emulate v0.12.3 - AWS Cognito: User & Identity Pools, signed tokens, local OAuth, SDK support - Slack: Interactive buttons, modals, signed callbacks, event retries, Slack Connect, lifecycle simulation - SQS: JSON protocol support for modern AWS SDKs - Google OAuth: Optional token & scope validation - Resend: Recipient restrictions, persisted send attempts - Vercel Blob: Upload, listing, delete and multipart fixes - GitHub: Check-run pagination, App identity…