Product update: curated briefings

Repeated items become one thread

When many subscribed items point at the same story, Bri groups the overlap and promotes the strongest thread instead of treating each item as a separate segment.

Small updates stay out of the way

The selection step can leave out lower-signal updates when they do not change the main story. That keeps the Podcast listenable and the quick read easier to scan.

Listening and reading match

The Podcast and quick read now follow the same curated structure, so listening first and opening the reading version later feels like continuing the same briefing.