Show HN: Sectr – Serverless backend platform for easy deployment of AI agents

Sectr is a serverless backend platform that lets you register agents built with any framework and deploy them to the cloud with one command, exposing each as an AG-UI endpoint for CopilotKit frontends. It offers local development via `sectr dev`, serverless human-in-the-loop approvals that suspend and scale to zero while waiting, and persisted streaming with a session journal and dashboard replay. Sectr is free during beta and supports sign-up with GitHub, Google, Vercel or email.