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/aksrt-icon-cards.php

@@ -1,6 +1,6 @@
 <?php
 /**
- * Icon card helpers (zibll zib_icon_card / zib_icon_cover_card).
+ * Icon card helpers (legacy / legacy).
  *
  * @package AKSRT
  */
@@ -136,7 +136,7 @@ if (!function_exists('aksrt_icon_cover_card')) :
 	 */
 	function aksrt_icon_cover_card(array $args = [], bool $echo = false): string {
 			$defaults = [
-				'class'             => 'zib-widget',
+				'class'             => 'aksrt-panel',
 				'icon'              => '',
 				'icon_size'         => 25,
 				'customize_icon'    => '',
@@ -174,7 +174,7 @@ if (!function_exists('aksrt_icon_cover_card')) :
 			}
 
 			$icon_fa = trim((string) $args['icon']);
-			// custom_icon (SPA) + customize_icon (zibll) + icon_image URL.
+			// custom_icon (SPA) + customize_icon (legacy) + icon_image URL.
 			$custom_src  = (string) ($args['custom_icon'] !== '' ? $args['custom_icon'] : $args['customize_icon']);
 			$icon_img    = esc_url_raw(trim((string) ($args['icon_image'] !== '' ? $args['icon_image'] : '')));
 			$custom_html = '';
@@ -196,10 +196,10 @@ if (!function_exists('aksrt_icon_cover_card')) :
 
 			$url    = esc_url(trim((string) ($link['url'] ?? '')));
 			$target = sanitize_text_field((string) ($link['target'] ?? ''));
-			// zibll only adds target= when non-empty; keep same for 1:1.
+			// legacy only adds target= when non-empty; keep same for 1:1.
 			$tgt = ($target !== '' && $target !== '_self') ? ' target="' . esc_attr($target) . '"' : '';
 
-			// zibll: class = "icon-cover-icon badg cir" + optional icon_class (may include radius4 / c-* / jb-*).
+			// legacy: class = "icon-cover-icon badg cir" + optional icon_class (may include radius4 / c-* / jb-*).
 			// Do NOT sanitize_html_class on the whole string — it collapses multi-token classes.
 			$icon_class_extra = trim(preg_replace('/\s+/', ' ', (string) $args['icon_class']));
 			$icon_class       = 'icon-cover-icon badg cir';
@@ -225,7 +225,7 @@ if (!function_exists('aksrt_icon_cover_card')) :
 			}
 
 			$icon_size = max(14, min(64, (int) $args['icon_size']));
-			// zibll always sets font-size on the icon badge.
+			// legacy always sets font-size on the icon badge.
 			$style = 'font-size: ' . $icon_size . 'px;';
 			$custom_color = sanitize_hex_color((string) $args['icon_custom_color']);
 			if ($custom_color) {
@@ -237,8 +237,8 @@ if (!function_exists('aksrt_icon_cover_card')) :
 			} elseif ($icon_img !== '') {
 				$icon_inner = '<img' . aksrt_get_lazy_attr('lazy_other', $icon_img, 'img-icon') . ' alt="">';
 			} else {
-				// zibll: zib_get_cfs_icon($args['icon'], 'em09') — keep FA class + em09.
-				if ($icon_fa !== '' && !str_contains($icon_fa, 'fa-') && !str_contains($icon_fa, ' ') && !str_starts_with($icon_fa, 'zibsvg-')) {
+				// legacy: legacy($args['icon'], 'em09') — keep FA class + em09.
+				if ($icon_fa !== '' && !str_contains($icon_fa, 'fa-') && !str_contains($icon_fa, ' ') && !str_starts_with($icon_fa, 'aksrtsvg-')) {
 					$icon_fa = 'fa fas fa-' . $icon_fa;
 				}
 				if (str_contains($icon_fa, '<')) {
@@ -254,7 +254,7 @@ if (!function_exists('aksrt_icon_cover_card')) :
 			}
 			$icon = '<div class="' . esc_attr(trim($icon_class)) . '" style="' . esc_attr($style) . '">' . $icon_inner . '</div>';
 
-			// zibll allows HTML in title/desc (admin stores badges etc.).
+			// legacy allows HTML in title/desc (admin stores badges etc.).
 			$title = (string) $args['title'];
 			$desc  = (string) $args['desc'];
 			$allow = [
@@ -277,7 +277,7 @@ if (!function_exists('aksrt_icon_cover_card')) :
 
 			$html = '';
 			if ($url !== '') {
-				// zibll: <a class="main-color" [target] href="...">
+				// legacy: <a class="main-color" [target] href="...">
 				$html .= '<a class="main-color" ' . ($tgt !== '' ? ltrim($tgt) . ' ' : '') . 'href="' . esc_url($url) . '">';
 			}
 			// Keep every horizontal icon card on the same compact visual contract,