feat(ai): 新增消息构建逻辑支持多种角色对话

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2025-10-30 94193e74305a30697b9b6e8c841d34d3576a50c8

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

@@ -26,5 +26,4 @@
    //减免金额
    private BigDecimal realAmount;


}