Finds existing members who aren't on the TWU app yet, drafts a personal invite, and tracks every outcome to joined-or-not.
This flow works the gap between 'is a member' and 'is on the app.'
It's the 325-of-854 story from the app: a room that's filling up, tracked member by member - joined, opted out, or still to decide.
Confirms the contact is a real Zen Planner member and marks them as part of this program.
Invite drafted in Gmail and waiting on David to send - the hand-off point for this flow.
Set on the incoming tag webhook - outreach-sent confirms the send, app-not-joining is David's manual signal that a member has declined.