feat(t237): import freight orders synchronously

backend-api/internal/transport/webui/templates/freight-import.gohtml

@@ -63,7 +63,7 @@
         <input id="order-number" name="order_number" value="{{.OrderNumber}}"
           maxlength="128" autocomplete="off" required>
       </div>
-      <button class="button primary" type="submit" data-loading-label="正在创建…">同步此单号</button>
+      <button class="button primary" type="submit" data-loading-label="正在同步…">同步此单号</button>
     </form>
     <form class="form-panel" method="post" action="/freight/import" data-loading-form>
       <input type="hidden" name="csrf_token" value="{{.Page.CSRFToken}}">

backend-api/internal/transport/webui/templates/freight.gohtml

@@ -15,6 +15,7 @@
       </div>
       <a class="button primary" href="/freight/import">导入货运单</a>
     </div>
+    {{if .Notice}}<div class="notice" role="status">{{.Notice}}</div>{{end}}
     <section class="table-region" aria-labelledby="freight-table-title">
       <h2 id="freight-table-title" class="visually-hidden">货运单列表</h2>
       {{if .Orders}}