feat(device): 添加设备类目字段并重构DTO结构

liyong

2026-04-15 dc26b581fb9f8c9ce7a86b0495d67764092c3500

 src/main/java/com/ruoyi/basic/dto/StorageBlobDTO.java

@@ -6,4 +6,6 @@
@Data
public class StorageBlobDTO extends StorageBlob {
    private String url;

    private String downloadUrl;
}