- Frontiers figure title: _FRONTIERS_FIGURE_TITLE_PATTERN seeds FIGURE N | Title
as figure_caption even when raw_label=text (Frontiers/journals style)
- Panel label exclusion: _PANEL_LABEL_PATTERN sends A/B/C/(D)/E. to
figure_inner_text before they enter the caption/matching pipeline
- Page 1 heading override: _explicit_scholarly_heading_role() detects Roman
numeral (I. INTRODUCTION) and alpha (A. Materials) headings with y_top
guard to protect frontmatter titles
- Layout audit severity: _run_layout_audit() separates anomalies into
info/warning/error; full-width headings exempted; health only degraded
when error_count > 0
- first_author fallback: _enrich_meta_from_paper_note() falls back to
first_author when authors field is missing; _normalize_author_name()
strips {superscript} markers for fuzzy matching
