docs(call): record review-call pass — implementation conforms to registry/protocol/ADR spec
call/review-call verified the alknet-call crate against operation-registry.md,
call-protocol.md, and ADRs 005/012/014/015/016/017/022/023/024. All
registry types, protocol types, security constraints (Capabilities
non-serializable/zeroized/immutable, metadata non-propagation, internal
ops -> NOT_FOUND, reachability bounds, UUID v4 request IDs), and pattern
consistency (OperationEnv trait, CompositeOperationEnv contains-probe,
authority switch, deadline inheritance) are conformant. 159 tests green;
build/clippy(fmt check) clean. No source changes required.