## What changed?
- initial protobufs for the V2 (CHASM) scheduler
## Why?
- initial pass at internal protobufs for CHASM scheduler
## How did you test it?
- No tests for the protobufs themselves
## Potential risks
- New fields in new structs, **except** for `RequestId` on
`BufferedStart`. As a completely new field the V1 scheduler won't look
at, I don't think there's a risk.