curl -X DELETE "https://api.phanomcloud.online/bots/3fa85f64-5717-4562-b3fc-2c963f66afa6/backups/c1a2b3d4-0000-0000-0000-000000000001" \
  -H "Authorization: Bearer sess_..."

{
  "success": true,
  "message": "Backup deleted."
}

{
  "success": false,
  "error": "Cannot delete a backup created less than 1 hour ago."
}