Fix the MPFB prototype neck and ankle junctions

docs/npc-model-sourcing.md

@@ -55,12 +55,14 @@ The MakeHuman body should reuse the approved local head/hand parts rather than f
 a second face implementation.
 
 The current local MPFB full-body prototype (`tmp/npc-research/build_mpfb_npc.py`) assembles the
-accepted head on an MPFB 2.0.18 body at **15,333 / 16,000 tris**, 1.810 m, 14 bones and 10
-materials, with project hands, rounded shoe shells, accessory cuffs and flat slot colours. It is a
-review candidate, not a shipped asset: the decimated neck stub is boxy under the accepted head, the
-shoes remain block-shaped, the ankles taper above the shoe shells, and the shirt hem forms a V at
-the crotch. A torus collar, cloth cylinder collar and skin neck-blend sphere were tried and removed
-because they read as a brace, shelf or donut. The production integration decision (bake a committed
+accepted head on an MPFB 2.0.18 body at **15,373 / 16,000 tris**, 1.810 m, 14 bones and 10
+materials, with project hands, rounded shoe shells, pant cuffs, accessory cuffs and flat slot
+colours. It is a review candidate, not a shipped asset. The neck is a radial cut of the decimated
+column bridged by a wide 20-segment cone (lower cone painted cloth, reading as a V-neck); the ankles
+are hidden by raised shoe shells and pant cuffs. Remaining polish: block-shaped shoes, a V-shaped
+shirt hem at the crotch, a skin-tight shirt and angular thigh facets. A torus collar, cloth cylinder
+collar and skin neck-blend sphere were tried and removed because they read as a brace, shelf or
+donut. The production integration decision (bake a committed
 source GLB or keep the procedural body) and the owner review are tracked in `TODO.md`; MPFB itself
 must not become a CI/build dependency.