curl --request GET \
  --url https://api.wachap.com/v1/whatsapp/accounts \
  --header 'Authorization: Bearer <token>'

{
  "success": true,
  "accounts": [
    {
      "id": "account_abc123",
      "phoneNumber": "+33612345678",
      "name": "Mon compte principal",
      "status": "connected",
      "connectedAt": "2025-01-15T10:30:00Z"
    },
    {
      "id": "account_def456",
      "phoneNumber": "+33687654321",
      "name": "Compte secondaire",
      "status": "disconnected",
      "connectedAt": null
    }
  ]
}