- Decouple task-mode node execution from default output binding so standard text output does not prematurely finish the node.
- Enhance the runner to automatically resolve and reuse the invocation_id of active suspended task nodes.
- Route incoming plain text resume messages to the active task node by mapping to its isolation scope.
- Enforce strict concurrency serialization by suspending parallel branch execution when a task node is waiting for user input.
- Align schema validation helpers to cleanly handle Content wrapping and raw JSON strings.
Co-authored-by: Shangjie Chen <deanchen@google.com>
PiperOrigin-RevId: 945423735
Shangjie Chen