Devendradhote001/cohort3-react ? reverse-engineered prompt

Build me a React learning project that feels like a little course playground, with separate sections for the main concepts a beginner would practice, like JSX, props and state, forms, routing, auth, context, effects, refs, local storage, Redux, data fetching, memoization, debouncing, pagination, infinite scroll, and a small TypeScript area too.

I want it to be easy to open each lesson and see a simple working example, not just static text. Make the app clean and beginner friendly, with a home screen that links to each topic and a consistent layout across the demos. Add a few practical examples like a product list, form validation, login flow, and an API driven page so it feels useful, not just theoretical.

If you need to, look up current docs online for anything that has changed. Please set it up so it runs smoothly and the code is organized well enough that I can keep adding more lessons later.