Adds a new top section to STATUS.md covering v1.7.43-alpha:
- Round 3: phase-based install progress bar
- Round 4: post-install scanner kick for instant Launch button
- Round 5: .23 VPS retirement, .168 promoted to Server 1
- Config migration: auto-purge .23 from saved registry/mirror JSONs
- Changelog: new v1.7.43-alpha entry in AccountInfoSection
All 5 commits, deployment md5, verification notes, and git remote
cleanup captured. Round 2 rollback command still valid for the full
stack since backups predate every round in this session.
f9fef8d2cc