FerrFlow · editorial features grid, install grid, dark CTA

The body of ferrflow.com now matches the new editorial design — six feature cards in a single bordered grid, four install methods side by side, dark contrast CTA block.

The ferrflow.com landing page is now fully on the editorial design system, end to end. The hero refresh shipped a few days ago; this one finishes the body:

Stats strip — hairline row listing the 13 file formats FerrFlow reads natively (Cargo.toml, package.json, pyproject.toml, pom.xml, *.csproj, build.gradle, Chart.yaml, pubspec.yaml, mix.exs, *.gemspec, Package.swift, go.mod, composer.json).
Features section — № 02 numbered, six feature cards in a single bordered container with hairline dividers. No more colored icon boxes.
Install section — № 03, four install methods side by side (Cargo / npm / Docker / GitHub Action), each with a mono $ prompt in accent orange.
CTA block — № 04, dark contrast block with an 8px orange border-left, big Fraunces title with italic accent, two pill CTAs.

Old terminal mock and 5-feature icon grid removed.