WCAG 2.2 AA quality gate for ultraweb builds — computes real contrast ratios in the browser (computed colors canvas-normalized to sRGB, so oklch tokens measure correctly), walks the full keyboard path via Playwright (tab order, focus-visible ring on every interactive element, Escape closes every overlay), audits landmarks, heading structure, and alt text, re-tests every page under emulated prefers-reduced-motion, injects the WCAG 1.4.12 text-spacing override to catch clipped or overlapping text, and for DACH-market builds scopes the BFSG/BaFG duty (jurisdiction, e-commerce service scope, microenterprise exemption) before verifying the required accessibility information.
