shaikaneesa19/batch4-mern-fsd-training ? reverse-engineered prompt

Build me a simple MERN full stack training repo that’s organized into four modules, with each module containing clear examples and practice code for beginners.

I want it to feel like a course workspace I can open and follow along with, starting from basics and moving toward a small full stack app by the end. Please make the code easy to read, with short notes in the files where it helps, and keep each module focused on one step of the learning path.

If anything is unclear from the existing project files, look up current docs online if you need to. I mostly want something practical that a student can use to learn by running and editing the examples themselves, not a polished production app.