Close the UI-review follow-ups: names typeahead, fleet form, overflow flip.

Staff pages typeahead customers by name (Ada, not cust_1). Add-machine is
two rows with a wide identity path and filename picker. Overflow menus
flip up near the viewport edge. Customer list no longer leaks password
hashes. UI-REVIEW.pdf remaining list is the three leftover items.

packages/zappier-customer-service/src/names.js

@@ -1,4 +1,16 @@
 /** Join ledger ids to zappier-edge customer display names. */
+export async function listCustomers(edge, key) {
+  try {
+    const r = await fetch(`${edge.replace(/\/$/, '')}/admin/api/customers`, {
+      headers: { 'x-admin-key': key },
+    });
+    const body = await r.json();
+    return (body.customers || []).map(({ passwordHash, apiKey, totpSecret, ...rest }) => rest);
+  } catch {
+    return [];
+  }
+}
+
 export async function withCustomerName(st, idOrName, edge, key) {
   const out = { ...(st || {}) };
   if (out.name && out.customerId) return out;

packages/zappier-customer-service/src/server.js

@@ -7,7 +7,7 @@ import http from 'node:http';
 import path from 'node:path';
 import { fileURLToPath } from 'node:url';
 import { SUBJECTS, billingRequest } from './nats-billing.js';
-import { withCustomerName } from './names.js';
+import { listCustomers, withCustomerName } from './names.js';
 
 const PUBLIC = path.join(path.dirname(fileURLToPath(import.meta.url)), '..', 'public');
 
@@ -50,6 +50,9 @@ const server = http.createServer(async (req, res) => {
     if (req.method === 'GET' && url.pathname === '/health') {
       return json(200, { ok: true, role: 'zappier-customer-service', nats: Boolean(process.env.NATS_URL) });
     }
+    if (req.method === 'GET' && url.pathname === '/customers') {
+      return json(200, { customers: await listCustomers(EDGE, KEY) });
+    }
     const review = url.pathname.match(/^\/review\/([^/]+)$/);
     if (req.method === 'GET' && review) {
       const id = decodeURIComponent(review[1]);