Gravestone x Curios API Compat

Fixes crash due to obfuscation issues, i'm sorry to all people who were affected

Major rewrite of Gravestone Curios Compatibility:

• Per-item slot tracking: curios now restore to their exact original slot
• Cosmetic slot support: cosmetic curios are properly preserved and restored
• Slot-adding item priority: items that add curio slots are restored first
• Delayed restoration: prevents conflicts with slot initialization
• Curse of Binding support: configurable handling of cursed items
• Forced slot rebuild on restoration for accurate slot counts
• Respects Curios keepCurios config setting (fixes item deletion when keepCurios = ON)
• Player logout cleanup to prevent item loss
• Item blacklist configuration