build: add container and deployment configuration

Dockerfile

@@ -0,0 +1,23 @@
+FROM --platform=$BUILDPLATFORM golang:1.27-alpine AS build
+ARG TARGETOS TARGETARCH
+ARG VERSION=dev
+WORKDIR /src
+COPY go.mod go.sum ./
+COPY cmd ./cmd
+COPY db ./db
+COPY internal ./internal
+COPY protocol ./protocol
+RUN CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH go build -trimpath -tags grpcnotrace \
+    -ldflags "-s -w -X github.com/dihemoe/alisten/internal/bootstrap.version=$VERSION" \
+    -o /out/alisten ./cmd/alisten
+
+FROM gcr.io/distroless/static-debian13:nonroot AS alisten
+COPY LICENSE /usr/share/doc/alisten/
+COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
+COPY --from=build /out/alisten /usr/local/bin/alisten
+USER 65532:65532
+EXPOSE 8080 9090
+HEALTHCHECK --start-period=30s --start-interval=1s --interval=10s --timeout=3s --retries=3 \
+    CMD ["/usr/local/bin/alisten", "healthcheck"]
+ENTRYPOINT ["/usr/local/bin/alisten"]
+CMD ["serve"]