Function write_workflow_manifest

app/workflow/workflow.cpp:1151–1167

        const std::string prefix = id + ".";
        for (const auto & [key, value] : context.values) {
            if (key.rfind(prefix, 0) == 0) {
                output_item[key.substr(prefix.size())] = value;
            }
        }
        output_items.push_back(std::move(output_item));
    }

    context.values = base_values;
    context.values[id + ".count"] = std::to_string(output_items.size());
    context.batches[id] = std::move(output_items);
    std::cout << "workflow_step=" << id << "\n";
    std::cout << "batch_items=" << context.values[id + ".count"] << "\n";
}

void write_workflow_manifest(const WorkflowContext & context) {
    const auto path = context.output_dir / "workflow_manifest.json";
    std::filesystem::create_directories(context.output_dir);
    std::ofstream out(path);
    out << "{";
    bool first = true;