Checkitem node

The Checkitem node represents a specific mandatory step within the Room Master's game startup checklist. It acts as a logical gate that ensures all physical and technical requirements are confirmed before the game session is allowed to start.
When to use this node:
* Safety Verification: Forcing the operator to manually confirm that emergency exits are clear or that safety equipment is in place.
* Prop Reset Confirmation: Ensuring that specific physical puzzles, such as hidden drawers or magnetic locks, have been physically reset and closed by the staff.
* Session Interlocks: Combining multiple check-item nodes to prevent the BeginPlay node from firing until every critical component of the room is marked as "Ready".