Release follow-ups

Loose ends that are tracked against a shipped release but deliberately do not block its tag.

v0.8.0

• CLOSED — version DOI 10.5281/zenodo.21228328 archived 2026-07-06; ORCID added to .zenodo.json creators and CITATION.cff. The concept DOI 10.5281/zenodo.20128468 remains the canonical citation target.