Feat: docker image

Dockerfile

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+FROM rust:1.68-bookworm as build
+WORKDIR /build
+COPY . .
+ENV CARGO_REGISTRIES_CRATES_IO_PROTOCOL=sparse
+RUN echo $(rustup show | head -n 1 | awk '{print $NF}') > /platform
+RUN cargo build --release --target $(cat /platform) --bin logo-generator
+RUN mv target/$(cat /platform)/release/logo-generator logo-generator
+
+FROM debian:bookworm-slim
+RUN apt-get update && apt-get install -y libcairo2-dev && rm -rf /var/lib/apt/lists/*
+COPY --from=build /build/logo-generator /logo-generator
+EXPOSE 3000
+CMD ["/logo-generator"]