WorkflowBridge
Source:
src/Cloudflare/Workers/WorkflowBridge.ts
Create a WorkflowBridge class that extends WorkflowEntrypoint and
delegates the run(event, step) call to the Effect-native workflow body
registered via worker.export(...).
The bridge provides WorkflowEvent and WorkflowStep as Effect
services so the user writes yield* WorkflowEvent and yield* task(...)
instead of receiving callback parameters.