journal_highlights_for_task was a Phase-1 stub returning [], so evidence()
never surfaced the upstream Product Owner / Head of Marketing review. The
Main PM picked up a board-reviewed coordination task, saw no handoff, and
re-researched from scratch (duplicated work). Query the task's
decision/reflection/note entries across authors (slug + role), oldest
first, so the Main PM builds on the board's analysis instead of redoing it.