feat:额外收费

lib/common/api/wallet_api.dart

@@ -1,6 +1,18 @@
 import 'package:pj_supermarket_cloud/common/index.dart';
 
 abstract class WalletApi {
+  /// 优惠列表
+  static Future<List<DiscountsItem>?> getDiscountsListByUserId(
+    dynamic params,
+  ) async {
+    final res = await HttpManage().dio.get(
+          "/wallet/wallet-setting/ad/get-discounts-list",
+          queryParameters: params,
+        );
+    if (res.data == null) return null;
+    return (res.data as List).map((e) => DiscountsItem.fromJson(e)).toList();
+  }
+
   /// 支付配置
   static Future<ServicePaySetting?> getPaySetting() async {
     final res = await HttpManage().dio.get(