Give every Quaternius head a visible mouth and queue the prop and gear fit pass

docs/npc-visual-review.md

@@ -22,6 +22,7 @@ all build defects, not art. This revision covers what was fixed and what is stil
 | arms intersecting the body on `npc_dress`, `npc_jacket`, `npc_crowd_a`, `npc_crowd_d` | the baked rest aimed the upper arm straight down, which fails on the narrow bases | reduced — the arm rests 7° out from vertical (mesh width 0.180 → 0.220 on `casual`, 0.228 → 0.262 on `hoodie`) |
 | head gear did not sit on the skull | gear is authored around the procedural head centre (1.62); the Quaternius head centre is 1.69 | **resolved by removal** — see below |
 | performer cone swallowed the head | a 0.44 m cone authored for the old body | removed — the performer carries a baton and board in the hands |
+| faces had **no mouth at all** | none of the three upstream heads carries a mouth material | fixed — a small lip block is placed on the measured skin surface for every base (dark maroon, not tinted) |
 
 ## Hats and head items
 
@@ -91,6 +92,10 @@ Recorded as tasks in `TODO.md` under **Owner review findings**:
 
 1. **Eyes have no whites.** Every base uses single-colour quads, so eyes read as dark rectangles at
    portrait distance. A light sclera plus pupil on the `Eye` slot would finish the face.
+2. **Hands and hand-held gear are still authored for the old body.** The wrist moved from y 0.78 to
+   1.017 and the arm got shorter, so the clipboard and the umbrella are oversized. A dedicated
+   prop-and-gear fit pass is queued in [`../TODO.md`](../TODO.md) under **Prop and gear fit pass
+   (new NPC attach points)** — it starts by teaching `fit` to measure hand gear at all.
 2. **Arms still graze the torso on the `worker` base** — the 7° rest tilt cleared the `casual` base
    but not this one.
 3. **The `npc_vest` clipboard is oversized** on the shorter Quaternius arm.