Initial import of zappier-identity from zapier monorepo

src/ids.js

@@ -0,0 +1,15 @@
+import { createHash } from 'node:crypto';
+
+export function stableVeraeUserId(username) {
+  const n = String(username || '')
+    .trim()
+    .toLowerCase();
+  return `vu_${createHash('sha256').update(n).digest('hex').slice(0, 16)}`;
+}
+
+export function bindEmail(email) {
+  const veraeUsername = String(email || '')
+    .trim()
+    .toLowerCase();
+  return { veraeUserId: stableVeraeUserId(veraeUsername), veraeUsername, bound: true };
+}