Watch run

curl --request POST \
  --url https://api.case.dev/agent/v1/run/{id}/watch \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "callbackUrl": "<string>"
}
'

{
  "ok": true,
  "callbackUrl": "<string>"
}