Investigate overlap with webdev, web build

[davidmorgan]

Some questions:

• Why do we have build_runner serve and webdev serve?
• What does webdev add, could it move into build_runner?
• Is webdev the only daemon client?

Edit: I guess I'll include in this issue, the web build in general, it does a lot of complex stuff with scratch_space, could that be supported in build_runner more directly--and in particular, in a composable way?

[simolus3]

Is webdev the only daemon client?

jaspr_cli from the jaspr project is also a build_daemon client.

[davidmorgan]

Thanks!

Yes, I should have mentioned jaspr, I think figuring out why jaspr needs to run like that is part of the same question :)