millionVerifier.onEvent runs for credit and bulk-file notifications.
automations/millionverifier-on-event.automation.ts
account selects a static MillionVerifier API-key binding and defaults to the project binding. Runtime signals cannot select the watched account.
Returns a discriminated union with reason: noCredit, lowCredit, fileReady, or fileDeletionScheduled. Narrow on reason to access credit or file details.
Complete the manual callback setup in the MillionVerifier overview after deployment.