refactor(websocket): 重构 WebSocket 相关代码

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2025-08-14 b224c081c0e21dad51f0f628d5c1fbfd4245cddd

 src/main/java/cc/mrbird/febs/mall/dto/MailGoodsSkuDto.java

@@ -36,5 +36,8 @@
    private BigDecimal goodsWeight;

    private String sample;
    private BigDecimal levelOnePrice;
    private BigDecimal levelTwoPrice;
    private BigDecimal levelThreePrice;

}