Taper the NPC torso into the hips

MEMORY.md

@@ -86,6 +86,10 @@ Session memory for durable decisions, state, and gotchas. Keep concise, remove o
   (`_shape_head_mesh`) around a chin plate and cheekbones. This avoids dark AO intersection rings.
   Moved lips forward to stay on the reshaped surface. Latest review sheet:
   `sheet_npc_baseline_compare-face.jpg`; max character is now 4,754 tris / 4,574 verts.
+- **NPC torso/hip transition (0.9.4, 2026-11-02):** pelvis radius 0.165→0.168, waist
+  0.150→0.146, chest 0.170→0.168, upper chest 0.172→0.170. This is a subtle shirt taper, not a
+  skeleton change; all proportions pass and `sheet_npc_baseline_compare-torso.jpg` records it.
+  Max character is 4,754 tris / 4,584 verts.
 - **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