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)

templates/parts/home-layout.php

@@ -1,6 +1,6 @@
 <?php
 /**
- * Fixed homepage layout inspired by Zibll.
+ * Fixed homepage layout inspired by legacy.
  *
  * @package AKSRT
  */

templates/parts/resource-download-box.php

@@ -83,7 +83,7 @@ if ($is_need_login && $allow_guest_buy) {
 
 $price_amount = (float) ($price_label['amount'] ?? $user_amount);
 
-// Zibll down_alone_page: single entry to independent download page.
+// legacy down_alone_page: single entry to independent download page.
 $alone_page = !empty($paid_settings['down_alone_page']) || !empty($paid_settings['download']['alone_page']);
 $alone_url = '';
 if ($alone_page && function_exists('aksrt_get_single_download_page_url')) {

templates/parts/resource-related.php

@@ -43,7 +43,7 @@ if (!$query->have_posts()) {
 	<header class="resource-related__header">
 		<h2 class="resource-related__title"><?php esc_html_e('相关资源', 'aksrt'); ?></h2>
 	</header>
-	<div class="resource-related__grid zib-widget">
+	<div class="resource-related__grid aksrt-panel">
 		<div class="swiper-container swiper-scroll">
 			<div class="swiper-wrapper">
 				<?php

templates/parts/single-author-bar.php

@@ -1,12 +1,12 @@
 <?php
 /**
- * Shared author info bar for single post content (Zibll article-avatar / user-info).
+ * Shared author info bar for single post content (legacy article-avatar / user-info).
  *
  * Contract: get_template_part(..., null, $args)
  *   show_actions  bool  Follow / PM buttons + meta row
  *   show_bio      bool  Append bio after time
  *   show_time     bool  Relative publish/update time (default true)
- *   meta_html     string Prebuilt Zibll single-metabox HTML
+ *   meta_html     string Prebuilt legacy single-metabox HTML
  *   meta_items    array  Legacy text meta items (fallback)
  *   extra_class   string
  *
@@ -48,7 +48,7 @@ $aksrt_msg_url = function_exists('aksrt_get_messages_page_url') ? aksrt_get_mess
 $login_url = function_exists('aksrt_get_login_url') ? aksrt_get_login_url() : wp_login_url(get_permalink());
 $is_self = is_user_logged_in() && get_current_user_id() === $author_id;
 
-// Identity: prefer aksrt_get_user_name (Zibll order); fall back to chips.
+// Identity: prefer aksrt_get_user_name (legacy order); fall back to chips.
 	$identity_chips = '';
 	$name_html = '';
 	if (function_exists('aksrt_get_user_name')) {

templates/parts/submit/sidebar-submit.php

@@ -13,7 +13,7 @@ $edit_post = $ctx['edit_post'];
 $status = (string) $ctx['post_status'];
 $can_draft = !empty($ctx['user_id']) && empty($ctx['is_guest']) && !empty($settings['draft_save']);
 if ($edit_post && in_array($status, ['publish', 'pending'], true)) {
-	// Still allow draft button? zibll hides draft for publish/pending.
+	// Still allow draft button? legacy hides draft for publish/pending.
 	$can_draft = false;
 }
 ?>

templates/parts/user-home/sidebar.php

@@ -2,7 +2,7 @@
 /**
  * Public user home — page-owned sidebar.
  *
- * Zibll public author page has no private-dashboard sidebar
+ * legacy public author page has no private-dashboard sidebar
  * (主页概览 / 快捷入口 / 交易服务). Those belong on 用户中心 only.
  * This part is intentionally a no-op for 1:1 author parity.
  *

templates/parts/user/author-hero.php

@@ -2,7 +2,7 @@
 /**
  * Author Hero — shared hero section for author archive and public user homepage.
  *
- * Aligns with Zibll zib_author_header(): cover, avatar, name, identity, desc,
+ * Aligns with legacy(): cover, avatar, name, identity, desc,
  * and header actions. Content stats live in the tab bar, not a body stats row.
  *
  * Contract: get_template_part(..., null, $args)
@@ -112,7 +112,7 @@ $pm_url = ($pm_enabled && $messages_url !== '')
 			<?php endif; ?>
 
 			<?php
-			// Zibll parity: the badge overview leads the identity row.
+			// legacy parity: the badge overview leads the identity row.
 			$city_badge = function_exists('aksrt_get_user_city_badge_html')
 				? aksrt_get_user_city_badge_html($user_id, 'user_home', 'badg')
 				: '';