Correct the MPFB prototype glTF vertex count

MEMORY.md

@@ -126,7 +126,7 @@ canonical implemented-features list in `docs/development-status.md`.
   elliptical opening. This removes the square collar, dark notches and wide brim. Remaining: a
   thin jaw crease and a hard shirt-shoulder point in three-quarter view. Do not re-add a torus,
   flat disk, collar shell or destructive neck smoothing; those were rejected.
-- **MPFB prototype count (2026-11-05):** 19,747 tris / 11,475 glTF verts / 1.810 m / 14 bones /
+- **MPFB prototype count (2026-11-05):** 19,747 tris / 16,851 glTF verts / 1.810 m / 14 bones /
   10 materials; `inspect` clean. Body-only head/neck surgery lives in
   `tmp/npc-research/build_mpfb_npc.py` (backups in `/tmp/build_mpfb_npc_94.py`).
 - **Engine baseline:** Godot 4.7.2 stable (official editor `~/.local/bin/godot`). The system's