feat(mall): 添加商品 SKU功能

KKSU

2024-11-25 2b63bbbc7e61d3b50aa15cc200c4b4ee60226b4c

 src/main/java/cc/mrbird/febs/mall/entity/MallOrderItem.java

@@ -55,4 +55,7 @@

    @TableField(exist = false)
    private String unit;

    @TableField(exist = false)
    private BigDecimal itemAmount;
}