- Strip leading digit prefix (e.g. "6Chapter 6 → Chapter 6") and
content after first newline (scraped date artifacts) from chapter titles
- Add "CHAPTER N" eyebrow label above the h1 for clear hierarchy
- Show date_label as small muted text in the meta row
- Remove double-border / mt-6 gap from standard AudioPlayer inside the
chapter page's collapsible panel (was rendering two nested boxes)
- Remove redundant "Audio Narration" label (toggle already says "Listen")
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>