Workflow Orchestration with Metaflow & Kiln AI

Orchestrate the end-to-end code review and refactoring workflow. Describe how Metaflow steps will manage the sequential process (e.g., fetch code, trigger review, receive suggestions, simulate PR creation). Explain how Kiln AI will be used to manage the lifecycle, state, and observability of your OpenAI Agents SDK agents within this Metaflow workflow. Provide pseudo-code or a detailed design outline for this orchestration layer, demonstrating how agents are invoked and their outputs handled.