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/js/homepage-fixed.js

@@ -1,8 +1,8 @@
 /**
- * Homepage Fixed - Interactive Layer (v2.0 Zibll-aligned)
+ * Homepage Fixed - Interactive Layer (v2.0 legacy-aligned)
  *
  * Unified AJAX protocol for homepage tabs, sort, and pagination.
- * Uses Zibll-style ajaxpager DOM conventions and custom event flow:
+ * Uses legacy-style ajaxpager DOM conventions and custom event flow:
  *   post_ajax.before → fetch → post_ajax.ed → aksrt:posts:rendered
  *
  * @package AKSRT
@@ -144,7 +144,7 @@
 	}
 
 	/* ============================================================
-	 * Zibll-style event dispatching
+	 * legacy-style event dispatching
 	 * ============================================================ */
 
 	/**
@@ -286,7 +286,7 @@
 	/**
 	 * Core AJAX loader. Shared by tab switch, sort change, pagination, and widget tabs.
 	 *
-	 * Dispatches the full Zibll-aligned event lifecycle:
+	 * Dispatches the full legacy-aligned event lifecycle:
 	 *   1. post_ajax.before  (before fetch)
 	 *   2. [inject HTML]
 	 *   3. post_ajax.ed      (after inject, before hydrate)
@@ -469,7 +469,7 @@
 					}
 				});
 
-				// Load content if needed (lazy AJAX load like Zibll)
+				// Load content if needed (lazy AJAX load like legacy)
 				// For tab panels, the "loaded sort" check uses tabOrderby, not main stream sort
 				var effectiveSort = tabOrderby || currentSort;
 				if (panel && (panel.dataset.loaded !== 'true' || panel.dataset.loadedSort !== effectiveSort)) {
@@ -497,7 +497,7 @@
 					panel.id = panel.id || buttonId + '-panel';
 					panel.setAttribute('aria-labelledby', button.id);
 					button.setAttribute('aria-controls', panel.id);
-					// Add ajaxpager class for Zibll DOM convention
+					// Add ajaxpager class for legacy DOM convention
 					panel.classList.add('ajaxpager');
 				}