* test: align README presentation guards with the #4306 refresh
The 'Refresh README presentation' change (#4306) swapped the ASCII banner
for a centered wordmark image and moved the native quickstart into
docs/setup.md, which left four base tests failing on dev and froze the
merge gate:
- test_security_regressions::test_readme_native_quickstart_uses_loopback
now also accepts the loopback guidance from docs/setup.md, where the
quickstart moved (no behaviour change; the guidance is intact there).
- test_readme_ascii_fenced guards the new wordmark title instead of the
removed ASCII banner, and keeps a defensive check that any reintroduced
box-drawing banner stays inside a code fence (the original #1390 mode).
- The five unreferenced demo gifs under docs/ (chat, compare, document,
notes, research) are removed so test_docs_no_orphan_images passes; they
were de-referenced by the refresh. Recoverable from history if a docs
page wants to embed them again.
* chore: refresh PR checks
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Co-authored-by: Alexandre Teixeira <alexandremagteixeira@gmail.com>