add docker compose deployment docs

Dockerfile

@@ -0,0 +1,16 @@
+FROM node:22-bookworm-slim
+
+WORKDIR /app
+
+RUN apt-get update \
+  && apt-get install -y --no-install-recommends ca-certificates python3 make g++ \
+  && rm -rf /var/lib/apt/lists/*
+
+COPY package.json package-lock.json ./
+RUN npm ci
+
+COPY . .
+
+EXPOSE 3000 3002
+
+CMD ["sh", "-c", "npm run dev -- --host 0.0.0.0 --strictPort & npm run api"]