auth login treated a launcher's zero exit as proof a browser opened: on a
terminal that renders OSC 8 the authorization URL existed only as an escape
target behind a "click here instead" label — no selectable, copyable text.
When the launcher lies (exits 0, opens nothing), the only fallback offered
was a click down the same failed route. The prompt now prints the URL itself
beneath the site-name headline, linked to itself where the terminal renders
the escape — the shape every other URL atgc prints already has. A terminal
that cannot click gets the same sentences, and the two Opened arms merge.
The sign-in epic records the branch of three and the reasoning.