Documentation Barlow assets

Docs use the same four pinned Barlow reading/UI fallback files as the landing site. Run node scripts/prepare-landing-fonts.mjs --target=docs from the repository root. Aptos is local-only; IBM Plex Mono has its own asset and licence directory.

The Fontsource 5.3.0 URLs and exact Git blob hashes are maintained in the preparation script, from fontsource/font-files commit 83e03cf917507fcc90b29be549828ec4ff39a8ef. Shared stacks and face declarations live in shared/styles/typography.css. Barlow Semi Condensed is no longer prepared or declared. Inventory checks reject its stale ignored files and other unlisted assets; use a clean checkout, since the preparer never deletes files.

Generated WOFF2 files remain ignored by Git and are served from this target's own origin. The original OFL LICENSE remains unchanged. Source and production verification check the licence and every prepared font hash.