test(orchestrator): align merged V2 compatibility checks

Remove the unreferenced V1 activity payload projection that arrived from main and assert only the public serialized SchemaError shape under Effect beta.102.

Co-authored-by: codex <codex@users.noreply.github.com>
a5e560b14eJulius Marminge committed on 9/5/2026, 4:54:21 AMparent87117c2
3 files changedLine totals unavailable