RPG Attribute System

Added

• Full respec system with /ras respec, config (ras/respec.json), permissions, cooldown, and cost types
• Attribute templates with /ras template apply and /ras template list
• Player statistics overview GUI (scrollable breakdown + configurable totals)
• ConfigValidator with [RPGAS] startup diagnostics
• Public API: tn.nightbeam.ras.api.RasApi
• Documentation in docs/ (respec, templates, custom attributes, health scaling, commands, permissions, multiplayer)

Improved

• Custom attribute reliability: extended sync payload (init value, tips), client uses AttributeManager cache
• Orphan attribute NBT keys preserved on login
• Health scaling documentation and validation warnings
• Multiplayer sync: single sync after point allocation (reduced packet spam)
• Config validation for attributes, templates, and settings

Fixed

• DisplayLogicLockAttributeGenericProcedure reading server config on client
• ReturnAttributeNameGenericProcedure / ReturnAttributeTipGenericProcedure using synced cache
• Documentation mismatch for [param(X)] and max_level semantics