feat: add core entities

wanshenmean

2026-03-13 ca2e8a7c3c9ead9a646646a1175f812ed55d14d2

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{
  "RoadwayCommandMapping": {
    "HC": "Formation",
    "GW": "Standard",
    "CW": "Standard"
  },
  "DefaultCommandType": "Standard"
}