NAUT-1310: add SBOM RPCs to StorageService

pkg/client/v1/proto/Makefile

@@ -1,28 +1,36 @@
 .PHONY: proto install-deps help
 
 proto:
-	@echo "Generating gRPC code from proto files using protoc-gen-gogo..."
+	@echo "Generating message bindings with protoc-gen-gogo..."
 	@cd ../../../.. && go mod vendor
 	@protoc \
 		--proto_path=. \
 		--proto_path=../../../../vendor \
 		--gogo_out=. \
 		--gogo_opt=paths=source_relative \
 		storage_service.proto
+	@echo "Generating gRPC service stubs with protoc-gen-go-grpc..."
+	@protoc \
+		--proto_path=. \
+		--proto_path=../../../../vendor \
+		--go-grpc_out=. \
+		--go-grpc_opt=paths=source_relative \
+		storage_service.proto
+	@cd ../../../.. && rm -rf vendor
 	@echo "Proto generation complete!"
 	@echo ""
 	@echo "IMPORTANT: Commit the generated files (*.pb.go, *_grpc.pb.go) to the repository"
-	@echo "           You can delete the vendor directory after generation"
 
 install-deps:
 	@echo "Installing protoc dependencies..."
 	go install github.com/gogo/protobuf/protoc-gen-gogo@latest
+	go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
 	@echo "Dependencies installed!"
 
 help:
 	@echo "Available targets:"
-	@echo "  make install-deps  - Install protoc-gen-gogo"
-	@echo "  make proto         - Generate Go code from proto files using gogo (runs go mod vendor first)"
+	@echo "  make install-deps  - Install protoc-gen-gogo + protoc-gen-go-grpc"
+	@echo "  make proto         - Generate Go code from proto files (messages via gogo, services via go-grpc)"
 	@echo ""
 	@echo "After running 'make proto', commit the generated files to git:"
 	@echo "  git add *.pb.go *_grpc.pb.go"