schema.CityAirportResponse

{
    "city": "上海",
    "has_city_airport": true,
    "list": [
        {
            "airport_code": "SZX",
            "airport_name": "深圳宝安国际机场",
            "city_code": "SZX",
            "city_name": "深圳",
            "distance_km": 12.34,
            "is_nearest": false
        }
    ],
    "matched_city_code": "SHA"
}