Milestone 0: import zappier billing, Verae middleware, and Zapier research

Compose-ready workspace: packages/zappier (rate card, portal, Stripe),
packages/verae-zapier-middleware (timestamp + NATS), packages/verae-zapier
(CLI app), vendor/zapier-platform, and research/zapier vendor corpus.

Gate 0 structure checks pass. Product code and research are not yet wired.

packages/verae-zapier-middleware/test/integration/tenants.test.js

@@ -0,0 +1,93 @@
+/**
+ * GATE 10 — Signup and admin provision
+ */
+
+import { describe, it, before, after } from 'node:test';
+import assert from 'node:assert/strict';
+import { createApp } from '../../src/app.js';
+import { useTempStore } from '../helpers.js';
+import { config } from '../../src/config.js';
+
+describe('tenancy', () => {
+  let ctx;
+  let server;
+  let port;
+
+  before(async () => {
+    ctx = useTempStore();
+    const app = createApp({ load: false });
+    await new Promise((resolve) => {
+      server = app.listen(0, '127.0.0.1', () => {
+        port = server.address().port;
+        resolve();
+      });
+    });
+  });
+
+  after(async () => {
+    await new Promise((r) => server.close(r));
+    ctx.cleanup();
+  });
+
+  it('POST /zapier/v1/signup returns free plan + apiKey', async () => {
+    const res = await fetch(`http://127.0.0.1:${port}/zapier/v1/signup`, {
+      method: 'POST',
+      headers: { 'content-type': 'application/json' },
+      body: JSON.stringify({
+        email: 'user@example.com',
+        name: 'Self Serve Co',
+        veraeUsername: 'selfuser',
+        veraePassword: 'selfpass',
+      }),
+    });
+    assert.equal(res.status, 201);
+    const body = await res.json();
+    assert.equal(body.tenant.plan, 'free');
+    assert.ok(body.apiKey.startsWith('zmw_'));
+  });
+
+  it('enterprise without contract rejected', async () => {
+    const res = await fetch(`http://127.0.0.1:${port}/zapier/v1/admin/tenants`, {
+      method: 'POST',
+      headers: {
+        'content-type': 'application/json',
+        'x-admin-secret': config.adminSecret,
+      },
+      body: JSON.stringify({
+        name: 'Ent Co',
+        plan: 'enterprise',
+        veraeUsername: 'e',
+        veraePassword: 'p',
+      }),
+    });
+    assert.equal(res.status, 400);
+    const body = await res.json();
+    assert.equal(body.code, 'VALIDATION_ERROR');
+  });
+
+  it('admin list does not leak passwords', async () => {
+    const create = await fetch(`http://127.0.0.1:${port}/zapier/v1/admin/tenants`, {
+      method: 'POST',
+      headers: {
+        'content-type': 'application/json',
+        'x-admin-secret': config.adminSecret,
+      },
+      body: JSON.stringify({
+        name: 'Pro Co',
+        plan: 'pro',
+        veraeUsername: 'puser',
+        veraePassword: 'ppass',
+      }),
+    });
+    assert.equal(create.status, 201);
+
+    const res = await fetch(`http://127.0.0.1:${port}/zapier/v1/admin/tenants`, {
+      headers: { 'x-admin-secret': config.adminSecret },
+    });
+    assert.equal(res.status, 200);
+    const body = await res.json();
+    const json = JSON.stringify(body);
+    assert.doesNotMatch(json, /ppass/);
+    assert.doesNotMatch(json, /veraePassword/);
+  });
+});