fix: 用户端订单列表只显示支付渠道，不显示提供商

管理后台仍保留提供商信息显示

src/components/MobileOrderList.tsx

@@ -114,10 +114,7 @@ export default function MobileOrderList({
                 </span>
               </div>
               <div className={['mt-1 text-sm', isDark ? 'text-slate-300' : 'text-slate-600'].join(' ')}>
-                {(() => {
-                  const { channel, provider } = getPaymentDisplayInfo(order.paymentType);
-                  return provider ? `${channel} · ${provider}` : channel;
-                })()}
+                {getPaymentDisplayInfo(order.paymentType).channel}
               </div>
               <div className={['mt-0.5 text-xs', isDark ? 'text-slate-400' : 'text-slate-500'].join(' ')}>
                 {formatCreatedAt(order.createdAt)}