Copper Equipments

Included in this build:

🧪 Item Oxidation

All copper-based items now have a new oxidation system based on damage :

• 100-75% -> Regular copper
• 74-50% -> Exposed copper
• 49-25% -> Weathered copper
• 25-0% -> Oxidized copper

1 state ≠ 1 item : Textures change dynamically based on durability.

🐛 Bug Fixes

• Minor internal cleanup
• Copper Mining Efficiency & Level reajusted
• Creative menus now have copper tools in order