fix(phase4): enforce customer and pallet versions

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

@@ -317,6 +317,8 @@ paths:
       summary: 创建海外换标单
       description: 权限 platform:overseas-warehouse:relabel-order:create；明细与换标文件按请求快照保存，使用 idempotencyKey 幂等。
       security: [{ bearerAuth: [] }]
+      parameters:
+        - { name: customerId, in: query, required: true, schema: { type: string, pattern: '^[1-9][0-9]*$' } }
       requestBody: { required: true, content: { application/json: { schema: { $ref: '#/components/schemas/RelabelCreate' } } } }
       responses: { '200': { description: 统一 ApiResponse 包装的换标单详情 }, '409': { description: 幂等键冲突 } }
   /api/platform/v1/last-leg/relabel-applications/{relabelNo}:
@@ -466,9 +468,8 @@ components:
     RelabelStatus: { type: string, enum: [PENDING_PROCESSING, PROCESSING, COMPLETED, REJECTED, CANCELLED] }
     RelabelCreate:
       type: object
-      required: [customerId, customerOrderNo, overseasWarehouseId, labelDeadline, contactName, contactPhone, idempotencyKey, items]
+      required: [customerOrderNo, overseasWarehouseId, labelDeadline, contactName, contactPhone, idempotencyKey, items]
       properties:
-        customerId: { type: string, maxLength: 32, description: Target customer ID required by the platform create endpoint }
         customerOrderNo: { type: string, maxLength: 128 }
         overseasWarehouseId: { type: string, maxLength: 128 }
         labelDeadline: { type: string, format: date-time }