复进度条的问题

server/src/MsgBus.cs

@@ -1,7 +1,8 @@
+using server.Services;
 /// <summary>
 /// 多线程通信总线
 /// </summary>
-public static class MsgBus
+public sealed class MsgBus
 {
     private static NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();
 
@@ -11,12 +12,39 @@ public static class MsgBus
     /// </summary>
     public static UDPServer UDPServer { get { return udpServer; } }
 
+    // 添加静态ProgressTracker引用
+    private static ProgressTracker? _progressTracker;
+
+    /// <summary>
+    /// 设置全局ProgressTracker实例
+    /// </summary>
+    public static void SetProgressTracker(ProgressTracker progressTracker)
+    {
+        _progressTracker = progressTracker;
+    }
+
+    public static ProgressTracker ProgressTracker
+    {
+        get
+        {
+            if (_progressTracker == null)
+            {
+                throw new InvalidOperationException("ProgressTracker is not set.");
+            }
+            return _progressTracker;
+        }
+    }
+
     private static bool isRunning = false;
     /// <summary>
     /// 获取通信总线运行状态
     /// </summary>
     public static bool IsRunning { get { return isRunning; } }
 
+    private MsgBus() { }
+
+    static MsgBus() { }
+
     /// <summary>
     /// 通信总线初始化
     /// </summary>