* feat: Add bufferring to provisioner job logs
This should improve overall build performance, and especially under load.
It removes the old `id` column on the `provisioner_job_logs` table
and replaces it with an auto-incrementing big integer to preserve order.
Funny enough, we never had to care about order before because inserts
would at minimum be 1ms different. Now they aren't, so the order needs
to be preserved.
* Fix log bufferring
* Fix frontend log streaming
* Fix JS test
The first updateJob should be called after the first printStage to
guarantee that only stage prints can get erased and overwritten,
otherwise there could be an unrelated line that gets erased.
fixes#3967
* feat: Add stage to build logs
This adds a stage property to logs, and refactors the job logs
cliui.
It also adds tests to the cliui for build logs!
* Fix comments
