Send accepted garage invitation alert to onboarding team

You lose onboarding context when early garage acceptances arrive untracked, causing delayed handoffs and missed tasks. It alerts onboarding coordinators for same-day triage.

Overview

Untracked early acceptances stall onboarding and leave program coordinators reacting. This flow formats key timestamps and pushes a clear alert to onboarding coordinators so they can triage new partners and update trackers within the same day, keeping launches on schedule.