Split from #2677 (part 6). Waits for the teams issue and for #2678 (one design system). Done: a pull that touches src/web/ (a page, the ui vocabulary or the style) gets a review from a design-team member whose brief holds it to docs/DESIGN.md. Test: a pull changing src/web/pages/x.ts queues a design review; one changing only src/core/ does not.
Split from #2677 (part 6). Waits for the teams issue and for #2678 (one design system). Done: a pull that touches src/web/ (a page, the ui vocabulary or the style) gets a review from a design-team member whose brief holds it to docs/DESIGN.md. Test: a pull changing src/web/pages/x.ts queues a design review; one changing only src/core/ does not.