- Spec §4.1: running headers carry titles only (recto: chapter/section
title; verso: author name + book title); page-number fields removed
from headers.
- Spec §4.2: page numbers centered in the footer on both verso and recto
pages; front-matter display pages (copyright, dedication, epigraph,
TOC) show their Roman numeral on the opening page too.
- Spec §2.2: lowercase Roman numbering visible from the copyright page
through the front matter; Chapter 1 restarts at Arabic 1.
- Chapter/back-matter sections keep running matter on body pages; only
the first page of each chapter is suppressed (spec §4.3).
- Drop titlePg on single-page front-matter display sections so footer
page numbers render in LibreOffice and Word alike.
- Preserve <<<>>> scene-break cues (centered, 12pt before/after) and
first-word-only capitalization of chapter openers.
- UI: remove the obsolete "Page Numbers" selector; footer_mode is
accepted-but-ignored for backward compatibility.
- Tests updated to the new spec behavior (51 pass).
