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/AuthFieldSchema.js

@@ -0,0 +1,131 @@
+'use strict';
+
+const makeSchema = require('../utils/makeSchema');
+const FieldChoicesSchema = require('./FieldChoicesSchema');
+const PlainFieldSchema = require('./PlainFieldSchema');
+
+module.exports = makeSchema(
+  {
+    id: '/AuthFieldSchema',
+    description: `Field schema specialized for authentication fields. ${PlainFieldSchema.schema.description}`,
+    required: ['key'],
+    type: 'object',
+    properties: {
+      ...PlainFieldSchema.schema.properties,
+      children: {
+        type: 'array',
+        items: { $ref: '/AuthFieldSchema' },
+        description:
+          'An array of child fields that define the structure of a sub-object for this field. Usually used for line items.',
+        minItems: 1,
+      },
+      helpText: {
+        description:
+          'A human readable description of this value (IE: "The first part of a full name."). You can use Markdown.',
+        type: 'string',
+        minLength: 1,
+        maxLength: 1000,
+      },
+      type: {
+        description: 'The type of this value used to be.',
+        type: 'string',
+        enum: [
+          'string',
+          'number',
+          'boolean',
+          'datetime',
+          'copy',
+          'password',
+          'integer',
+          'text',
+        ],
+      },
+      required: {
+        description:
+          'If this value is required or not. This defaults to `true`.',
+        type: 'boolean',
+      },
+      placeholder: {
+        description: 'An example value that is not saved.',
+        type: 'string',
+        minLength: 1,
+      },
+      choices: {
+        description:
+          'An object of machine keys and human values to populate a static dropdown.',
+        $ref: FieldChoicesSchema.id,
+      },
+      computed: {
+        description:
+          'Is this field automatically populated (and hidden from the user)? Note: Only OAuth and Session Auth support fields with this key.',
+        type: 'boolean',
+      },
+      inputFormat: {
+        description:
+          'Useful when you expect the input to be part of a longer string. Put "{{input}}" in place of the user\'s input (IE: "https://{{input}}.yourdomain.com").',
+        type: 'string',
+        // TODO: Check if it contains one and ONLY ONE '{{input}}'
+        pattern: '^.*{{input}}.*$',
+      },
+      isNoSecret: {
+        description:
+          'Indicates if this authentication field is safe to e.g. be stored without encryption or displayed (not a secret).',
+        type: 'boolean',
+      },
+    },
+
+    // Add examples and anti-examples specifically for basic & custom auth
+    examples: [
+      // Basic Auth - email & password
+      {
+        key: 'email',
+        type: 'string',
+        isNoSecret: true,
+        required: true,
+      },
+      {
+        key: 'password',
+        type: 'password',
+        isNoSecret: false,
+        required: true,
+      },
+
+      // Custom Auth - api key
+      {
+        key: 'api_key',
+        type: 'string',
+        isNoSecret: false,
+        required: true,
+      },
+    ],
+
+    antiExamples: [
+      {
+        example: {
+          key: 'password',
+          type: 'password',
+          isNoSecret: true,
+          required: true,
+        },
+        reason:
+          '"password" is a sensitive field and cannot have isNoSecret set as true.',
+      },
+      {
+        example: {
+          key: 'api_key',
+          isNoSecret: true,
+        },
+        reason:
+          '"api_key" is a sensitive field and cannot have isNoSecret set as true.',
+      },
+      {
+        example: {
+          type: 'string',
+          isNoSecret: false,
+        },
+        reason: 'Missing required key: key',
+      },
+    ],
+  },
+  [FieldChoicesSchema, PlainFieldSchema],
+);