fix(wms): 发货计划钢卷查询逻辑修复

- 在XML映射文件中添加coilIds空值判断，防止SQL异常
- 将materialCoilService声明为final，确保依赖不可变性
- 优化查询条件，当coilIds为空时返回空结果集
- 提高代码健壮性和查询安全性

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

@@ -32,7 +32,7 @@ public class WmsDeliveryPlanCoilOperateServiceImpl implements IWmsDeliveryPlanCo
 
     private final WmsDeliveryPlanCoilOperateMapper baseMapper;
 
-    private WmsMaterialCoilServiceImpl materialCoilService;
+    private final WmsMaterialCoilServiceImpl materialCoilService;
 
     /**
      * 查询发货计划钢卷操作记录

klp-wms/src/main/resources/mapper/klp/WmsDeliveryPlanCoilOperateMapper.xml

@@ -31,6 +31,9 @@
         </if>
         ) tmp
         WHERE tmp.rn = 1
+        <if test="coilIds == null or coilIds.length == 0">
+            AND 1 = 2
+        </if>
     </select>