docs: 简化左侧导航栏，移除前言分类的自动生成索引页

1ssqq1lxr · 1ssqq1lxr · commit cfe1d228b64c · 2025-10-12T13:10:08.000+08:00
diff --git a/sidebars.js b/sidebars.js
@@ -19,9 +19,6 @@ const sidebars = {
     {
       type: 'category',
       label: '前言',
-      link: {
-        type: 'generated-index',
-      },
       items: [
         'product/introduction',
         'product/core'
