feat: add dockerfile

server/Dockerfile

@@ -0,0 +1,16 @@
+FROM golang:1.24.7 AS build
+WORKDIR /src
+COPY . .
+RUN --mount=type=cache,target=/go/pkg/mod \
+    --mount=type=cache,target=/root/.cache/go-build \
+    CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
+    go build -trimpath -ldflags="-s -w" \
+    -o /out/server ./server/cmd/marka-server
+
+FROM scratch
+WORKDIR /srv
+COPY --from=build /out/server /server
+USER 65532:65532
+EXPOSE 8080
+CMD ["/server","-root=/srv","-addr=:8080"]
+