Reading streaks

curl --request GET \
  --url https://api.rewind.rest/v1/reading/streaks \
  --header 'Authorization: Bearer <token>'

{
  "current": {
    "days": 5,
    "start_date": "2026-03-18",
    "total_finished": 8
  },
  "longest": {
    "days": 21,
    "start_date": "2025-12-01",
    "end_date": "2025-12-21",
    "total_finished": 34
  }
}