[Feature]: support reap

### Feature Description

https://github.com/CerebrasResearch/reap

### Motivation and Use Case

~

### Alternatives Considered

_No response_

### Definition of Done

_No response_

### Additional Context

_No response_

Start by reviewing the linked reap project and the auto-round repository to determine what “support reap” should integrate with. Identify the relevant integration entry points and define the expected behavior and tests before implementation; the issue currently provides no definition of done or file references.

Written by the indexing model from the issue text.