frontend-component-librarylisted

## Overview Create a small set of reusable, accessible UI primitives the rest of the site composes from. ## Steps 1. Create `src/components/ui` with `Button`, `Input`, `Card` and `Container` primitives. 2. Give every primitive a typed props interface and sensible default styling. 3. Export the primitives from a single barrel file for easy import. ## Verify Typecheck the project and render each primitive once on a scratch page to confirm props and styling resolve.