Release QA before anything goes live

Release readiness checklist

• Homepage loads and article cards render from the hardcoded article set.
• Category filters work on desktop and mobile.
• All trust pages open and carry correct branding, titles, and descriptions.
• Verification page works with available key and signature files.
• Processing-file links route readers to `verify.html` cleanly.
• All article imagery loads and falls back cleanly if a CDN asset fails.
• Keyboard navigation works: skip link, nav, category filters, modal controls.
• Theme toggle works and persists the reader’s preferred theme.
• No console errors on homepage, verification page, or policy pages.
• Corrections log reflects material front-end or editorial behavior changes.