Deliver pre-meeting briefs

[ComputelessComputer]

Summary

• use the existing five-minute meeting reminder as the delivery point for an in-app pre-meeting brief while preserving native countdown and recording behavior
• show a concise prep card in upcoming meeting notes with localized timing, location, attendees, description, and prior recurring-meeting context
• only surface prior summaries when the calendar provides an exact recurrence-series match; fall back cleanly to calendar details otherwise
• read canonical live calendar rows so canceled events disappear, validate malformed participant data, and exclude all-day events
• keep private meeting context inside the unlocked app rather than exposing it in notifications

Validation

• pnpm -F desktop typecheck
• pnpm -F desktop test (382 files, 3308 tests)
• focused pre-meeting regression tests (19 tests)
• pnpm exec oxlint --quiet --format=github apps/desktop/src/ (0 errors)
• desktop catalog extract/compile stability check
• changed-file dprint check

Linear: ANLG-48

Linear Issue: ANLG-48

  

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