feat(nav): complete remaining zibll parity (search, i18n, senior menus, CSS)

- Remove obsolete dual-path nav CSS; add utilities + language dropdown styles
- Wire header/mobile translate switcher from i18n config
- Layout-2 inline search hot keywords panel; nav_folding on resize
- NavMenuOptions JSON editors for graphic_card / multi_column_links
- Section-navs zibll posts-nav-lists; page-navs enqueue; mobile article TOC box
- SPA/PHP user-card publish type; rebuild admin assets

src/AKSRT/Core/ScriptsPart1b.php

@@ -475,6 +475,17 @@ trait ScriptsPart1b {
 
         // 文章导航页（zibll postsnavs.php）
         if (is_page_template('templates/pages/page-posts-navs.php')) {
+            $page_navs_js = get_template_directory() . '/assets/js/page-navs.js';
+            if (file_exists($page_navs_js)) {
+                wp_enqueue_script(
+                    'aksrt-page-navs',
+                    $base_uri . '/assets/js/page-navs.js',
+                    [],
+                    (string) filemtime($page_navs_js),
+                    true
+                );
+            }
+
             $pn_css = get_template_directory() . '/assets/css/routes/posts-navs.css';
             if (file_exists($pn_css)) {
                 wp_enqueue_style(