fix(order): route customer addresses through gateway

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

@@ -6,7 +6,7 @@ info:
 security:
   - bearerAuth: []
 paths:
-  /api/merchant/v1/order-addresses:
+  /api/merchant/v1/orders/first-leg/addresses:
     get:
       summary: 查询当前客户下单地址簿
       parameters:
@@ -27,7 +27,7 @@ paths:
       responses:
         '200': {description: 返回地址内部 ID，Long 按字符串序列化}
         '403': {description: 需要 merchant:order:create 权限}
-  /api/merchant/v1/order-addresses/{id}:
+  /api/merchant/v1/orders/first-leg/addresses/{id}:
     put:
       summary: 修改当前客户下单地址
       description: 已创建订单保存独立快照，本操作不会修改历史订单。