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)

assets/css/routes/links.css

@@ -1,5 +1,5 @@
 /**
- * AKSRT 网址导航 — zibll links page shell/styles.
+ * AKSRT 网址导航 — legacy links page shell/styles.
  *
  * @package AKSRT
  */
@@ -9,7 +9,7 @@
 	padding: 0 15px 10px;
 }
 
-.links-box:not(.zib-widget):not(.links-style-simple):not(.links-style-image) {
+.links-box:not(.aksrt-panel):not(.links-style-simple):not(.links-style-image) {
 	margin: -5px;
 	display: flex;
 	flex-wrap: wrap;
@@ -33,7 +33,7 @@
 	text-align: center;
 }
 
-.links-box:not(.zib-widget) .links-card {
+.links-box:not(.aksrt-panel) .links-card {
 	background: var(--main-bg-color, var(--surface-1, #fff));
 }
 
@@ -109,8 +109,8 @@
 }
 
 /* ---- fixed category nav ---- */
-.fixed-wrap .fixed-wrap-nav.zib-widget,
-.link-nav-box .zib-widget {
+.fixed-wrap .fixed-wrap-nav.aksrt-panel,
+.link-nav-box .aksrt-panel {
 	padding: 8px 15px;
 }
 
@@ -415,7 +415,7 @@
 		display: block;
 	}
 
-	.link-nav-box > .zib-widget {
+	.link-nav-box > .aksrt-panel {
 		background: transparent;
 		box-shadow: none;
 		padding: 0;