## 1. Behavior
- [x] 1.1 Add meeting-session requirement for capped metadata attendee import.
- [x] 1.2 Add behavior test proving oversized metadata attendee lists are skipped.
- [x] 1.3 Add configurable default maximum attendee count.
- [x] 1.4 Preserve title, agenda, and scheduled end enrichment when attendees are skipped.

## 2. Verification
- [x] 2.1 Run focused recording coordinator tests.
- [x] 2.2 Run `openspec validate limit-outlook-metadata-attendees --strict`.