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/timestamp_and_wait.js

@@ -0,0 +1,54 @@
+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/wait`,
+    body: {
+      data: bundle.inputData.data,
+      hashAlg: bundle.inputData.hashAlg || undefined,
+    },
+  });
+  return response.data;
+};
+
+module.exports = {
+  key: 'timestamp_and_wait',
+  noun: 'Timestamp',
+  display: {
+    label: 'Create Timestamp and Wait',
+    description:
+      'Submits data for blockchain timestamping and waits for the certificate.',
+  },
+  operation: {
+    inputFields: [
+      {
+        key: 'data',
+        label: 'Data',
+        type: 'string',
+        required: true,
+        helpText: 'Content to timestamp on the blockchain.',
+      },
+      {
+        key: 'hashAlg',
+        label: 'Hash Algorithm',
+        type: 'string',
+        required: false,
+        default: 'SHA256',
+      },
+    ],
+    perform,
+    sample: {
+      id: '550e8400-e29b-41d4-a716-446655440000',
+      status: 'completed',
+      result: 'mock-cert-example',
+      completedAt: '2023-01-01T12:05:00Z',
+    },
+    outputFields: [
+      { key: 'id', label: 'Job ID' },
+      { key: 'status', label: 'Status' },
+      { key: 'result', label: 'Certificate' },
+      { key: 'completedAt', label: 'Completed At', type: 'datetime' },
+    ],
+  },
+};