What Airport Operational Databases (AODB), collaborative decision-making (A-CDM) frameworks, and resource management systems (RMS) define foremost airport operations platforms like SITA AirportManagement, Amadeus Airport IT, and Collins Aerospace ARINC, and how do their core workflows orchestrate gate assignments, baggage conveyor allocation, and turn-around tracking to ensure on-time flight operations across high-density terminal hubs?