get-email-summary

Fetches and categorizes emails from all accounts (M365 Prisma/DataBusiness/Personal + Gmail), identifying action items, system alerts, and financial notices. Triggers on "Get my email summary for today", "Populate the email sections", "Update emails in briefing entry [id]". Called by briefing-generator after get-calendar-events. Transitions Phase from 2-Calendar to 3-Teams.