* feat: Implement return-to-previous routing in handoff workflow
- Also obsoletes HandoffsWorkflowBuilder => HandoffWorkflowBuilder (no "s")
* refactor: Remove instance-shared current agent tracking in handoffs
Because the tracker was instance-shared between the start and end executors, it would be shared between all sessions, resulting in incorrect behaviour.
The corect way to do this is to keep the data in a shared executor scope, which is per-session.
* fix: Fix test logic for Handoff to correctly use checkpointing for multiturn
Jacob AlberandGitHub
5530bc536b