Feature/dockerize testing2

[Shubham15986]

Description

This PR introduces a centralized Docker setup that acts as the core orchestrator for local development, spinning up both the backend and frontend simultaneously via docker-compose.yml.

It aims to solve local environment friction (specifically macOS mysqlclient C-library installation issues) and dramatically simplifies the onboarding setup process for new club contributors.

Note: No frontend PR is required! The Compose file in this PR dynamically manages the frontend by mounting the adjacent frontend directory into a generic Node container.

Changes Made

• docker-compose.yml: Added a central orchestration file that builds the backend container and dynamically mounts the adjacent RECursionNITD-Frontend repository into a resilient Node container.
• Backend Dockerfile: Added a Python 3.11-slim container that natively installs the required system dependencies (libmysqlclient-dev, libjpeg-dev) to successfully compile mysqlclient and Pillow.
• Volume Mounts: Configured volume mounts for both website/ and ../RECursionNITD-Frontend/ directories to ensure zero-friction hot-reloading for both backend and frontend developers.
• Resilient NPM Configuration: Injected network timeouts (fetch-retry-maxtimeout 600000, fetch-retries 5) into the frontend startup command to bypass ECONNRESET drops during massive registry pulls.

How to Test

1. Ensure both the backend and frontend repositories are cloned into the same parent folder.
2. Run docker compose up -d --build inside this repository.
3. Visit http://localhost:3000 to interact with the full containerised stack.