Rewrite NPC plans around the Quaternius base

docs/development-status.md

@@ -34,8 +34,9 @@ and the active order/gaps in [`TODO.md`](../TODO.md).
 ## Known gaps
 
 - External first-time-player sessions and balance sweeps are not completed.
-- The NPC head/face/hand overhaul and MakeHuman body pipeline are planned, not
-  shipped.
+- The Quaternius NPC base migration is planned, not shipped. The current 12-character
+  procedural library and the MakeHuman head remain fallbacks until the Quaternius
+  12-variant baseline passes review.
 - Accessibility/localization acceptance, target-hardware profiling, macOS
   signing/notarization and AI/storefront legal approval remain open.
 - Live 3D replay, recorded VO/music, more venues and seasonal content are future