NATS — zappier-edge

Zapier cloud still never connects to NATS. The edge process does publish and request on the private billing bus.

Direction	Address	Peer	Body
IN HTTPS	`/v1/*`	Zapier Platform app	JSON + `x-api-key`
OUT HTTPS	middleware `/zapier/v1/*`	verae-middleware	same tenant request
OUT NATS	`verae.billing.usage.recorded`	account-balance	meter event
OUT NATS	`verae.billing.payment.recorded`	account-balance / others	portal reload
OUT NATS	`verae.billing.credit.applied`	account-balance / others	admin/CS credit
OUT NATS	`verae.billing.statement.get`	account-balance	portal/admin review
OUT NATS	`verae.billing.balance.adjust`	account-balance	prepaid mutation

Jobs, archive, and webhooks stay on middleware workers.