The briefing screenshot spec now writes the intermediate HTML into a
test-local mkdtemp directory and cleans it up after capture, so the
pr-screenshots/pap-9963 folder ships only the PNG deliverables.
Co-Authored-By: Paperclip <noreply@paperclip.ing>
Adds a screenshot-capture spec gated behind BRIEFS_CAPTURE_SCREENSHOTS=1
that renders the Briefing page fixture set and writes desktop, mobile,
and empty-state PNGs into docs/pr-screenshots/pap-9963/ for UX handoff.
Co-Authored-By: Paperclip <noreply@paperclip.ing>