fix:修复ByteBuf内存泄露问题

src/main/java/com/qyft/gd/device/client/TcpClient.java

@@ -90,8 +90,12 @@ public class TcpClient {
     public boolean send(String request) {
         if (channel != null && channel.isActive()) {
             ByteBuf byteBuf = Unpooled.copiedBuffer(request, CharsetUtil.UTF_8);
-            channel.writeAndFlush(byteBuf);
-            return true;
+            try {
+                channel.writeAndFlush(byteBuf);
+                return true;
+            } finally {
+                byteBuf.release();  // 确保释放资源
+            }
         } else {
             log.error("TCP服务未连接，无法发送请求: {}", request);
             return false;