First-run setup marks a new reader up to date, since changes mean nothing
before you've used the app. An absent marker therefore means an install
from before the changelog, which is what lets the launch be announced to
existing readers once.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Forty-four reader-facing entries and ten release notes, backfilled from
the history and the specs, each naming the commit or range it describes.
Tests pin the shape; a script checks the refs exist, since CI's shallow
checkout can't.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
