贴标申请，仓储转运

lastleg-service/src/main/java/com/baiyue/lastleg/delivery/service/DeliveryTransferService.java

@@ -516,6 +516,8 @@ public class DeliveryTransferService {
         existing = outboundOrders.findByIdempotency(customerId, request.idempotencyKey().trim());
         if (existing != null) return replayReturnOutbound(customerId, existing, requestHash);
         for (ReturnInventoryCarton carton : locked) {
+            if (StringUtils.hasText(request.skuCode()) && !"PARCEL".equals(carton.getSourceUnitType()))
+                throw conflict("单SKU出库只允许散件库存；箱内库存请按箱或托盘出库");
             if ("PARCEL".equals(carton.getSourceUnitType()) && !StringUtils.hasText(request.skuCode()))
                 throw conflict("包裹散件只能按 SKU 出库，不能按箱号或托盘出库");
             com.baiyue.lastleg.returnreceipt.service.ReturnCartonCountGuard.requireConfirmed(carton);
@@ -525,7 +527,7 @@ public class DeliveryTransferService {
                 throw conflict("退货箱缺少明细或已被合箱计划锁定：" + carton.getCartonMark());
             if (StringUtils.hasText(request.skuCode()) && (contents.size() != 1
                 || !request.skuCode().trim().equals(contents.get(0).getSkuCode())))
-                throw conflict("单SKU出库只支持箱内仅有指定SKU的库存；混合箱请先拆箱");
+                throw conflict("所选散件来源必须仅包含指定SKU");
             if ("PALLET".equals(request.unitType()) && !StringUtils.hasText(carton.getPalletCode()))
                 throw conflict("整托出库必须存在托盘绑定");
         }

lastleg-service/src/main/resources/openapi/overseas-business-v1.yaml

@@ -825,7 +825,7 @@ paths:
   /api/platform/v1/last-leg/outbound-orders/return:
     post:
       summary: 创建退货出库单，支持单SKU全部或部分件数
-      description: 权限 platform:overseas-warehouse:outbound:create；单SKU来源须为纯SKU可用箱或散件。混合SKU箱须先拆箱。按箱唛排序分配件数，未拣货前占用整个使用来源；拣货后原箱余数恢复可用。相同幂等键改数量拒绝。
+      description: 权限 platform:overseas-warehouse:outbound:create；单SKU来源仅允许PARCEL散件可用库存，不包含箱内库存；实体箱按箱或托盘出库。按散件来源排序分配件数，未拣货前占用整个使用来源；拣货后来源余数恢复可用。相同幂等键改数量拒绝。
       security: [{ bearerAuth: [] }]
       parameters: [{ name: customerId, in: query, required: true, schema: { type: string } }]
       requestBody: