Marketing ops: Add challenge registrants to all session invites

Marketing coordinators miss registrants when session invites aren't sent, causing lower live attendance and weaker campaign engagement. It ensures registrants get invites so they reliably join each live session.

Overview

Missed session invites hurt live attendance and weaken campaign outcomes while marketing ops scramble to fix schedules. This flow automatically adds newly tagged challenge participants to every session and notifies ops, eliminating manual invite work so registrants reliably receive calendar invites and join live sessions.

Notable Features

Add tagged participants to events
Create calendar attendees from signups
Notify marketing ops of new registrants