Add Alpacas as a New Peaceful Mountain Mob

Description:
Please add alpacas as a new mob for mountain and meadow biomes. They would be smaller and fluffier than llamas, with two variants:

• Huacaya – round body, dense springy wool
• Suri – slimmer body, long silky hanging wool

Shearing them gives two materials:
Huacaya Wool and Suri Wool.

Protection differences:

• Huacaya clothing provides better resistance to potion effects and weakens offensive enchantments (reduced poison, slowness, etc.).
• Suri clothing provides better resistance to magical and sonic damage (e.g., Warden-type attacks).

The protection scales with player health — more hearts = stronger effect.

 Alpaca Therapy:
Being near an alpaca grants a short “Calm” effect:
• hostile mobs temporarily stop attacking
• faster regeneration
• soft peaceful background music

Alpacas would symbolize harmony and peace in Minecraft.