Bind each customer to a Verae userId for hop tracing

Signup registers/binds a Verae central user and stores veraeUserId. Public access stays the zappier API key. Chain JWTs stay server-side behind tokenRef. Authz, billing, and jobs.watch carry veraeUserId.

packages/zappier-account-balance/src/books.js

@@ -5,16 +5,23 @@ export class AccountBooks {
   constructor() {
     /** @type {Record<string, number>} */
     this.prepaid = {};
+    /** @type {Record<string, string>} */
+    this.veraeUserIds = {};
     this.credits = [];
     this.usage = [];
     this.payments = [];
   }
 
+  remember(customerId, veraeUserId) {
+    if (customerId && veraeUserId) this.veraeUserIds[customerId] = veraeUserId;
+  }
+
   prepaidCents(customerId) {
     return this.prepaid[customerId] ?? 0;
   }
 
-  adjust({ customerId, cents, reason, agent, kind = 'credit' }) {
+  adjust({ customerId, cents, reason, agent, kind = 'credit', veraeUserId }) {
+    this.remember(customerId, veraeUserId);
     const delta = Math.trunc(Number(cents) || 0);
     const next = this.prepaidCents(customerId) + delta;
     this.prepaid[customerId] = next;
@@ -34,6 +41,7 @@ export class AccountBooks {
   }
 
   recordUsage(entry) {
+    this.remember(entry.customerId, entry.veraeUserId);
     const cents = Number(entry.cents) || 0;
     const customerId = entry.customerId;
     const next = this.prepaidCents(customerId) - cents;
@@ -63,6 +71,7 @@ export class AccountBooks {
     const match = (rows) => rows.filter((r) => r.customerId === customerId).slice(0, 100);
     return {
       customerId,
+      veraeUserId: this.veraeUserIds[customerId],
       prepaidCents: this.prepaidCents(customerId),
       credits: match(this.credits),
       usage: match(this.usage),
@@ -74,6 +83,7 @@ export class AccountBooks {
 export function handle(subject, payload, books) {
   const p = payload || {};
   if (subject.endsWith('balance.get') || subject.endsWith('statement.get')) {
+    books.remember(p.customerId, p.veraeUserId);
     return books.statement(p.customerId);
   }
   if (subject.endsWith('balance.adjust') || subject.endsWith('credit.applied')) {