Create BudBud (芽芽), the next companion after FireCat: a friendly small grass-element support creature for a polished stylized 3D mobile game. Use a rounded mint-green leaf-bud body, cream muzzle and belly, cream feet, a tiny pink nose, dark glossy eyes, three broad leaf sprouts on the crown and a small yellow flower center. Upright biped, short separate legs and arms, one full body, no props, no text, no scenery, clean studio white background, gentle welcoming expression, front and slight three-quarter views suitable for a 1500-2000 triangle low-poly model. Preserve Y-up game coordinates, grounded bottom-center origin and local -Z front. Avoid armor, weapons, floating particles, stone, fire, blue crystals, fur strands and humanoid anatomy.