Add course completer to appropriate follow-up email group

Course completions missing mailing list routing leave your program coordinators blind to follow-up context. Adds learners to the right group and notifies ops so outreach can happen the same day.

Overview

If course completions don't route, coordinators chase context and outreach windows slip. This flow keeps mailing lists accurate and posts a contextual ops message so program coordinators can send surveys and request reviews within minutes or the same day.