- WeaponData resource class with configurable weapon properties and
pre-configured constants for rifle, pistol, shotgun, and SMG
- WeaponDefinitions singleton/static registry with WEAPONS dictionary
- WeaponServer node for server-authoritative weapon logic including
fire rate cooldowns, ammo tracking, reload state machine, and
multi-pellet hit-scan raycasting
- Extended WeaponManager with weapon inventory array, weapon switching,
per-weapon state persistence, fire_animation_triggered signal
shawn