List all visionary slots

curl --request GET \
  --url https://api.fluxer.app/v1/admin/visionary-slots \
  --header 'Authorization: <api-key>'

{
  "slots": [
    {
      "slot_index": 1073741823,
      "user_id": "<string>"
    }
  ],
  "total_count": 1073741823,
  "reserved_count": 1073741823
}