chore: grounwork for SEO features

docs/design/README.md

@@ -9,7 +9,7 @@ Nuxt UI v4 back-office. Tokens only, no raw hex (brand mark excepted). Light and
 - Unchanged: Foundations, Components, Handoff, Directions and Emails boards.
 
 ## Pass 3: sites and authors (revised)
-Roles, decisions and the slice order are in `sites-authors-slices.md`.
+Roles, decisions and the slice order are in `sites-authors-slices.md` (Sites and Authors) and `seo-slices.md` (SEO).
 
 Back-office board groups: Sites, Sites: form, Sites: delete, Authors, Authors: form, Authors: delete, Editor: site and authors, Profile: author profile, Articles: sites and authors. Plus tables: decisions to confirm (13 rows, 5 marked Decided), deviations, API and errors (with the 403 rows), components, accessibility, copy per state.
 - Roles: only creating, editing, deleting and setting the default site are owner only (no sidebar entry or Publishing card for others, 403 page on a direct link). Anyone who can edit an article can set its site and read the site list. Authors: owner and admin manage; other roles read-only, and any role can create and edit their own author (user link locked, no delete).
@@ -130,4 +130,5 @@ Back-office total 341 (pass 2 groups, table above) + 68 (sites and authors) = 40
 - Contrast was not computed for every hover and active background, only the pairs listed in foundations.md.
 - The glossary pass was a search for known patterns, not a line-by-line read of every string. Titles in Title Case were not searched.
 - The Components, Handoff and Foundations boards were not updated to mention the new tokens, CodeSnippet or the matrix.
+- Integration still lists "max 10000" for article bodies, as the backend does today (change-list item 11).
 - The sandbox cannot export; no files were bundled.