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>
eb1ba20bfeJulius Marminge committed on 8/29/2026, 6:01:50 AMparentedaa874
3 files changedLine totals unavailable