Smooth the NPC neck and shoulder transition

MEMORY.md

@@ -76,6 +76,11 @@ Session memory for durable decisions, state, and gotchas. Keep concise, remove o
   stylized guide in `docs/npc-proportion-audit.md`; head ~0.190 (upper 0.22) and broad-build
   shoulders ~0.370/hip ~0.225 are near the upper bounds, not outliers. No skeleton/mesh rescale was
   needed; run the report after any body change.
+- **NPC neck/shoulder transition (0.9.4, 2026-11-02):** the body graph uses a fuller neck base
+  (1.43 m, radius 0.074/0.072), a taller/thicker neck top and a shoulder root lowered from 1.39 to
+  1.37 m. A final triangulate + tiny-face delete in `build_character` removes zero-area triangles
+  that the new neck branch exposed in jacket/hoodie. All eight GLBs and AO maps were rebuilt;
+  `npc_proportions.py` still passes and `sheet_npc_baseline_compare-body.jpg` is the review image.
 - **UI flow smoke (2026-11-02):** `smoke_ui_flows.gd` boots the real scene and
   exercises inspection allow/deny, normal vs emergency radio, Help filtering,
   wand allow/deny and review return-to-menu. Keep this smoke in the 0.9.6