Add Docker support for local development

[udaycodespace]

Description

LearnHub currently has no Docker setup — the backend, frontend, and MongoDB all need to be installed and run manually. Adding containerization would make onboarding faster and keep environments consistent across contributors.

What's needed

• Dockerfile for the backend (Express/Node)
• Dockerfile for the frontend (React/Vite)
• docker-compose.yml wiring up backend, frontend, and MongoDB together
• Environment variables handled via .env files (don't hardcode secrets in the compose file)
• Update README with Docker-based setup instructions (as an alternative to the manual steps, not a replacement)
• Confirm the seed script (seed.js) still works inside the containerized setup

Notes for contributors

This is open for anyone with Docker/DevOps experience to pick up. /assign yourself if you're taking it on. Happy to answer questions about the current backend/frontend structure if needed.

[prasiddhi-105]

/assign

[github-actions]

🎉 @prasiddhi-105 has been successfully assigned to this issue. Please submit a PR within 7 days. Happy coding!

[udaycodespace]

Welcome aboard, @prasiddhi-105 🚀

This one's a great pick if you've got Docker/DevOps chops. Feel free to structure the compose setup however makes sense for the project.

Tip

• Fork and star the repo if you're up for it, it helps with LearnHub's visibility.
• When you submit the PR, include the exact commands to spin everything up (docker-compose up, etc.) in the description so review is quick.

Note

This issue is tagged for scoring, so a clear PR description (setup steps, what was tested, any gotchas) helps on the tier side too.

Ping me if you get stuck, but I'd say dig into the codebase yourself first, it'll help you understand the structure better. All the best, looking forward to seeing it running 🔥