v1.0.0

Initial release.

Gives chunk mesh building its own dedicated, live-resizable thread pool instead of sharing
vanilla's background pool with worldgen and IO.

• /multicoremagic status|threads <n>|on|off
• Mod Menu + Cloth Config screen
• Default thread count matches vanilla's own formula (CPU cores - 1)

Requirements: Minecraft 26.2, Fabric Loader >= 0.18.4, Fabric API, Java 25.