chore: add changelog route

Author: uyarn

packages/tdesign-react-aigc/CHANGELOG.en-US.md

@@ -18,10 +18,6 @@ spline: explain
 - **ChatMarkdown**: The issue of increased packaging size caused by dependency on CherryMarkdown has been significantly resolved. Highlighting for code blocks is no longer built-in; businesses need to introduce this functionality manually via configuration @LzhengH @carolin913 ([#4119](https://github.com/Tencent/tdesign-react/pull/4119)).
 - **ChatSender**: The `readyToSend` property now allows for pre-sending validation to be handled  @LzhengH ([#4119](https://github.com/Tencent/tdesign-react/pull/4119).
 
-### 📝 Documentation
-
-- For **ChatEngine**, AI-friendly documentation has been added: AGENTS.md and llm.txt @carolin913 ([#4119](https://github.com/Tencent/tdesign-react/pull/4119))
-
 ## 🌈 1.0.0 `2026-11-20`
 
 - Release 1st version

packages/tdesign-react-aigc/CHANGELOG.md

@@ -18,10 +18,6 @@ spline: explain
 - `ChatMarkdown`: 大幅优化依赖CherryMarkdown造成的打包体积膨胀问题，**不再内置highlight代码块样式高亮**，需要业务自行引入配置 @LzhengH @carolin913 ([#4119](https://github.com/Tencent/tdesign-react/pull/4119))
 - `ChatSender`: 支持readyToSend可以接管发送前校验  @LzhengH ([#4119](https://github.com/Tencent/tdesign-react/pull/4119))
 
-### 📝 Documentation
-
-- `ChatEngine`: 增加AI友好型文档：AGENTS.md和llm.txt @carolin913 ([#4119](https://github.com/Tencent/tdesign-react/pull/4119))
-
 ## 🌈 1.0.0 `2026-11-20`
 
 - Release 1st version

packages/tdesign-react-aigc/site/site.config.mjs

@@ -18,6 +18,13 @@ export const docs = [
         path: '/react-chat/getting-started',
         component: () => import('./docs/getting-started.md'),
       },
+      {
+        title: '更新日志',
+        titleEn: 'Changelog',
+        name: 'changelog',
+        path: '/react-chat/changelog',
+        component: () => import('../CHANGELOG.md'),
+      },
       {
         title: '什么是流式输出',
         titleEn: 'SSE',