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/MallSystemPayDto.java

@@ -13,4 +13,6 @@
    private BigDecimal balance;

    private BigDecimal addBalance;

    private Integer type;
}