Refine NPC fabric UVs and remove baked AO blotches

docs/npc-visual-review.md

@@ -195,6 +195,8 @@ The refit backpack measures 380 triangles / 406 vertices.
   shaping is the accepted stylized construction.
 - The >26 m impostor remains a two-quad billboard; the LOD tier/hysteresis and
   near/far swap are covered by `test_avatar_mesh_budget_and_lod_swap`.
+- NPC fabric textures are 256² with a 4× UV repeat; cloth/pants skip the baked
+  per-character AO to avoid large portrait blotches. Skin, hair and gear keep AO.
 - Evening readability is represented by the day/night/LATE final-context set;
   LATE is the venue night variant.