data/fines.json

{
  "45bcfbaf": {
    "fine_id": "45bcfbaf",
    "issue_id": "974e6573",
    "student_id": "STU001",
    "amount": 50,
    "paid": false,
    "paid_date": null,
    "created_at": "2025-11-13T18:41:36.870469"
  }
}