## Summary / 变更摘要

<!-- What changed? 哪些内容发生了变化？ -->

## Type / 类型

- [ ] Bug fix / Bug 修复
- [ ] Feature / 新功能
- [ ] Lesson content / 课程内容
- [ ] Translation or proofreading / 翻译或校对
- [ ] Quiz or glossary / 测验或术语表
- [ ] AI-native artifacts or MCP / AI 入口或 MCP
- [ ] Growth, community, or sponsorship docs / 增长、社区或赞助文档
- [ ] Refactor or tooling / 重构或工具

## Scope / 影响范围

<!-- List affected files, lessons, routes, modules, or audiences. 写清楚影响的文件、课程、页面、模块或受众。 -->

## Related Issue / 相关 Issue

<!-- Example: Closes #123. If no issue exists, explain why. -->

Closes #

## Verification / 验证

- [ ] Markdown preview or docs-only review
- [ ] `npx prettier --check <changed-files>`
- [ ] `npm test`
- [ ] `npm run lint`
- [ ] `npm run build`
- [ ] `npm run ai:index`
- [ ] `npm run ai:publish`
- [ ] `npm run ai:verify`
- [ ] Not applicable; reason:

## Content And Safety / 内容与安全

- [ ] Beginner-facing wording is clear.
- [ ] Technical claims include sources or are already covered by existing course context.
- [ ] No investment advice, yield promises, token promotion, or undisclosed ads.
- [ ] Chinese and English terminology stays aligned when both languages are affected.
- [ ] AI-native changes keep MCP tools read-only and citeable.

## Screenshots / 截图

<!-- Add screenshots for UI changes. UI 修改请提供截图。 -->

## Notes For Reviewers / Reviewer 备注

<!-- Anything reviewers should pay special attention to? -->
