fix：禁止重复提交退款申请提示

zhengyuxuan

2025-03-24 d97ab36d735e1c780908f03e5d466791e70f66c1

 LifePayment/LifePayment.Domain/WeChat/WxClient.cs

@@ -40,7 +40,7 @@
            return result;
        }

        public async Task<TResult> RefundsPostAsync<TInput, TResult>(TInput input, string function)
        public async Task<TResult> NomalPostAsync<TInput, TResult>(TInput input, string function)
        {
            var client = HttpClientFactory.CreateClient(LifePaymentConstant.WxPayHttpClientName);
            var body = JsonConvert.SerializeObject(input);