Function audio_duration_ms

app/server/runtime.cpp:191–197

void write_sse_done(HttpStreamWriter & writer) {
    writer.write("data: [DONE]\n\n");
}

bool bool_field(const Value & object, const std::string & key, bool default_value) {
    const auto * value = object.find(key);
    if (value == nullptr || value->is_null()) {
        return default_value;
    }
    if (value->is_bool()) {
        return value->as_bool();
    }