feat: tenant-scoped routing and portal navigation

frontend/portal/src/views/misc/NotFoundView.vue

@@ -8,9 +8,17 @@
       <h1 class="text-4xl font-bold text-slate-900 mb-4">404</h1>
       <p class="text-xl text-slate-600 mb-8">抱歉，您访问的页面走丢了。</p>
       <div class="flex justify-center gap-4">
-        <router-link to="/" class="px-6 py-3 bg-primary-600 text-white rounded-lg hover:bg-primary-700 transition-colors">返回首页</router-link>
+        <router-link :to="tenantRoute('/')" class="px-6 py-3 bg-primary-600 text-white rounded-lg hover:bg-primary-700 transition-colors">返回首页</router-link>
         <button @click="$router.back()" class="px-6 py-3 border border-slate-300 text-slate-700 rounded-lg hover:bg-slate-50 transition-colors">返回上一页</button>
       </div>
     </div>
   </div>
 </template>
+
+<script setup>
+import { useRoute } from 'vue-router';
+import { tenantPath } from '../../utils/tenant';
+
+const route = useRoute();
+const tenantRoute = (path) => tenantPath(path, route);
+</script>