Gum Gum Fruit

Implement only these approved requirements: - Register a custom food item named Gum Gum Fruit. - Apply supported default food properties because no gameplay values were specified: maximum stack size 64, nutrition 4, saturation modifier 0.3, consumption time 1.6 seconds, not edible while full, Food and Drinks creative tab, and no status effects. - Use a stylized spiral-patterned fantasy fruit appearance inspired by the Gum-Gum Fruit from One Piece. - Create the gum_gum_fruit texture: Pixel-art Minecraft inventory item icon of a round purple fantasy fruit with curled spiral patterns, a small green curled stem, soft highlights, and a whimsical magical appearance; original stylized design inspired by an anime-like rubber fruit, no logos or text.