feat(biz): 添加电力环境设备更新功能

- 在 LcPowerEnvDeviceServiceImpl 中实现 updateById 方法
- 移除测试类中不必要的 ID 设置逻辑

jeelowcode-admin/src/test/java/com/jeelowcode/module/biz/mapper/LcBuildingMapperTest.java

@@ -25,7 +25,6 @@ public class LcBuildingMapperTest extends BaseDbUnitTest {
     public void testInsert() {
         // 准备数据
         LcBuildingEntity entity = new LcBuildingEntity();
-        entity.setId(IdUtil.getSnowflakeNextId());
         entity.setBuildingId("BUILDING_001");
         entity.setBuildingName("测试楼宇");
         entity.setCampusId("CAMPUS_001");