compute: stream results
Created by: rvantonder
Implements .api/compute/stream
with the basic functionality.
Part of https://github.com/sourcegraph/sourcegraph/issues/30527
Not used by anything right now (integration tests will follow later), and there are follow up items to address in subsequent PRs, see inline comments. I thought about feature flagging the endpoint, but since it's unused/undocumented that can also be a follow up if needed.