fix: reserve stable inbound code for draft label printing

order/src/main/resources/openapi/order-v1.yaml

@@ -28,6 +28,23 @@ paths:
             application/json:
               schema: {$ref: '#/components/schemas/CargoLabelBindingListEnvelope'}
         '403': {description: 内部服务令牌无效}
+  /internal/order/v1/cargoes/{tenantId}/{orderId}/printable-inbound-snapshot:
+    post:
+      security: []
+      summary: 为 Firstleg 箱唛打印读取并预留稳定入仓快照
+      description: >-
+        仅接受内部服务令牌。若 AUTO 模式草稿尚无入仓码，则按订单渠道原子预留全局唯一入仓码；
+        并发重放返回已胜出的同一码，后续订单提交继续复用，避免已打印二维码失效。
+      parameters:
+        - name: X-Internal-Service-Token
+          in: header
+          required: true
+          schema: {type: string}
+        - {name: tenantId, in: path, required: true, schema: {type: string, pattern: '^[1-9][0-9]*$'}}
+        - {name: orderId, in: path, required: true, schema: {type: string, pattern: '^[1-9][0-9]*$'}}
+      responses:
+        '200': {description: 返回带稳定入仓码及总箱数的订单快照}
+        '403': {description: 内部服务令牌无效}
   /internal/order/v1/pending-review-orders:
     get:
       security: []