add server dockerfile

[johnnv1]

This PR adds a Dockerfile to the bubbaloop project, allowing users to build and run the bubbaloop server without needing to set up Rust or any other dependencies locally. The Dockerfile is designed to create a multi-stage build, ensuring that the final image is as small and efficient as possible.

Key Features:

1. Multi-stage Build: The Dockerfile uses a multi-stage build to separate the build environment from the production environment. This ensures that the final image only contains the necessary runtime dependencies.
2. Dependency Caching: Dependencies are cached during the build process to speed up subsequent builds.
3. Minimal Production Image: The production image is based on rust:1.83.0-slim-bookworm, which is a minimal image that only includes the necessary runtime dependencies.
4. Environment Variables and Port Mapping: The Dockerfile includes instructions for setting environment variables and port mappings when running the container.

How to Build and Run the Image:

1. Build the Image:

   docker build -t bubbaloop:local .

2. Run the Image:

   docker run -it \
       --name bubbaloop-server \
       -p 3000:3000 \
       -e RUST_LOG=debug \
       bubbaloop:local

[edgarriba]

Have you checked this ? https://github.com/kornia/bubbaloop/blob/main/scripts/cross_deploy.sh