fix:(lib) - support colon syntax in __index method caching

[Krenuds]

Summary

The __index metamethod in OxVehicle and OxPlayer (server + client) caches closures that capture self from the enclosing scope. When methods are called with : syntax (standard Lua OOP), Lua also passes self as the first implicit argument — causing all real arguments to shift by one position.

This silently corrupts any proxied method call that takes parameters: setStored, setProperties, setOwner, setGroup, setPlate, set, etc.

Example: vehicle:setStored("garage_name", true) arrives on the JS side as setStored(vehicleTable, "garage_name") — an object as the stored value, and the garage name string as the despawn boolean.

Fix

Detect whether : or . syntax was used by checking if the first argument is self, then handle both conventions correctly. Backward-compatible — existing . syntax callers are unaffected.

Files changed

• lib/server/vehicle.lua
• lib/server/player.lua
• lib/client/player.lua