fix(wms): 修复钢卷更新时二维码步骤类型检查逻辑

- 在非退火步骤类型时才进行独占状态检查
- 添加对qrcodeStepType为空的边界情况处理
- 修复二维码内容更新中的空指针检查逻辑

klp-wms/src/main/java/com/klp/service/impl/WmsMaterialCoilServiceImpl.java

@@ -1325,8 +1325,10 @@ public class WmsMaterialCoilServiceImpl implements IWmsMaterialCoilService {
      * @return 新钢卷ID字符串
      */
     private String updateBySingle(WmsMaterialCoilBo bo, String qrcodeStepType) {
-        // 检查独占状态
-        validateCoilOperationPermission(bo.getCoilId(), "单个更新");
+        if (StringUtils.isNotBlank(qrcodeStepType) && !"annealing".equals(qrcodeStepType)){
+            // 检查独占状态
+            validateCoilOperationPermission(bo.getCoilId(), "单个更新");
+        }
 
         // 查询原钢卷
         WmsMaterialCoil oldCoil = baseMapper.selectById(bo.getCoilId());
@@ -1388,7 +1390,7 @@ public class WmsMaterialCoilServiceImpl implements IWmsMaterialCoilService {
 
         // 3. 更新二维码内容（添加更新步骤并更新current_coil_id）
         if (oldCoil.getQrcodeRecordId() != null) {
-            if ("annealing".equals(qrcodeStepType)) {
+            if (StringUtils.isNotBlank(qrcodeStepType) && "annealing".equals(qrcodeStepType)) {
                 updateQrcodeContentForCustomStep(oldCoil, bo, newCoil.getCoilId(), "退火", "退火操作");
             } else {
                 updateQrcodeContentForNormalUpdate(oldCoil, bo, newCoil.getCoilId());