Development - EnderElevator

ECS architecture

Class	Role	Responsibility
`ElevatorSystem`	Orchestrator	Detects input, validates the current elevator block, searches vertically, checks destination safety, and queues travel/effects.
`ElevatorComponent`	Per-player state	Stores last successful use plus short failed-search timestamps per direction.
`SmoothingComponent`	Travel state	Stores start/end positions, elapsed time, duration, and captured rotation.
`SmoothingSystem`	Travel runner	Moves players with TransformComponent#setPosition() and applies one final Teleport correction.
`ElevatorConfig`	Configuration	Defines BuilderCodec-backed search distance, cooldown, sound, smooth movement, and duration keys.

Use CommandBuffer for ECS mutations during ticks.
Check world.getChunkIfLoaded() before world.getBlockType().
Resolve the teleport sound lazily only when sound is enabled and travel succeeds.
Do not smooth by adding Teleport every tick.