Strip references from CITATION.cff (env-independent lean form)

cffr generates the references section from locally-installed packages, which differs between dev machine (full deps installed) and CI runner (cffr only). Caused unnecessary churn between fat and lean CFFs.

Fix per soul/skills/citation-cff (commit 8bf61fe): use cffr::cff_create() + null out references + cff_write(). Workflow Rscript matches local skill — both produce the same lean CFF deterministically. CITATION.cff goes from 155 lines to 28 lines, focused on the package's own metadata. R dep info already lives in DESCRIPTION's Imports/Suggests where it belongs.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: NewGraphEnvironment

.github/workflows/update-citation-cff.yaml

@@ -25,7 +25,7 @@ jobs:
           packages: cffr
 
       - name: Update CITATION.cff
-        run: Rscript -e 'cffr::cff_write()'
+        run: Rscript -e 'x <- cffr::cff_create(); x$references <- NULL; cffr::cff_write(x = x)'
 
       - name: Commit if changed
         run: |

CITATION.cff

@@ -25,131 +25,4 @@ contact:
   given-names: Allan
   email: al@newgraphenvironment.com
   orcid: https://orcid.org/0000-0002-3495-2128
-references:
-- type: software
-  title: 'R: A Language and Environment for Statistical Computing'
-  notes: Depends
-  url: https://www.R-project.org/
-  authors:
-  - name: R Core Team
-  institution:
-    name: 'R Foundation for Statistical Computing (ROR: <https://ror.org/05qewa988>)'
-    address: Vienna, Austria
-  year: '2026'
-  doi: 10.32614/R.manuals
-  version: '>= 4.1'
-- type: software
-  title: cli
-  abstract: 'cli: Helpers for Developing Command Line Interfaces'
-  notes: Imports
-  url: https://cli.r-lib.org
-  repository: https://CRAN.R-project.org/package=cli
-  authors:
-  - family-names: Csárdi
-    given-names: Gábor
-    email: gabor@posit.co
-  year: '2026'
-  doi: 10.32614/CRAN.package.cli
-- type: software
-  title: rappdirs
-  abstract: 'rappdirs: Application Directories: Determine Where to Save Data, Caches,
-    and Logs'
-  notes: Imports
-  url: https://rappdirs.r-lib.org
-  repository: https://CRAN.R-project.org/package=rappdirs
-  authors:
-  - family-names: Ratnakumar
-    given-names: Sridhar
-  - family-names: Mick
-    given-names: Trent
-  - family-names: Davis
-    given-names: Trevor
-    orcid: https://orcid.org/0000-0001-6341-4639
-  year: '2026'
-  doi: 10.32614/CRAN.package.rappdirs
-- type: software
-  title: rlang
-  abstract: 'rlang: Functions for Base Types and Core R and ''Tidyverse'' Features'
-  notes: Imports
-  url: https://rlang.r-lib.org
-  repository: https://CRAN.R-project.org/package=rlang
-  authors:
-  - family-names: Henry
-    given-names: Lionel
-    email: lionel@posit.co
-  - family-names: Wickham
-    given-names: Hadley
-    email: hadley@posit.co
-  year: '2026'
-  doi: 10.32614/CRAN.package.rlang
-- type: software
-  title: knitr
-  abstract: 'knitr: A General-Purpose Package for Dynamic Report Generation in R'
-  notes: Suggests
-  url: https://yihui.org/knitr/
-  repository: https://CRAN.R-project.org/package=knitr
-  authors:
-  - family-names: Xie
-    given-names: Yihui
-    email: xie@yihui.name
-    orcid: https://orcid.org/0000-0003-0645-5666
-  year: '2026'
-  doi: 10.32614/CRAN.package.knitr
-- type: software
-  title: rmarkdown
-  abstract: 'rmarkdown: Dynamic Documents for R'
-  notes: Suggests
-  url: https://pkgs.rstudio.com/rmarkdown/
-  repository: https://CRAN.R-project.org/package=rmarkdown
-  authors:
-  - family-names: Allaire
-    given-names: JJ
-    email: jj@posit.co
-  - family-names: Xie
-    given-names: Yihui
-    email: xie@yihui.name
-    orcid: https://orcid.org/0000-0003-0645-5666
-  - family-names: Dervieux
-    given-names: Christophe
-    email: cderv@posit.co
-    orcid: https://orcid.org/0000-0003-4474-2498
-  - family-names: McPherson
-    given-names: Jonathan
-    email: jonathan@posit.co
-  - family-names: Luraschi
-    given-names: Javier
-  - family-names: Ushey
-    given-names: Kevin
-    email: kevin@posit.co
-  - family-names: Atkins
-    given-names: Aron
-    email: aron@posit.co
-  - family-names: Wickham
-    given-names: Hadley
-    email: hadley@posit.co
-  - family-names: Cheng
-    given-names: Joe
-    email: joe@posit.co
-  - family-names: Chang
-    given-names: Winston
-    email: winston@posit.co
-  - family-names: Iannone
-    given-names: Richard
-    email: rich@posit.co
-    orcid: https://orcid.org/0000-0003-3925-190X
-  year: '2026'
-  doi: 10.32614/CRAN.package.rmarkdown
-- type: software
-  title: testthat
-  abstract: 'testthat: Unit Testing for R'
-  notes: Suggests
-  url: https://testthat.r-lib.org
-  repository: https://CRAN.R-project.org/package=testthat
-  authors:
-  - family-names: Wickham
-    given-names: Hadley
-    email: hadley@posit.co
-  year: '2026'
-  doi: 10.32614/CRAN.package.testthat
-  version: '>= 3.0.0'