Feature request: validate vehicle_types_available.count

[futuretap]

If a station_status feed contains vehicle_types_available, the sum of all vehicle_types_available.count should be equal to num_bikes_available.

The Dott Paris feed currently violates this rule:

  {
    "is_installed": true,
    "is_renting": true,
    "is_returning": true,
    "last_reported": 1751313530,
    "num_bikes_available": 0,
    "station_id": "26bb0e22-1751-4ed5-a212-01ec281ccac4",
    "vehicle_types_available": [
      {
        "count": 3,
        "vehicle_type_id": "dott_bicycle"
      }
    ]
  },