It is difficult to say what API version zitadel-node uses. It seems that the API is not versioned or anything. This also makes it difficult to ensure the correct behavior, because some endpoints work differently.
I tried to find V2 version of add human user from zitadel-node, but I couldn't. Perhaps V2 is not supported at all (?)
Could you please add support for V2 API (in addition to V1)? Or at least make it clear which API version is used.