Obter um endpoint de webhook por ID

curl --request GET \
  --url https://api.wappfy.io/api/webhooks/{id} \
  --header 'Authorization: Bearer <token>'

{
  "id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "user_id": "<string>",
  "url": "https://example.com/webhook",
  "events": [
    "message.received",
    "message.sent"
  ],
  "retry_count": 3,
  "timeout_ms": 5000,
  "is_active": true,
  "created_at": "<string>",
  "updated_at": "<string>",
  "secret": "<string>",
  "description": "Production webhook",
  "instance_id": "<string>",
  "headers": {}
}