Phase 8.3: UX Polish + Email

[kpeatt]

Phase 40 (v1.7 View Royal Intelligence)

Goal: Financial data visible, attendance info for upcoming meetings, better email digests.

Requirements: MTGX-03, MTGX-04, MAIL-01, MAIL-02
Depends on: Phase 37

Success Criteria:

1. Agenda items with financial data display it visually
2. Upcoming meetings show attendance info (location, how to attend, public input)
3. Email digest has mobile-friendly design with meeting summary at top
4. Email includes upcoming meeting dates with attendance info

Plans: 40-01 (Financial + attendance), 40-02 (Email redesign)