Invite Links & RSVP Invite links & RSVP extension for Caffeine AI. Overview This skill adds invite-link generation and RSVP collection. Admins generate unique invite codes; guests use them to submit responses without authentication. This is for events, not app access: an RSVP code grants nothing else in the app. To let people join a private app through a link, use extension-user-approval. Prerequisite: You must follow extension-authorization first, as this integration depends on it. Backend Module API The prefabricated module provides low-level invite-link and RSVP state management. Do not mo…