- RecallShownPayload { noteId, ageDays: int>=0 } .strict()
- recall_opened/dismissed/snoozed → NoteIdPayload 재사용
- TelemetryEventSchema union 15 → 19
- 단위 +3 cases (recall_shown valid, extra field 거부, opened/dismissed/snoozed valid)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>