56bd9ddc85
The manager moved from an opaque extension field to an ownership-backed
canonical assignment: SquadProjectionInput.manager (owned item) replaces
Fifa17SquadExtensionV1.manager.
- project_put stand-in passes manager: None; baseline asserts the manager
projects empty when none is owned.
- persisted_read registers the manager's owned instance + identity and
passes it as the assignment, asserting the resolved [{id,dream}] ref
round-trips to the read oracle's manager.