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-accounting-export/src/names.js

@@ -0,0 +1,25 @@
+/** Join ledger ids to zappier-edge customer display names. */
+export async function withCustomerName(st, idOrName, edge, key) {
+  const out = { ...(st || {}) };
+  if (out.name && out.customerId) return out;
+  try {
+    const r = await fetch(`${edge.replace(/\/$/, '')}/admin/api/customers`, {
+      headers: { 'x-admin-key': key },
+    });
+    const { customers } = await r.json();
+    const want = String(idOrName || out.customerId || '').toLowerCase();
+    const c = (customers || []).find(
+      (x) =>
+        x.id === idOrName ||
+        x.id === out.customerId ||
+        String(x.name || '').toLowerCase() === want,
+    );
+    if (c) {
+      out.name = c.name;
+      out.customerId = c.id;
+    }
+  } catch {
+    /* edge optional */
+  }
+  return out;
+}