Allow creating a MemoChat from Matrix by inviting own puppet to DM

WARNING: Seems to always fail with -203 (Invalid body)

node/src/client.js

@@ -1135,10 +1135,16 @@ export default class PeerClient {
 	 * @param {Long} req.user_id
 	 */
 	createDirectChat = async (req) => {
-		const channelList = this.#getUser(req.mxid).talkClient.channelList.normal
-		const res = await channelList.createChannel({
-			userList: [{ userId: req.user_id }],
-		})
+		const userClient = this.#getUser(req.mxid)
+		const channelList = userClient.talkClient.channelList.normal
+
+		const res = 
+			req.user_id != userClient.userId
+			? await channelList.createChannel({
+				userList: [{ userId: req.user_id }],
+			})
+			: await channelList.createMemoChannel()
+
 		if (!res.success) return res
 		return makeCommandResult(res.result.channelId)
 	}