Nested Workflows

Example	Description
Nested Workflow	Basic nested workflow: inner research pipeline feeds into outer writing step.
Auto-Wrap	Pass a `Workflow` directly in the `steps` list without wrapping in `Step()`.
Event Inspection	Stream events from nested workflows and inspect `nested_depth`, `workflow_id`, and `workflow_name`.
With Condition	Inner workflow contains a `Condition` step for conditional fact-checking.
With Loop	Inner workflow contains a `Loop` step for iterative research refinement.
With Router	Inner workflow contains a `Router` step for topic-based specialist routing.
Deeply Nested (3 Levels)	Three levels of nesting with parallel branches at level 2.