add backoffice and move stuff

Dockerfile

@@ -59,6 +59,13 @@ RUN --mount=type=cache,target=/go/build-cache \
     -X main.BuildDate=${BUILD_DATE}" \
     -o /out/go-cart-actor ./cmd/cart
 
+RUN --mount=type=cache,target=/go/build-cache \
+    go build -trimpath -ldflags="-s -w \
+    -X main.Version=${VERSION} \
+    -X main.GitCommit=${GIT_COMMIT} \
+    -X main.BuildDate=${BUILD_DATE}" \
+    -o /out/go-cart-backoffice ./cmd/backoffice
+
 ############################
 # Runtime Stage
 ############################
@@ -67,6 +74,7 @@ FROM gcr.io/distroless/static-debian12:nonroot AS runtime
 WORKDIR /
 
 COPY --from=build /out/go-cart-actor /go-cart-actor
+COPY --from=build /out/go-cart-backoffice /go-cart-backoffice
 
 # Document (not expose forcibly) typical ports: 8080 (HTTP), 1337 (gRPC)
 EXPOSE 8080 1337