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.

vendor/zapier-platform/example-apps/session-auth/test/authentication.test.js

@@ -0,0 +1,37 @@
+/* globals describe, it, expect */
+
+const zapier = require('zapier-platform-core');
+
+const App = require('../index');
+const appTester = zapier.createAppTester(App);
+
+describe('session auth app', () => {
+  it('has an exchange for username/password', async () => {
+    const bundle = {
+      authData: {
+        username: 'bryan',
+        password: 'hunter2',
+      },
+    };
+
+    const newAuthData = await appTester(
+      App.authentication.sessionConfig.perform,
+      bundle,
+    );
+
+    expect(newAuthData.sessionKey).toBe('secret');
+  });
+
+  it('has auth details added to every request', async () => {
+    const bundle = {
+      authData: {
+        sessionKey: 'secret',
+      },
+    };
+
+    const response = await appTester(App.authentication.test, bundle);
+
+    expect(response.status).toBe(200);
+    expect(response.request.headers['X-API-Key']).toBe('secret');
+  });
+});