Class InteractableEventHandler<T>

Manages the event handling logic for Interactables:

• Tracking which interactors are hovering/triggering (via bitflags)
• Determining compound events (first hover vs additional hover)
• Connection ID filtering for multi-user scenarios
• Local vs sync event routing

The generic type T allows the full event args type to flow through to callbacks while the handler only accesses the fields it needs.