Rename list_passes_null_status_through_for_BLOG_WRITER_so_drafts_are_visible
to list_with_null_status_and_BLOG_WRITE_returns_PUBLISHED_not_all_stories and
rewrite to verify eq(PUBLISHED) is passed — this test is now RED against the
vulnerable list() implementation.
Strengthen list_forces_PUBLISHED_status_for_reader_without_BLOG_WRITE with
eq(PUBLISHED) and isNull() matchers — both tests are now real regression fixtures.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>