curl -X GET \
  'https://platform.returnqueen.dev/api/availability?zip_code=11201' \
  -H 'X-API-KEY: your-api-key'

{
  "time_slots": [
    {
      "date": "2024-01-15",
      "slots": [
        {
          "start_time": "2024-01-15T14:00:00Z",
          "end_time": "2024-01-15T18:00:00Z"
        },
        {
          "start_time": "2024-01-15T18:00:00Z",
          "end_time": "2024-01-15T22:00:00Z"
        }
      ]
    },
    {
      "date": "2024-01-16",
      "slots": [
        {
          "start_time": "2024-01-16T14:00:00Z",
          "end_time": "2024-01-16T18:00:00Z"
        }
      ]
    }
  ]
}