model virtual station and dockless parking capacity per vehicle type in gbfs 3.0

Steps

1. Set is_virtual_station to true in station_information.json for geofenced or rack-based parking areas that lack smart-dock hardware, and define the area with station_area (GeoJSON MultiPolygon) and/or lat/lon.
2. Use vehicle_types_capacity[] (an array of {vehicle_type_ids[], count}) to express how many of each vehicle type the virtual station can hold; the counts should sum to the station's overall capacity field.
3. For physical docking stations, use the analogous vehicle_docks_capacity[] to express how many docks accept which vehicle_type_ids.
4. Keep capacity fields consistent with what you publish in real-time station_status.json, since capacity is static/slow-changing while status is near-real-time.
5. Note that station_area, when present, takes precedence over ride_start_allowed/ride_end_allowed rules from any overlapping geofencing_zones.json entry.