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/package.json

@@ -0,0 +1,41 @@
+{
+  "name": "zapier-platform-schema",
+  "version": "19.1.0",
+  "description": "Schema definition for CLI apps in the Zapier Developer Platform.",
+  "repository": "zapier/zapier-platform",
+  "homepage": "https://platform.zapier.com/",
+  "author": "Zapier Engineering <contact@zapier.com>",
+  "license": "SEE LICENSE IN LICENSE",
+  "main": "schema.js",
+  "files": [
+    "/exported-schema.json",
+    "/lib/**/*.js",
+    "/schema.js"
+  ],
+  "scripts": {
+    "preversion": "git pull && pnpm test && pnpm build",
+    "test": "mocha -t 10s --recursive test --exit",
+    "smoke-test": "mocha -t 10s --recursive smoke-test --exit",
+    "test:debug": "mocha inspect --recursive test",
+    "lint": "eslint lib",
+    "lint:fix": "eslint --fix lib",
+    "coverage": "istanbul cover _mocha -- --recursive",
+    "export": "node bin/export.js && prettier --write exported-schema.json",
+    "build-docs": "node bin/docs.js",
+    "build": "pnpm build-docs && pnpm export",
+    "git-add": "git add exported-schema.json README.md docs",
+    "precommit": "pnpm build && pnpm git-add",
+    "validate": "pnpm test && pnpm lint && pnpm smoke-test"
+  },
+  "dependencies": {
+    "json-metaschema": "1.3.0",
+    "jsonschema": "1.5.0",
+    "lodash": "4.18.1"
+  },
+  "devDependencies": {
+    "fs-extra": "^11.3.0",
+    "istanbul": "0.4.5",
+    "markdown-toc": "^1",
+    "node-fetch": "^2"
+  }
+}