Implement Hunger & Saturation System

[Tides]

Implement basic Minecraft-like hunger, saturation, and exhaustion for players

• Track player stats (Possibly not needed):
  • hunger: int (0–20)
  • saturation: float
  • exhaustion: float
• Exhaustion sources (initial subset, configurable):
  • Sprinting, jumping, block breaking, attacking, taking damage
• Food consumption:
  • Apply hunger and saturation restoration via a simple food registry/map
• Events/API:
  • Fire change events/hooks for hunger, saturation, exhaustion, and food consume
• Persistence (Possibly not needed):
  • Save/restore hunger, saturation, exhaustion on login/logout and world save

For more information on how hunger/exhaution & saturation works you can view the wiki