aria-hidden="true" was sharing the "warning" bucket with real problems
(empty alt, ARIA-name-without-alt) even though it needs no action - the
element is already fully removed from the accessibility tree. It now
gets its own "info"/"Hinweis" kind with a dedicated badge, icon, and
summary count.
Exclusion only makes sense for things you'd want to mark as "reviewed,
intentionally left as-is": errors and real warnings. "success" and the
new "info" kind no longer get a click handler at all, since there is
nothing to exclude - clicking them is now a no-op.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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