imageInput aceita 3 formatos:https://cdn.example.com/banner.pngdata:image/png;base64,iVBORw0KGgo...iVBORw0KGgo...delaySeconds é opcional e segue a mesma regra de fila da rota de textocurl --location --request POST 'http://localhost:3000/instances//messages/image' \
--header 'x-api-key: <api-key>' \
--header 'Content-Type: application/json' \
--data-raw '{
"targetId": "120363123456789@g.us",
"imageInput": "https://cdn.example.com/banner.png",
"caption": "Banner da campanha",
"delaySeconds": 15
}'{
"messageId": "018f47ac-7a5b-7cc2-9f9a-9b8d7f6e5d4c",
"type": "image",
"status": "queued"
}