Switch GitHub worker to white and start nightly regression

[vgene]

By the end of this week, we need

• Create GitHub build environment on white
• For both CPF and SCAF, do automatic build test
• Start nightly regression
• Automatically sync results to the AWS server

[vgene]

Regression running nightly automatically. Currently, needs to manually sync the results to the AWS server to update visualization on http://13.58.206.207:8050/