Move the backend into docker-compose and switch the frontend to a multi-stage Docker build. Key changes:
- Added backend/.dockerignore to ignore virtualenv, pycache, env files, instance, etc.
- Updated backend Flask app to safely serve index.html only if it exists and return JSON status/errors when frontend assets are absent.
- Removed docker-compose.dev.yml and expanded docker-compose.yml to run both backend and frontend in Docker (backend service, healthcheck, restart/logging, new ports 5849:5000 & 3847:80, and named volumes).
- Frontend changes: remove file ignores that prevented in-container builds, replace nginx-only image with a Node builder stage + nginx runtime (builds assets in Docker), and update nginx proxy to target the backend service (proxy_pass http://backend:5000).
- Updated dev script (scripts/dev/dev.bat) to use plain `docker compose` commands and the new service/container names and ports.
These changes enable fully containerized local/dev runs where the frontend is built inside Docker and the backend runs as a service in the compose network.
Moved and improved development helper scripts for better cross-platform support, including WSL and Docker. Updated backend login to accept username or email, and updated frontend login form accordingly. Enhanced backend and frontend dev server compatibility for WSL. Updated documentation for streamlined setup and usage.
Juan Denis