S'abonner aux alertes de statut

{
  "email": "user@example.com",
  "service_slugs": [
    "api",
    "storage"
  ],
  "severity_filter": [
    "major",
    "critical"
  ]
}

{
  "id": "sub_12345",
  "note": "L'utilisateur doit cliquer confirm_url pour activer l'abonnement.",
  "email": "user@example.com",
  "confirm_url": "https://status.coffrify.com/confirm?token=..."
}