Raise NPC texture maps to 256

TODO.md

@@ -70,8 +70,10 @@ Compatibility/Web parity, deterministic assets and offline CI.
 
 ### Character and prop textures
 
-- [ ] Audit NPC skin, cloth, pants, hair and gear albedo/normal/AO maps in portraits;
-      refine fabric weave, skin variation and fixed detail materials.
+- [-] Audit NPC skin, cloth, pants, hair and gear albedo/normal/AO maps in portraits;
+      refine fabric weave, skin variation and fixed detail materials. (256² maps are built and
+      all eight characters rebuilt; the large fabric/UV pattern and skin/fixed-detail audit are
+      still open.)
 - [ ] Re-bake AO where geometry changes; verify the 256² maps and material wiring.
 - [ ] Audit library props and UI/card/icon textures at their actual screen sizes;
       remove blurry/oversized or unused textures where safe.