curl --request GET \
  --url https://api.setteo.io/v1/leads/{lead} \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "id": 123,
    "ext_id": "crm_123",
    "first_name": "Jean",
    "last_name": "Dupont",
    "username": "jdupont",
    "image": "https://example.com/avatar.jpg",
    "email": "jean.dupont@example.com",
    "phone": "+33612345678",
    "source": "api",
    "warmth": "warm",
    "pipeline_stage": "qualified",
    "variables": {
      "plan": "pro"
    },
    "whatsapp_phone_number_id": 12,
    "created_at": "2026-07-08T12:00:00Z",
    "updated_at": "2026-07-08T12:00:00Z",
    "tags": [
      {
        "id": 1,
        "label": "Prospect chaud",
        "description": "Prospect prêt à réserver un appel.",
        "pipeline_stage": "qualified",
        "created_at": "2026-07-08T12:00:00Z",
        "updated_at": "2026-07-08T12:00:00Z"
      }
    ]
  }
}