The style guide asks for doc comments on a library's public API. Every
type, function, constant and static the two libraries export now has
one, saying what it is for or what it does that its name does not:
fetch follows redirects itself so credentials stay on the feed's host,
Config::parse refuses repeated token names, Store::due_one is the
admin's Refresh. Fields and variants whose names say it all have none,
as the guide allows.
category_path's comment had slid above categories(), which then had
two; each has its own again.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>