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/packages/schema/lib/schemas/KeySchema.js

@@ -0,0 +1,30 @@
+'use strict';
+
+const makeSchema = require('../utils/makeSchema');
+
+module.exports = makeSchema({
+  id: '/KeySchema',
+  description: 'A unique identifier for this item.',
+  type: 'string',
+  minLength: 2,
+  pattern: '^[a-zA-Z]+[a-zA-Z0-9_]*$',
+  examples: ['vk', 'validKey', 'ValidKey', 'Valid_Key_2'],
+  antiExamples: [
+    {
+      example: '',
+      reason: 'Cannot be empty',
+    },
+    {
+      example: 'A',
+      reason: 'Minimum of two characters',
+    },
+    {
+      example: '1_Key',
+      reason: 'Must start with a letter',
+    },
+    {
+      example: 'a-Key',
+      reason: 'Must not use dashes',
+    },
+  ],
+});