Keep aloha1(+pp), dance1(+pp), hakadance1. Archive hakadance2, alohaOG,
firedance1, hakaOG (all variants) to archive/. New dances get provisional
nd## ids at conversion; rename to a dance code (haka01 etc.) only on
adoption via tools/rename_clip.py. Registry: docs/dances/REGISTRY.md.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
