update cart

Dockerfile

@@ -38,12 +38,17 @@ ARG TARGETOS
 ARG TARGETARCH
 ENV CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH}
 
-# Dependency caching
-COPY go.mod go.sum ./
-RUN go mod download
+# Sibling module sources, supplied as BuildKit named contexts (see
+# deploy/docker-compose.yml additional_contexts + deploy/k8s/build-push.sh
+# --build-context). They are resolved locally via the go.work written below,
+# because the renamed git.k6n.net/mats/* modules are not yet published.
+COPY --from=slaskfinder . ./slask-finder
+COPY --from=redisinventory . ./go-redis-inventory
 
-# Copy full source (relay on .dockerignore to prune)
-COPY . .
+# This module's source (relay on .dockerignore to prune).
+COPY . ./go-cart-actor
+RUN printf 'go 1.26.2\n\nuse (\n\t.\n\t../slask-finder\n\t../go-redis-inventory\n)\n' > ./go-cart-actor/go.work
+WORKDIR /src/go-cart-actor
 
 # (Optional) If you do NOT check in generated protobuf code, uncomment generation:
 # RUN go install google.golang.org/protobuf/cmd/protoc-gen-go@latest && \