fix(admin): replicate reference post-feature settings page 1:1

- Rewrite post_list/feature schema (PHP + JS) with the reference theme's
  field set, order, defaults and dependencies; print/PDF toggles dropped
- Move the migrated reference fields off the post-page schema (lightbox
  six switches, post like, default view/like ranges) to kill the dual path
- Map PostDisplay::get_post_page_settings() to the new keys without legacy
  fallback: imagelightbox* (pc_s/m_s checkboxes merged), post_like_s,
  post_default_mate ranges, article_nav + article_nav_mobile_nav_s
- Wire article_nav runtime: content data-nav/no-nav gate with per-post
  override, mobile drawer TOC box, imgbox_type config
- Seed random views/likes on new posts from post_default_mate ranges
- Keep the print stylesheet enqueued unconditionally (no switch); drop the
  dead print/PDF settings and needs_print requirement
- Add post-feature settings reference contract test

inc/helpers/header/aksrt-header-mobile.php

@@ -102,7 +102,14 @@ if (!function_exists('aksrt_nav_mobile_content')) :
 		echo $menu; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
 
 		if (is_singular('post')) {
-			echo '<div class="posts-nav-box" data-title="' . esc_attr__('文章目录', 'aksrt') . '"></div>';
+			$page = class_exists('\AKSRT\Settings\Settings')
+				? \AKSRT\Settings\Settings::get_post_page_settings()
+				: [];
+			$article_nav = !isset($page['article_nav']) || !empty($page['article_nav']);
+			$article_nav_mobile = !isset($page['article_nav_mobile']) || !empty($page['article_nav_mobile']);
+			if ($article_nav && $article_nav_mobile) {
+				echo '<div class="posts-nav-box" data-title="' . esc_attr__('文章目录', 'aksrt') . '"></div>';
+			}
 		}
 
 		// User box at bottom of drawer.