Mythic Masters: beaks, hands and a rounder Mokele-mbembe head on the last 16 beasts with no builder parts #3500

Left from #3093. After it, 16 beasts still have no builder part (skull, limb, foot, wing). The skull recipe from #3131 doesn't fit them, so each needs its own shape:

• Beaks: Roc, Tengu. They need a beak part or a skull with snout near 0 and a long len.
• Hands with no fingers: Dokkaebi (no hand node), Curupira, Mothman. Oni, Kappa and Tengu already have finger nodes, so their hands only want a look.
• Mokele-mbembe: a skull made its round head into a small block and the judge scored it 18 to 16 (Mythic Masters: beast round 3 on the 40 untouched beasts, and fix slab-like limb thighs #3093's PR), so it was dropped. Try a longer, rounder skull (flat 0, snout 0.7) or a bigger head node.
• Leave as they are unless a judge says otherwise: the serpents (Boitata, Hoop Snake, Lambton Worm, Imugi at its 3200 budget) and the beasts that are mostly head or have none (Dover Demon, Flatwoods Monster, Fresno Nightcrawler, Afanc).

How: take BEFORE with bun scripts/beasts.ts --shots --as before, edit the sheets, run bun run beasts <ids> imugi, then bun scripts/beasts.ts --judge. Feet and wing counts and the Imugi 3200 budget must not move. Drop any beast the paired judge scores lower.