[Feature]: 内置清华课程学习资料

### Problem or Motivation

总是要其他地方手动下载资料然后再上传，感觉不便

### Proposed Solution

能够内置清华课程，从而对该课程生成学习路线、重点、报表

### Alternatives Considered

_No response_

### Area

Classroom generation

### Additional Context

_No response_