Logistics System for Optimized Double-Column Conveyor Cargo Management

meta Design a modern logistics system to manage cargo transportation on double-column conveyor belts. Requirements include handling different sized cargos, optimizing transportation routes, managing cargo priorities, and transportation time. Please provide design diagrams and implementation process. Example Input {"cargos": [{"id": 8, "size": 2, "priority": 3}, {"id": 9, "size": 4, "priority": 5}], "routes": [{"from": "A", "to": "D", "distance": 10}, {"from": "D", "to": "E", "distance": 2}]}