React/Vite scenario tour

The showcase proves graph identity and REST/GraphQL population, optimistic confirm and exact rollback, relationship invalidation, local/remote/hybrid views, realtime coalescing, offline persistence and convergence, Suspense/error containment, DevTools, keyboard behavior, and accessibility. Run the focused gate with pnpm run verify:vite-react19.

Screenshots and their immutable receipts are cataloged in Evidence; gallery assets are never treated as proof without the matching scenario and source SHA.