fix(theme): align reference layouts and restore passing contracts

Align homepage and category discovery, modern widgets, admin controls, quotes, and comments with the reference theme. Remove superseded paths and add rendering and behavior coverage. Update stale asset and finance contracts; all 760 Node tests and 139 widget assertions pass.

assets/admin/src/schema/sections/post-list/page.js

@@ -146,7 +146,7 @@ export const pageSchema = {
           key: 'yiyan_intro',
           type: 'content',
           ui_only: true,
-          content: '<p class="aksrt-hint"><b>精彩一言功能：</b>随机显示中英文的文案，在此支持一言内容插入到文章页位置，同时可以使用小工具模块调用。<br/>主题默认调用的文件为：<code>themes/aksrt/yiyan/qv-yiyan.txt</code><br/>您可以将以上文件复制到 <code>wp-content</code> 文件夹，并重命名为 <code>yiyan.txt</code>，再进行修改或添加内容，则今后更新主题就无需二次修改</p>',
+          content: '<p class="aksrt-hint"><b>精彩一言功能：</b>随机显示中英文文案，可插入文章页或添加“一言”小工具。默认句库位于 <code>themes/aksrt/yiyan/qv-yiyan.txt</code>。您也可以将自定义句库保存为 <code>wp-content/yiyan.txt</code>，更新主题时即可保留自定义内容。</p>',
         },
         { key: 'yiyan_single_content_header', label: '文章内容头部显示一言', type: 'switch', default: false },
         { key: 'yiyan_single_content_footer', label: '文章内容尾部显示一言', type: 'switch', default: false },