Add customer names on the ledger, staff session login, and exclusive jobs.events.

Account-balance stores display names and looks up by name. Edge writes
names on customer create/edit; staff UIs join from edge when needed.
New verae-staff-session issues a host cookie; department HTML redirects
when STAFF_AUTH=1. JOBS_EVENTS_EXCLUSIVE lets jobs-events own the durable
consumer. Catalog index is cards; disabled fleet machines are grey.

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

@@ -24,6 +24,14 @@ test('adjust credits prepaid and statement lists credits usage payments', () =>
   assert.equal(st.payments[0].kind, 'payment');
 });
 
+test('customer.put stores display name and lookup by name', () => {
+  const books = new AccountBooks();
+  handle(SUBJECTS.CUSTOMER_PUT, { customerId: 'cust_1', name: 'Ada (free)' }, books);
+  const st = handle(SUBJECTS.STATEMENT_GET, { customerId: 'Ada (free)' }, books);
+  assert.equal(st.customerId, 'cust_1');
+  assert.equal(st.name, 'Ada (free)');
+});
+
 test('persist round-trip keeps prepaid', () => {
   const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'books-'));
   process.env.BOOKS_PATH = path.join(dir, 'books.json');