mui/material-ui ? reverse-engineered prompt

Build me a polished React component library based on Google Material Design, like a ready to use design system that developers can install and use to make clean web apps fast.

I want it to include common reusable UI pieces such as buttons, forms, dialogs, menus, cards, navigation, layout helpers, and feedback components. It should feel consistent, accessible, responsive, and easy to customize with themes, colors, spacing, and typography. Please include a simple documentation site with examples so someone can browse the components, copy usage snippets, and understand how to get started quickly.

Set it up as an open source style project with examples, tests, formatting, contribution notes, a changelog, and a clear package structure so it can grow over time. Keep the first version practical and stable rather than trying to do every advanced component at once.

Look up the current Material Design and React docs online if you need to.