- Declare `__all__` in every package `__init__.py` whose `PROJECT_ROOT`
is imported by its modules (163 packages), so the constant counts as
exported; list every public name where the package defines more.
- Empty the 15 package `__init__.py` files whose `PROJECT_ROOT` no module
imports.
- Declare the public API of `utils.github.variant.axes` in `__all__`,
re-exports included, instead of silencing them with `noqa: F401`; the
list matches the one `feature/store-i18n` already carries.
- Use `import unittest.mock as mock` in `test_applications.py`, as the
rest of the suite does.
- Spell `_NON_PRINTABLE` in `utils/yaml_bootstrap.py` as the equivalent
BMP-only positive class; it matches exactly the same 2111 code points
as the old negated class across U+0000..U+10FFFF.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
The root-README overview renders a Video link per role and a reader following it expects a demo, but 26 of the 62 entries addressed a channel, a playlist or a product page: youtube.com/@zammadhq, /channel/UC..., framatube.org/c/mobilizon/videos, pgadmin.org/videos. None of those can be embedded and none shows the product without a second click.
Each replacement was resolved through YouTube's oEmbed endpoint, which returns the real title and channel, so a candidate could be checked rather than assumed. That caught a supposed LibreOffice intro published by an unrelated channel, a Discourse overview belonging to a hosting vendor, and a Zoom video answering 403 with embedding disabled. Fourteen of the new entries come from the vendor itself and two are PeerTube.
The reachability half needed the same endpoint for a different reason: YouTube answers a removed video with HTTP 200 and a Video-unavailable page, so a plain fetch proves only that YouTube is up, while oEmbed answers 400. Measured both ways before relying on it.
The check is external because reachability needs live HTTP, and like its siblings it reports an unanswered probe as unverified rather than failing, so a firewalled runner cannot redden a good URL. Only the shape is asserted, because that is a repository fact.
README.md follows rather than leads: overview.py renders the Video column from this field.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>