sharatkumar-dev/SkillNexis-MERN-Stack-Internship ? reverse-engineered prompt

Build me a full MERN internship project repository that looks polished and complete, with separate folders for weekly assignments and one capstone app. I want Week 1 to cover simple frontend work like a personal portfolio, React components, and a blog style UI. Week 2 should be backend APIs for a todo app, user login with JWT, and a notes API tied to each user. Week 3 should connect React and Express for a full stack todo app, an image upload app with previews, and a task manager with a board style layout and some basic stats. Week 4 should be a deployed ecommerce capstone called NexisStore with login, product browsing, cart, file uploads, and a clean modern UI.

Please make the code easy to run locally, include setup instructions in each folder, and add API test files where useful. Use React, Node, Express, and MongoDB, and keep the styling modern and responsive. If you need current package details or docs, look them up online.