feat: docker hosting

Dockerfile

@@ -0,0 +1,14 @@
+FROM rust:1.91.1 as build
+
+RUN rustup target add x86_64-unknown-linux-musl && \
+    apt update && \
+    apt install -y musl-tools musl-dev && \
+    update-ca-certificates
+
+COPY ./src ./src
+COPY ./Cargo.lock .
+COPY ./Cargo.toml .
+
+RUN cargo build --target x86_64-unknown-linux-musl --release
+
+ENTRYPOINT ["./target/x86_64-unknown-linux-musl/release/connect4-moderator-server"]