Background
The repository already has a system-design section, but it would benefit from a more explicit case-study index for high-frequency backend interview topics.
Suggested scope
- 秒杀/高并发系统
- 消息队列异步解耦
- 缓存与数据库一致性
- 登录 / 认证体系
- 搜索与推荐基础架构
Why it matters
System design interviews often require structured scenario recall, not just scattered concept notes.
Background
The repository already has a system-design section, but it would benefit from a more explicit case-study index for high-frequency backend interview topics.
Suggested scope
Why it matters
System design interviews often require structured scenario recall, not just scattered concept notes.