It appears that an explanation about the receipt model is written in the file schema/2024-11-30-ga/invoice.md.

> Please provide us with the following information:
> ---------------------------------------------------------------

### This issue is for a: (mark with an `x`)
```
- [ ] bug report -> please search issues before submitting
- [ ] feature request
- [x] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)
```

先阅读 schema/2024-11-30-ga/invoice.md，并检查现有的 receipt model 说明。Issue 未明确需要更改什么，因此请在编辑前明确预期的文档更新内容；仅凭 payload 无法确定是否完成。

由索引模型根据 Issue 内容生成。