gather feedback re decoupling bootstrap progress numbers from BOOTSTRAP_STATUS enum values
If we start reporting intermediate bootstrap phases, for example when reporting PT status when connecting to the Tor network through a PT bridge (#25502 (moved)), there aren't many numbers remaining to insert between some existing phases (if we stick to integers).
We should decouple these so we don't have to cram everything into a tiny portion of the progress bar. It also doesn't make sense to report progress phases that we will never need to execute.
Alternatively, renumber the enums to give us more space toward the beginning of the progress bar.