idz: Add explicit CreateProfileResponse

src/idz/userdb/encoder/createProfile.ts

@@ -0,0 +1,11 @@
+import { CreateProfileResponse } from "../response/createProfile";
+
+export function createProfile(res: CreateProfileResponse) {
+  const buf = Buffer.alloc(0x0020);
+
+  // Shares message type code with the "generic" response
+  buf.writeInt16LE(0x0001, 0x0000);
+  buf.writeInt32LE(res.aimeId, 0x0004);
+
+  return buf;
+}