feat(admin): 短信配置独立页+短信宝支持；后台顶部面包屑导航优化

frontend/src/App.tsx

@@ -28,6 +28,7 @@ const AdminDashboard = React.lazy(() => import('@/pages/admin/Dashboard'));
 const AdminUsers = React.lazy(() => import('@/pages/admin/Users'));
 const AdminModels = React.lazy(() => import('@/pages/admin/Models'));
 const AdminSiteSettings = React.lazy(() => import('@/pages/admin/SiteSettings'));
+const AdminSmsConfig = React.lazy(() => import('@/pages/admin/SmsConfig'));
 const AdminPayment = React.lazy(() => import('@/pages/admin/Payment'));
 const AdminServices = React.lazy(() => import('@/pages/admin/Services'));
 const AdminMembership = React.lazy(() => import('@/pages/admin/Membership'));
@@ -130,6 +131,7 @@ const App: React.FC = () => {
             <Route path="users" element={<AdminUsers />} />
             <Route path="models" element={<AdminModels />} />
             <Route path="settings" element={<AdminSiteSettings />} />
+            <Route path="sms" element={<AdminSmsConfig />} />
             <Route path="payment" element={<AdminPayment />} />
             <Route path="services" element={<AdminServices />} />
             <Route path="membership" element={<AdminMembership />} />