Review-gate NIT-1: the download helper still carried pre-fix text.
- Bobenko-Mercat-Schmies: updated to full title "Conformal Structures
and Period Matrices...", correct editors + chapter DOI
- Footer rewritten from open-TODO ("zu korrigieren / muss angepasst
werden") to past-tense record of the applied fixes
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>