Function annotate

packages/workflow/src/Workflow.ts:289–294

(tag, value)

    errorSchema: options.error ?? Schema.Never as any,
    annotations: options.annotations ?? Context.empty(),
    annotate(tag, value) {
      return make({
        ...options,
        annotations: Context.add(self.annotations, tag, value)
      })
    },
    annotateContext(context) {
      return make({
        ...options,