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/creates/create_timestamp.js

@@ -0,0 +1,37 @@
+const base = () => process.env.MIDDLEWARE_BASE_URL || 'http://127.0.0.1:3100';
+
+const perform = async (z, bundle) => {
+  const response = await z.request({
+    method: 'POST',
+    url: `${base()}/zapier/v1/timestamp`,
+    body: {
+      data: bundle.inputData.data,
+      hashAlg: bundle.inputData.hashAlg || undefined,
+    },
+  });
+  return response.data;
+};
+
+module.exports = {
+  key: 'create_timestamp',
+  noun: 'Timestamp',
+  display: {
+    label: 'Create Timestamp (Async)',
+    description: 'Submits data for timestamping and returns a job ID.',
+  },
+  operation: {
+    inputFields: [
+      { key: 'data', label: 'Data', type: 'string', required: true },
+      {
+        key: 'hashAlg',
+        label: 'Hash Algorithm',
+        type: 'string',
+        required: false,
+        default: 'SHA256',
+      },
+    ],
+    perform,
+    sample: { jobId: '550e8400-e29b-41d4-a716-446655440000' },
+    outputFields: [{ key: 'jobId', label: 'Job ID' }],
+  },
+};