Round the NPC shoes and responder boots

docs/development-status.md

@@ -45,6 +45,7 @@ Implemented so far:
 - NPC mesh budget (0.9.4 work): the eight library variants now have an 8,000-triangle / 8,000-glTF-vertex cap (up from 6,000/5,000); the `npc_base` fallback remains 6,000/4,000. Current characters measure 4,226–5,218 triangles and 4,119–5,240 vertices.
 - NPC face-detail pass (0.9.4 work): ala wings and a smaller nose bridge/tip, one rounded mouth slot, and a darker ear concha; all eight rebuilt. The comparison is `sheet_npc_baseline_compare-face-detail.jpg`.
 - NPC headgear clearance (0.9.4 work): the 96-frame final-context review after the face-detail pass confirms the cap, firefighter helmet, hood and sunglasses clear the refined brow and eyes; no gear rebuild was needed.
+- NPC footwear pass (0.9.4 work): casual shoes gained rounded toe and heel caps; responder/firefighter boots gained matching toe/heel volumes while retaining the black rubber boot language. All eight rebuilt; comparison `sheet_npc_baseline_compare-shoes.jpg`.
 - NPC hand-item grip (0.9.4 work): runtime `HAND_ITEM_FORWARD` moves every hand gear 4 cm forward from the wrist proxy, so phone, cup, clipboard, camera, flashlight, wand and radio sit in the open palm instead of partly inside it. Finger curl/thumb contact remains open; the comparison is `sheet_npc_hands_grip_compare.jpg`.
 - NPC hand pass (0.9.4 work): wider, shallower palms; four two-segment bent fingers with rounded tips and a separate bent thumb; optional `--view=hand` capture at 0.80 m. The hand comparison is `sheet_npc_hands_compare.jpg`; item grip offsets remain open.
 - NPC proportion audit (0.9.4 work): `tools/npc_proportions.py` measures all eight GLBs against a stylized height/head/shoulder/hip/torso/leg/arm/foot guide. All variants pass; the head and broad-build silhouettes are the nearest upper bounds. Results are in [`npc-proportion-audit.md`](npc-proportion-audit.md).