The rename was mostly a set of decisions about what NOT to touch: 239 domain
references, the Kotlin package, the applicationId and period.db all stay,
because "Period" is the central domain word as well as the old product name.
Records the two things a later reader would otherwise retry: the Command Center
slug cannot be changed (PATCH accepts the field and ignores it, and recreating
the project to change an invisible internal key would throw away its history),
and three names have to agree — repository, git remote, and the site's
forgejoRepo mapping — with the third being the one that fails silently.
Issue #9's body named the old repository path and has been corrected in the
tracker, so the command in it works for whoever picks it up.
b338380cb2