create_rsvp_preview
ChatGPTCreates a hosted Greetings Island RSVP page from an invitation image the host uploaded or generated in this chat, and returns a preview link. The page collects and tracks guest responses. Every parameter except the invitation is optional, and any that is omitted gets a default: no title, no location, no reply deadline, no guest limit, up to 9 plus-ones per guest, "maybe" allowed, comment wall on, and the standard guest question. The invitation image becomes the page's artwork unchanged. The result is a form showing the page's details, with a "Customize RSVP" button to change any detail or setting and a "Preview RSVP" button to open the page. The page is not public until the host opens the private preview link and publishes it there, signing in at that point. Until then, details can also be changed with update_rsvp_preview; once the page is published they are changed on the website's management page instead (get_rsvp_status gives its link).
