Add docker build

Dockerfile

@@ -0,0 +1,25 @@
+# Stage 1: Build frontend
+FROM node:20-slim AS frontend
+WORKDIR /app/frontend
+COPY frontend/package.json frontend/package-lock.json ./
+RUN npm ci
+COPY frontend/ ./
+RUN npm run build
+
+# Stage 2: Build Rust server
+FROM rust:1.83-bookworm AS server
+WORKDIR /app
+COPY server-rs/ server-rs/
+WORKDIR /app/server-rs
+RUN cargo build --release
+
+# Stage 3: Runtime
+FROM debian:bookworm-slim
+RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates && rm -rf /var/lib/apt/lists/*
+WORKDIR /app
+COPY --from=server /app/server-rs/target/release/property-map-server ./
+COPY --from=frontend /app/frontend/dist ./dist/
+
+EXPOSE 8001
+ENTRYPOINT ["./property-map-server"]
+CMD ["--data", "/data/wide.parquet", "--pois", "/data/filtered_uk_pois.parquet"]