host-nav：跳转标记只用真实 localStorage（maternal-bridge 镜像层会换掉 window.localStorage）+ cookie 兜底

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

topic/zhichang/index.html

@@ -205,7 +205,7 @@ html.cm:not(.cm-all) .cm-more{display:flex;align-items:center;justify-content:ce
 <!-- 11-04 计算器模式（calc=1）走分步：一步一题、最后出结果，见 ../_shared/wizard.js -->
 <link rel="stylesheet" href="../_shared/wizard.css?v=26110464">
 <script src="../_shared/wizard.js?v=26110464"></script>
-<script src="../../js/host-nav.js?v=26110907"></script>
+<script src="../../js/host-nav.js?v=26110908"></script>
 </head>
 <body>
 <svg class="hide" aria-hidden="true" xmlns="http://www.w3.org/2000/svg">