DL-154

Delivery layout: in-tree apps/ui/src/design/ (tokens.css/base.css/components/) + keyboard/ contracts; stylelint guard bans raw hex, --rigel-*, and literal durations outside tokens.css, with one narrow allowlist — the mark component’s CSS may name --rigel-purple directly (purple is never aliased into --cx-*); no token package, no W3C token source (D7)

Status: Active (Matt, 2026-08-05)