fix: 处理null问题

buhuazhen

2026-06-01 facbfd2b1a0eb1ea971b699def8c85a43c5fa7fa

 src/main/java/com/ruoyi/stock/dto/StockUninventoryDto.java

@@ -19,4 +19,6 @@
    private Long recordId;

    private BigDecimal unLockedQuantity;

    private String rootName;
}