JesseEmmanuel/aec-frontend ? reverse-engineered prompt

Build me a modern Next.js frontend for an AEC app that feels polished and easy to use.

I want a clean landing page, a simple authenticated experience, and a few reusable UI components so the app can grow over time. It should support multiple languages, handle basic routing and protected pages, and keep the user session working smoothly. Please make the app responsive, use a nice consistent design, and set it up so forms, validation, and shared state are easy to maintain.

If there are any details you need from the latest docs, look them up online and wire things up the right way. I’d also like the codebase organized in a way that makes sense for components, hooks, services, models, and schema based validation, with good TypeScript types throughout.