添加宁夏吴忠利通义务商贸城场景，修改HttpServer脚本

Assets/_Valheim/Scripts/HttpServer.cs

@@ -91,10 +91,7 @@ public class HttpServer : MonoBehaviour
             listener.Start();
             Debug.Log("http开始启动：");
             isRunning = true;
-            serverThread = new Thread(ListenLoop)
-            {
-                IsBackground = true
-            };
+            ListenLoop();
             serverThread.Start();
 
             Debug.Log($"✅ HTTP Server 启动成功：{SERVER_URL}");