Record the NPC vertex-cap constraint

TODO.md

@@ -82,6 +82,11 @@ and equipment fit.
 
 ### Body proportions and silhouette
 
+- [ ] Evaluate raising the per-character glTF vertex cap from 5,000 (and revisit the 6,000-triangle
+      cap) because `npc_firefighter` is at 4,948 verts after the hand pass. If accepted, update
+      `CHAR_MAX_VERTS`/`CHAR_MAX_TRIS`, the contract tests, `blender_assets.py audit`,
+      `docs/npc-visual-review.md`, and re-run the 24-NPC and Web/Compatibility budgets.
+
 - [x] Audit all variants against a shared human proportion guide (head height, shoulder width,
       torso length, hip width, limb length, foot length) and correct the worst outliers.
       (`tools/npc_proportions.py` + `docs/npc-proportion-audit.md`: all eight pass; no skeleton or