JRS R1 manuscript source

Build fullcp_JRS_R1.tex from this directory with:
  latexmk -pdf -interaction=nonstopmode -halt-on-error fullcp_JRS_R1.tex

Alternatively run pdflatex, bibtex, pdflatex, pdflatex until references settle.
Tested build: pdfTeX 1.40.28 (TeX Live 2025), latexmk 4.87.
Output: fullcp_JRS_R1.pdf (30 pages).

The figures and references.bib are included. Only current Figure 4 uses the
new R1 accessibility presentation layer; Figures 1--3 are unchanged.
Final abstract: 227/250 portal-style words.
Scientific statements/proofs, bibliography and AI disclosures are frozen.

In the reproducibility bundle, original source/PDF/figures are preserved
under provenance/V3_1a_manuscript_source/. Build the R1 filename above.
