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.

research/zapier/raw/docs/integrations/news/2026/v18.2.2.md

@@ -0,0 +1,28 @@
+> ## Documentation Index
+> Fetch the complete documentation index at: https://docs.zapier.com/llms.txt
+> Use this file to discover all available pages before exploring further.
+
+# What's changed in v18.2.2
+
+> Bug fix for legacy-scripting-runner module loading
+
+*Released: 2026-02-26*
+
+Improved error handling when loading the legacy-scripting-runner module in core. The runtime now logs a warning with the actual error message when the module is installed but fails to load, making it easier to diagnose issues like missing transitive dependencies.
+
+## cli
+
+None!
+
+## core
+
+* 🐛 Log a warning when `zapier-platform-legacy-scripting-runner` is installed but fails to load, instead of silently returning null ([#1247](https://github.com/zapier/zapier-platform/pull/1247))
+
+## schema
+
+None!
+
+## misc
+
+* 🔨 Fix publishing workflow to run on pushes to `main` ([#1243](https://github.com/zapier/zapier-platform/pull/1243))
+* 🔨 Add non-interactive mode to bump script ([#1249](https://github.com/zapier/zapier-platform/pull/1249))