registerRedirectUri
fun registerRedirectUri(ticket: Ticket, handle: String, redirectUriValue: String): CompletableFuture<String>
Finalize a Response.RedirectHandle by registering redirectUriValue as the landing URI for handle.
Return
URL the user should be sent to. Open this in a browser, deep-link target, or WebView. After the user returns, continue the flow with the matching confirm* and the redirect handle's context.