报表统计功能，增添最低库存字段

yaowanxin

2025-09-22 4107cf0d0e2edf99dd8d74d5580d95c2b35c1990

 src/main/java/com/ruoyi/purchase/pojo/ProductRecord.java

@@ -35,6 +35,11 @@
    private Long purchaseLedgerId;

    /**
     * 产品id
     */
    private Long saleLedgerProjectId;

    /**
     * 产品大类
     */
    private String productCategory;