leyline hud optimizer

The optimization intercepts Leylines’ existing hasLeylineDischarge() check and caches its result for the current client game tick.

• Reuses the result across rendered frames.

• Rechecks when the next game tick arrives.

• Resets the cache when the player or world changes.

• Preserves Leylines’ original spell-detection logic.

• Doesn’t disable Leylines or change its intended gameplay mechanics.