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/files/test/hydrators.test.js

@@ -0,0 +1,27 @@
+/* globals describe, expect, test */
+
+const zapier = require('zapier-platform-core');
+
+const App = require('../index');
+const appTester = zapier.createAppTester(App);
+zapier.tools.env.inject();
+
+describe('downloadFile', () => {
+  test('download file', async () => {
+    if (!process.env.ZAPIER_DEPLOY_KEY) {
+      console.warn('skipped as ZAPIER_DEPLOY_KEY is not defined');
+      return;
+    }
+
+    const bundle = {
+      inputData: {
+        url: 'https://httpbin.zapier-tooling.com/xml',
+      },
+    };
+
+    const url = await appTester(App.hydrators.downloadFile, bundle);
+    expect(url).toContain(
+      'https://zapier-dev-files.s3.amazonaws.com/cli-platform/',
+    );
+  });
+});