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>
b67dae88e1Julius Marminge committed on 9/1/2026, 4:32:03 AMparentc5d43e4
3 files changedLine totals unavailable