The Visual Workflow-to-Code Compiler

 Build a Visual Workflow-to-Code Compiler that lets users design workflows using connected nodes representing inputs, transformations, conditions, API calls, approvals, retries, and outputs. Compile the workflow into readable, maintainable code for a selected runtime, starting with TypeScript. Include static validation, type checking, dependency resolution, error-path handling, and deterministic test generation. Allow users to inspect how each visual node maps to generated code and preserve custom code blocks across regeneration. Support version history and execution previews using mocked integrations. Never execute arbitrary generated code without an explicit sandbox, and clearly identify external services, credentials, and runtime dependencies that must be configured separately.