实现多商户履约平台基础

frontend/src/layouts/MainLayout.tsx

@@ -20,6 +20,7 @@ import {
   MenuUnfoldOutlined,
   SendOutlined,
   ApiOutlined,
+  ShopOutlined,
 } from '@ant-design/icons'
 import { useAuth } from '../store/auth'
 import type { MenuProps } from 'antd'
@@ -40,10 +41,12 @@ export default function MainLayout() {
       { key: '/', icon: <DashboardOutlined />, label: '数据概览' },
       { key: '/skins', icon: <SkinOutlined />, label: '皮肤商品' },
       { key: '/orders', icon: <ShoppingOutlined />, label: '订单管理' },
+      { key: '/merchant-center', icon: <ShopOutlined />, label: '商户中心' },
     ]
     if (isAdmin) {
       items.push(
         { key: '/distributors', icon: <TeamOutlined />, label: '分销商' },
+        { key: '/platform-merchants', icon: <ShopOutlined />, label: '商户管理' },
         { key: '/ship-logs', icon: <SendOutlined />, label: '发货记录' },
         { key: '/open-api', icon: <ApiOutlined />, label: '开放接口' },
       )