Add train capacities and delay status

[Mr-Technician]

The RailForLess API now supports train capacities and delay statuses, which should be added to the UI.

• originStatusInfo is a property of travelLegs
• destinationStatusInfo is a property of travelLegs
• seatCapacityInfo is a property of travelLegs

Example capacity JSON:

"seatCapacity": {
    "capacity": 263,
    "occupied": 100,
    "available": 163,
    "classes": [
        {
            "travelClass": "Coach",
            "capacity": 228,
            "occupied": 77,
            "available": 151
        },
        {
            "travelClass": "Sleeper",
            "capacity": 35,
            "occupied": 23,
            "available": 12
        }
    ]
}

Example status JSON:

"originStatusInfo": {
    "status": "DELAYED",
    "displayMessage": "1 Hour, 16 Minutes Late",
    "statusType": "ESTIMATE",
    "dateTime": "2026-04-25T01:15:00",
    "asOf": "2026-04-24T23:28:00"
},
"destinationStatusInfo": {
    "status": "DELAYED",
    "displayMessage": "1 Hour, 12 Minutes Late",
    "statusType": "ESTIMATE",
    "dateTime": "2026-04-25T02:51:00",
    "asOf": "2026-04-24T23:28:00"
}