cybedtools 0.4.1

First-time-user defect fixes found against the published v0.4.0 / PyPI 0.1.0, fixed identically in R and Python.

• CSEC2017 held from the 2026.09.2 data release (owner correction, on this branch before the fixes below): docs/data-release.yml moves csec2017 from shipped to held, pending steward confirmation.
• Slug alias resolution. cybed_license() and framework_similarity() now accept either the versioned framework slug (e.g. "nice-v2") or the short release-file slug (e.g. "nice"), matching cybed_fetch()'s existing behavior. The alias map is derived once, in R/slug-alias.R (cybedtools/_slug_alias.py in Python), from the shipped framework_summary/framework_licenses tables, reusing the short-slug rule scripts/030-export-release.R's release_license_row() applies. cybed_fetch()'s result now carries both framework_slug (canonical, versioned) and release_slug (short) columns explicitly, rather than silently substituting one for the other.
• framework_similarity() errors on an unknown from/to slug with class cybedtools_framework_not_found (a specific exception in Python), listing the graph's known slugs, instead of silently returning an empty result.
• Python cybed_fetch()/load_graph() accept a bare string for frameworks as one slug, not an iterable of its characters.
• version accepts a data-v-prefixed value (e.g. "data-v2026.09.2", matching a GitHub release tag) in both cybed_fetch() implementations; the leading data-v is stripped.
• README and quick-start docs lead with the user path: install, then cybed_fetch()/load_graph(), then query examples. The ingestion pipeline (scripts/000-build.R) moves to a separate "Rebuilding the graph from source (maintainers)" section, consistent across README.qmd, concordance/start/install.qmd, and the getting-started vignette. The Zenodo data-release DOI (10.5281/zenodo.22884320) is now named alongside the data release.
• Concordance framework pages' footer LICENSE/asset links are root-relative, fixing a 404 from any page under a subdirectory (e.g. frameworks/).
• CITATION.cff and DESCRIPTION's Description no longer describe cybedtools as an R-only pipeline or hand-list frameworks; both now point to framework_summary() for the current list and note the shared R/Python API.