[solo applicant] see the header overflow indicator flip when items push past one line

Proof set for Render PDF (long header overflows — overflow indicator surfaces)

Cover the G7 render edge cases the main solo-render gate omits: the InfoEditor header chip surfaces an overflow indicator (red !) when the resolved contact line exceeds page width; if the Typst WASM bundle fails to load the UI surfaces an honest error instead of silently displaying a blank preview; missing fonts fall back to a known available family without producing a corrupt PDF; and Swiss-German orthography enforcement turns ß into ss in the final Typst output when format.ortho is on.

Story-focused browser specs tied to the behaviour catalog. This gate keeps the story-to-test translation honest while staying runner-only.