- ocr_render.py: extend consumed frontmatter roles skip from page 1 to pages <= 2,
preventing paper_title appearing twice on pre-proof papers
- ocr_document.py: add image/media block promotion in backmatter zone normalization
so raw image blocks become media_asset instead of backmatter_body; this fixes
build_figure_inventory producing 0 matched_figures. Also check seed_role in
_sanitize_reference_zone_boundary since it runs before role resolution
- scripts/dev/ocr_rebuild_paper.py: single-paper rebuild + block_trace regeneration
entry point (will be wired into CLI later)
- tests: boundary protection and completeness check tests
- DW trace regenerated with correct role distribution
In post_reference_backmatter_zone, blocks with role=reference_item are
outside the verified reference range. The structural gate cannot verify
them and holds them to unknown_structural. Fix: the zone normalization
now converts ALL non-heading blocks (including reference_item) to
backmatter_body, which the gate accepts via _SAFE_PRESERVED_ROLES.
DW expectations: 18 FAIL -> 9 FAIL (fixed 8 biography blocks + 1 equal
contribution note). Remaining 9 are pre-existing known bugs.
- Inline figure mention: _looks_like_inline_figure_mention() detects body prose
such as 'Figure X shows/illustrates/demonstrates' and 'as shown in Figure X'
to prevent noise in figure caption pipeline. Excludes Frontiers FIGURE N | format.
- Layout audit: added safety net so pages with layout confidence < 0.7 never
produce ERROR-level anomalies (only INFO). Check 2 (insert_body_overlap) also
gated by layout confidence.
- DWQQK2YB matched figure count dropped 6->3 as inline mentions correctly excluded;
M36WA39N Frontiers captions unaffected
- 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
- Add RegionPrepass data model for frontmatter/structured_insert/body classification
- Add PDF visual container detection (filled rects) for sidebar detection
- Add Box N and keyword-based sidebar anchor detection
- Add column-aware block expansion for mixed sidebar clusters
- Add _container_text from PDF text blocks for cross-column truncation
- Add degraded-mode heading level normalization with font size clustering
- Merge adjacent structured_insert blocks into single callout
- Fix metadata enrichment from Literature-hub note frontmatter for old papers
- Fix heading hierarchy using span font-size clusters when available
- Add real-paper regression harness (TSCKAVIS, CAQNW9Q2, A8E7SRVS, K7R8PEKW)
- Add body retention, heading, metadata, and callout acceptance tests
- 219 passed, 4 control guards passed
