Cowboy Hat Prototype - Minecraft Java 26.2

This ZIP is a minimal resource-pack prototype for testing the 26.2 item-model system.

Install:
1. Put CowboyHat_26.2.zip into .minecraft/resourcepacks/
2. Enable it in Minecraft 26.2.
3. Use the command below.

IMPORTANT:
This prototype tests the item model itself. The custom 3D model is not automatically
assigned to a leather helmet by this resource pack alone. The item must have the
minecraft:item_model component set to cowboy:cowboy_hat.

Test command:
  /give @s minecraft:leather_helmet[minecraft:item_model="cowboy:cowboy_hat"]

For the final server implementation, a datapack/command system can create the
variant while keeping the underlying item as leather_helmet.

The model is intentionally simple. Replace assets/cowboy/models/item/cowboy_hat.json
with a Blockbench-exported item model once the rendering test works.
