refactor(assets): vendor 资产迁入标准目录并全仓去除 zibll 标识

- assets/vendor 全量迁移: fontawesome5→assets/fontawesome5, css→assets/css,
  js→assets/js/runtime(避开 14 个同名自有文件), img 合并去重→assets/img,
  fonts→assets/fonts; 删除 assets/vendor
- libs 五个与 widgets/third-party 字节相同的库不重复入库, loader paths 改指向
- 运行时切换: _win.uri=assets 根, loader baseUrl=/js/runtime, enlighter 注入
  路径同步; PHP 7 个引用文件切换并改名 $zibll_*→$runtime_*
- 去品牌: Qinver 头注释/品牌 console.log/演示链接清除, 默认文案中性化
- 功能标识符改名: zib__→aksrt__, zib_ajax→aksrt_ajax, window.zib→
  window.aksrtLegacy, zibllblock/*→aksrtblock/*, .zib-widget→.aksrt-panel,
  .zib-slider→.aksrt-slider, zib_menu_options meta 键等
- 自有 CSS 改名: legacy-utilities/compat-vars/footer shell
- admin SPA 重建; 契约测试同步(路径/断言/文件更名)
- 例外保留: tests/visual 对照环境与 fixtures 前缀(外部 Zibll 产品引用)

验证: php -l 133 个改动文件通过; runtime 86 个 JS node --check 通过;
契约测试 68/70(2 个失败经 stash 对照确认为存量问题)

inc/helpers/comments/item.php

@@ -1,9 +1,9 @@
 <?php
 /**
- * Comment list item renderer — Zibll DOM contract (1:1).
+ * Comment list item renderer — legacy DOM contract (1:1).
  *
- * Mirrors zib_comments_list / zib_get_comment_header / zib_get_comment_footer
- * from zibll/inc/functions/zib-comments-list.php.
+ * Mirrors legacy / legacy / legacy
+ * from the legacy comments-list module.
  *
  * @package AKSRT
  */
@@ -12,7 +12,7 @@ defined('ABSPATH') || exit;
 
 if (!function_exists('aksrt_get_comment_like_html')) :
 	/**
-	 * Header like control (zibll: zib_get_comment_like).
+	 * Header like control (legacy: legacy).
 	 *
 	 * @param WP_Comment $comment Comment.
 	 * @param bool       $enabled Like enabled.
@@ -43,7 +43,7 @@ endif;
 
 if (!function_exists('aksrt_get_comment_avatar_box')) :
 	/**
-	 * Comment avatar box (zibll: zib_get_comment_avatar_box).
+	 * Comment avatar box (legacy: legacy).
 	 *
 	 * @param WP_Comment $comment Comment.
 	 * @param string     $class   Classes for the avatar wrapper.
@@ -74,7 +74,7 @@ endif;
 
 if (!function_exists('aksrt_get_comments_user_name_html')) :
 	/**
-	 * Name row (zibll: zib_get_comments_user_name) — topping + author + badges.
+	 * Name row (legacy: legacy) — topping + author + badges.
 	 *
 	 * @param WP_Comment           $comment  Comment.
 	 * @param array<string,mixed>  $settings Display settings.
@@ -118,7 +118,7 @@ endif;
 
 if (!function_exists('aksrt_get_comment_header_html')) :
 	/**
-	 * Comment header (zibll: zib_get_comment_header).
+	 * Comment header (legacy: legacy).
 	 *
 	 * @param WP_Comment          $comment  Comment.
 	 * @param array<string,mixed> $settings Settings.
@@ -142,7 +142,7 @@ endif;
 
 if (!function_exists('aksrt_get_comments_action_dropdown_html')) :
 	/**
-	 * More-actions menu (zibll: zib_get_comments_action_list) — pin / edit / approve / delete.
+	 * More-actions menu (legacy: legacy) — pin / edit / approve / delete.
 	 *
 	 * @param WP_Comment $comment Comment.
 	 * @param int        $depth   Depth.
@@ -158,7 +158,7 @@ if (!function_exists('aksrt_get_comments_action_dropdown_html')) :
 
 		if (!empty($perms['can_pin']) && (int) $comment->comment_parent === 0) {
 			$label  = $is_pinned ? __('取消置顶', 'aksrt') : __('设置置顶', 'aksrt');
-			// 不带 zibll 的 wp-ajax-submit 类：vendor main.min.js 会全局代理该类并向
+			// 不带 legacy 的 wp-ajax-submit 类：vendor main.min.js 会全局代理该类并向
 			// admin-ajax 发空 action 请求（400 "0"），置顶走 data-comment-action REST。
 			$lists .= '<li><a class="comment-topping" data-comment-action="pin" data-pinned="' . ($is_pinned ? '1' : '0') . '" href="javascript:;"><i class="fa fa-thumbtack mr10 fa-fw" aria-hidden="true"></i>' . esc_html($label) . '</a></li>';
 		}
@@ -187,7 +187,7 @@ endif;
 
 if (!function_exists('aksrt_get_comment_footer_html')) :
 	/**
-	 * comt-meta row (zibll: zib_get_comment_footer).
+	 * comt-meta row (legacy: legacy).
 	 *
 	 * @param WP_Comment          $comment  Comment.
 	 * @param array               $args     wp_list_comments args.
@@ -256,7 +256,7 @@ endif;
 
 if (!function_exists('aksrt_get_comments_list_html')) :
 	/**
-	 * Single comment item HTML (zibll: zib_get_comments_list).
+	 * Single comment item HTML (legacy: legacy).
 	 *
 	 * @param WP_Comment $comment Comment.
 	 * @param array      $args    Args.
@@ -288,7 +288,7 @@ endif;
 
 if (!function_exists('aksrt_comment_callback')) :
 	/**
-	 * Canonical wp_list_comments callback (zibll: zib_comments_list).
+	 * Canonical wp_list_comments callback (legacy: legacy).
 	 *
 	 * The closing </li> is emitted by the walker after children.
 	 *