Dockerize

Closes #19

.dockerignore

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+target

Dockerfile

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+## Build stage
+FROM rust:1.79-alpine3.20 as builder
+
+RUN rustup target add x86_64-unknown-linux-musl
+
+RUN apk add musl-dev
+
+WORKDIR /jnv
+
+COPY . /jnv
+
+RUN cargo build --target=x86_64-unknown-linux-musl --release
+
+## Final image
+
+FROM builder
+
+COPY --from=builder /jnv/target/x86_64-unknown-linux-musl/release/jnv /bin/jnv
+
+ENTRYPOINT ["/bin/jnv"]