Fix the MPFB prototype neck and ankle junctions

MEMORY.md

@@ -33,14 +33,15 @@ canonical implemented-features list in `docs/development-status.md`.
   points/weights, removes the rig, applies the helper MASK, scales to 1.81 m, retargets the A-pose
   arms to the contract wrist, cuts the neck at 1.505, decimates, bisects the clothing boundaries,
   paints the five slots, adds a short neck flare, project hands, rounded shoes and cuffs, the
-  accepted head and the 14-bone contract armature. Current output: **15,333 tris / 9,241 raw verts /
-  13,314 seam-split verts / 1.810 m / 14 bones / 10 materials**; `inspect` clean and feet grounded.
-  **Not accepted yet:** the decimated neck stub is boxy under the accepted head, the shoes are
-  block-shaped, the ankles taper to points above them, and the shirt hem forms a V at the crotch.
-  A torus collar, a cloth cylinder collar and a skin neck-blend sphere were all tried and removed:
-  they read as a brace, a shelf or a donut. The prototype uses flat slot colours because the
-  one-shot MPFB UV unwrap does not match the per-slot NPC atlases. Renders:
-  `tmp/npc-parts/mpfb_proto/renders55/`; body-only: `body_only.glb`.
+  accepted head and the 14-bone contract armature. Current output: **15,373 tris / 13,552 glTF
+  verts / 13,560 seam-split verts / 1.810 m / 14 bones / 10 materials**; `inspect` clean and feet
+  grounded. The neck is now a radial cut of the decimated column plus a wide 20-segment skin cone
+  (lower cone painted cloth, reads as a V-neck); the ankles are hidden by a 0.14 m shoe shell and a
+  0.10 m pant cuff. Earlier torus collar, cloth cylinder collar and skin neck-blend sphere attempts
+  were removed: they read as a brace, a shelf or a donut. Remaining polish: block-shaped shoes,
+  V-shaped shirt hem at the crotch, skin-tight shirt, angular thigh facets. The prototype uses flat
+  slot colours because the one-shot MPFB UV unwrap does not match the per-slot NPC atlases.
+  Renders: `tmp/npc-parts/mpfb_proto/renders60/`; body-only: `body_only.glb`.
 - **Project agent skills (2026-11-03):** two tracked skills live in `.agents/skills/`:
   `gig-line-blender-asset-contract` and `gig-line-release-qa`. They are guidance only,
   add no runtime dependency and are referenced from `tools/README.md`. The third-party