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/legacy-scripting-runner/README.md

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+# Zapier Platform Legacy Runner
+
+This is Zapier's Legacy Scripting Runner, used by Web Builder apps converted to [CLI](https://docs.zapier.com/platform).
+
+This allows you to run methods from existing Scripting code in CLI, and handles the bundle conversion and method availability automatically for you.
+
+You shouldn't have to install anything. This package will be required and installed by your app automatically, if necessary, after running `zapier-platform convert`. You only need [CLI installed](https://docs.zapier.com/platform) (i.e. `npm i -g zapier-platform-cli`).
+
+## Steps
+
+1. `zapier-platform convert <YOUR_APP_ID> <FOLDER_TO_PUT_APP_INTO>`
+2. `cd <FOLDER_TO_PUT_APP_INTO> && npm install`
+3. `zapier-platform test`.
+
+Note `scripting.js` should look very familiar to you.
+
+## Known Limitations
+
+- `z.cookie_jar` is unavailable (uncommon).
+- `bundle.zap` won't be filled out in most cases (CLI doesn't receive this information except for `performSubscribe` and `performUnsubscribe` in Hooks).
+
+## Development
+
+Note this section is intended for Zapier engineers, not for App Developers.
+
+1. Clone this repo and run `npm link` inside of it;
+2. Convert an app;
+3. Inside the app run `npm link zapier-platform-legacy-scripting-runner`.
+
+## Testing
+
+`npm test` runs some unit tests, `npm run ci-test` pulls the "full-test" app and runs `zapier-platform test` in it.
+
+## Releasing
+
+1. Run `npm version [patch|minor|major]` to update the version in `package.json` and push a version tag to GitHub.
+2. Wait for [Travis](https://travis-ci.org/zapier/zapier-platform-legacy-scripting-runner) to publish the package to npm.
+
+## Test Repos
+
+Some repos might be private. They might have more instructions in their own READMEs.
+
+This is the "full test" for the legacy-scripting-runner:
+
+- [Full Test](https://github.com/zapier/zapier-platform-app-converted-full-test)
+
+A few converted sample apps (proofs of concept):
+
+- [Google Maps](https://github.com/zapier/zapier-platform-app-converted-google-maps)
+- [Instapaper](https://github.com/zapier/zapier-platform-app-converted-instapaper)
+- [Remember The Milk](https://github.com/zapier/zapier-platform-app-converted-remember-the-milk)