feat(wms):上架管理PC上传页默认填充指定上架库位（维他奶仓→2层冷凍A區A01），仅回显不落库

mhd-api/mhd-api-system/src/main/java/com/mhd/system/api/SystemServiceFeign.java

@@ -237,6 +237,12 @@ public interface SystemServiceFeign {
     @GetMapping("/warehouseApi/getInfo/{warehouseId}")
     public AjaxResult getWarehouseInfoByWarehouseId(@PathVariable("warehouseId") Long warehouseId);
 
+    /**
+     * 根据warehouseId获取仓库及下库区及库位树（与前端 warehouseApi/getWarehouseChildren 一致，用于PC上架页默认库位回显）
+     */
+    @GetMapping("/warehouseApi/getWarehouseChildren")
+    public AjaxResult getWarehouseChildren(@RequestParam("warehouseId") Long warehouseId);
+
     /**
      * 根据storageSectionId获取对应库区信息
      */

mhd-api/mhd-api-system/src/main/java/com/mhd/system/api/domain/WarehouseLinkageFeignPO.java

@@ -0,0 +1,30 @@
+package com.mhd.system.api.domain;
+
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.List;
+
+/**
+ * 仓库联动树节点（Feign侧）
+ * 镜像system端WarehouseLinkagePO/StorageSectionLinkagePO/StorageLocationLinkagePO三级结构：仓库→库区→库位
+ *
+ * @author rcx
+ * @date 2026-08-22
+ */
+@Data
+public class WarehouseLinkageFeignPO implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    /** 仓库id / 库区id(storageSectionId) / 库位id(storageLocationId) */
+    private Long id;
+
+    /** warehouseCode / storageCode / storageLocationCode */
+    private String code;
+
+    /** warehouseName / storageName / storageLocationName */
+    private String name;
+
+    /** 下级节点：仓库下为库区列表，库区下为库位列表，库位无children */
+    private List<WarehouseLinkageFeignPO> children;
+}

mhd-api/mhd-api-system/src/main/java/com/mhd/system/api/factory/RemoteSystemFeignFallbackFactory.java

@@ -20,6 +20,7 @@ import org.springframework.cloud.openfeign.FallbackFactory;
 import org.springframework.stereotype.Component;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestParam;
 
 import java.util.List;
 
@@ -184,6 +185,11 @@ public class RemoteSystemFeignFallbackFactory implements FallbackFactory<SystemS
                 return AjaxResult.error("根据仓库ID获取仓库信息失败");
             }
 
+            @Override
+            public AjaxResult getWarehouseChildren(@RequestParam("warehouseId") Long warehouseId) {
+                return AjaxResult.error("根据仓库ID获取仓库及下库区及库位树失败");
+            }
+
             @Override
             public AjaxResult getStorageSectionInfoByStorageSectionId(@PathVariable("storageSectionId") Long storageSectionId) {
                 return AjaxResult.error("根据库区ID获取库区信息失败");