Retire the NPC review pages after owner acceptance and repoint every reference

docs/npc-model-sourcing.md

@@ -236,7 +236,9 @@ Two source quirks shaped the bake:
 - the upstream materials are named `Skin`/`Purple`/`LightBlue`/`White`/`Hair`, so the five-slot
   contract is applied as a rename, not a re-author.
 
-The face and silhouette gate sheet is in [`screens/npc-face-gate/`](screens/npc-face-gate/README.md).
+The face/silhouette gate that chose the full swap is recorded in the follow-up decision of
+[ADR-0018](adr/0018-quaternius-stage2-runtime-rig.md); its comparison sheets were retired with the
+review pages.
 
 ## Shipped roster (0.9.9, owner chose the full swap)
 
@@ -320,5 +322,5 @@ from `tmp/` after the pivot; the measurements and decisions remain in
 - [ADR-0017: Quaternius NPC base](adr/0017-quaternius-npc-base.md)
 - [ADR-0016: 24,000-triangle character budget](adr/0016-npc-character-budget-24k.md)
 - [Blender asset contract](architecture.md#character-and-gear-asset-contract)
-- [`3d-model-review.md`](3d-model-review.md), [`npc-visual-review.md`](npc-visual-review.md)
+- [`3d-model-review.md`](3d-model-review.md)
 - [`asset-tooling.md`](asset-tooling.md)