Create a new api endpoint for data updates

It is necessary to create a new endpoint for metadata update so that the AI of a stage can read that is not

https://docs.vambe.me/reference/contact/update-contact-metadata

Because the aiContactId is required , but for new contacts there is no such id, but to update the metadata that can be read by the AI of the stage that id is required. But you can not update the metadata to generate that id, because you do not have the aiContactId.