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/custom-auth/test/authentication.test.js

@@ -0,0 +1,35 @@
+/* globals describe, it, expect */
+
+const zapier = require('zapier-platform-core');
+
+const App = require('../index');
+const appTester = zapier.createAppTester(App);
+
+describe('custom auth', () => {
+  it('passes authentication and returns json', async () => {
+    const bundle = {
+      authData: {
+        apiKey: 'secret',
+      },
+    };
+
+    const response = await appTester(App.authentication.test, bundle);
+    expect(response.data).toHaveProperty('username');
+  });
+
+  it('fails on bad auth', async () => {
+    const bundle = {
+      authData: {
+        apiKey: 'bad',
+      },
+    };
+
+    try {
+      await appTester(App.authentication.test, bundle);
+    } catch (error) {
+      expect(error.message).toContain('The API Key you supplied is incorrect');
+      return;
+    }
+    throw new Error('appTester should have thrown');
+  });
+});