feature: interactive learning path for the website

Hi there @rohitg00 👋 I’ve been following the "AI Engineering from Scratch" and I liked the whole "build it from first principles" approach you've taken. I was going through the content and realized that with 260+ lessons across 20 phases, it can be a bit tricky to visualize the dependencies (i.e. which phases need to be completed before tackling a specific topic). I had an idea for adding an interactive "Path" section to the website. It would essentially be a visual prerequisite graph where learners can: - See the entire dependency chain map out. - Click on any phase to highlight its prerequisite path (what to learn first) and what it unlocks next. I tried building a prototype of this If you think this would be a valuable addition to the site, I would be super happy to raise a PR for it. I'd love to contribute something useful to the community and this awesome project! Please let me know what you think! https://github.com/user-attachments/assets/16d38816-ed83-45b0-9895-e101b0547839