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/FieldMetaSchema.js

@@ -0,0 +1,29 @@
+'use strict';
+
+const makeSchema = require('../utils/makeSchema');
+
+module.exports = makeSchema({
+  id: '/FieldMetaSchema',
+  type: 'object',
+  description: 'Allows for additional metadata to be stored on the field.',
+  patternProperties: {
+    '[^\\s]+': {
+      description: 'Only string, integer or boolean values are allowed.',
+      anyOf: [{ type: 'string' }, { type: 'integer' }, { type: 'boolean' }],
+    },
+  },
+  examples: [
+    { shouldCapitalize: true },
+    { shouldCapitalize: true, internalType: 'datetime' },
+  ],
+  antiExamples: [
+    {
+      example: { databank: { primaryContact: 'abc' } },
+      reason: 'No complex values allowed',
+    },
+    {
+      example: { needsProcessing: null },
+      reason: 'No null values allowed',
+    },
+  ],
+});