Retain runtime base a03b927dc9d1fac0e6085f1275cd8f8504c36648 unchanged. Add versioned AnyBytes 0.20.3 and maryml-cubecl 0.10.0 package identity while preserving the cubecl Rust alias. Required scripts/preflight.sh passed: formatting, 66 unit tests and 36 doc tests; optional GPU integration contains zero tests under the default feature selection and is not claimed exercised.

Source and lockfile byte identities were unchanged during the bounded preflight (validation/preflight-gate-1). This is a local release-candidate commit only, no push/tag/publication.