fix: 9610预报下游网关地址改为取自 api_center 配置

Co-authored-by: Cursor <cursoragent@cursor.com>

src/Oms.Application/Services/Orders/Customs9610OrderService.cs

@@ -242,7 +242,7 @@ public class Customs9610OrderService : ApplicationService
     }
 
     /// <summary>
-    /// 预报下游（写死 create9610Order / BH 网关地址）。
+    /// 预报下游（create9610Order / BH；网关地址取自其他配置 api_center）。
     /// </summary>
     [HttpPost("/order/customs-9610/fetch-declaration-form-batch")]
     public async Task<Customs9610DeclareBatchOutput> FetchDeclarationFormBatchAsync([FromBody] Customs9610IdsInput input)
@@ -274,10 +274,10 @@ public class Customs9610OrderService : ApplicationService
     }
 
     /// <summary>
-    /// 写死的 9610 预报下游地址：create9610Order + supplierCode=BH。
+    /// 9610 预报下游标准码 / 供应商码（网关根地址由 api_center.BaseUrl 拼装）。
     /// </summary>
-    private const string Create9610OrderForwardUrl =
-        "https://api.ideship.com/itfx/InterfaceForward/ForwardWithSubscribe?standardCode=create9610Order&supplierCode=BH";
+    private const string Create9610OrderStandardCode = "create9610Order";
+    private const string Create9610OrderSupplierCode = "BH";
 
     private async Task<Customs9610DeclareResult> DownstreamForwardOneAsync(int id)
     {
@@ -303,8 +303,10 @@ public class Customs9610OrderService : ApplicationService
         ItfxForwardResult forward;
         try
         {
-            forward = await ItfxForwardClient.ForwardToAbsoluteUrlAsync(
-                Create9610OrderForwardUrl,
+            // BaseUrl 来自其他配置 api_center（ItfxForwardClient 内部解析）
+            forward = await ItfxForwardClient.ForwardWithSubscribeAsync(
+                Create9610OrderStandardCode,
+                Create9610OrderSupplierCode,
                 creds.AppKey,
                 creds.AppSecret,
                 body);
@@ -322,7 +324,6 @@ public class Customs9610OrderService : ApplicationService
                 Status = header.Status,
                 ServiceNo = header.ServiceNo,
                 ClientNo = header.ClientNo,
-                Url = Create9610OrderForwardUrl,
             };
         }