feat(nav): deep-align menu_search panel, pill radius, senior media

- Layout-2 remote-box AJAX panel (history/hot/posts) via aksrt_menu_search
- Live suggestions for post/topic/product; local history for guests
- Publish radius switch (zibll bool pill) mapped to CSS radius class
- Senior menu editor: WP media library image picker
- Active menu underline + panel CSS; acceptance/contract updates

src/AKSRT/Admin/NavMenuOptions.php

@@ -25,6 +25,7 @@ class NavMenuOptions {
 		if (!file_exists($path)) {
 			return;
 		}
+		wp_enqueue_media();
 		wp_enqueue_script(
 			'aksrt-admin-nav-menu-senior',
 			get_template_directory_uri() . '/assets/js/admin-nav-menu-senior.js',