修改用电时段，区域

yaowanxin

2025-08-11 883a4a64a14de0a5476d1955894a9988a5bff1b7

 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;