Use per-page annotation spacing with inferred margin fallback

copienator/commands/splitting_int.py

@@ -23,6 +23,7 @@ from copienator import (
 )
 from copienator.filesystem import staged_directory
 from copienator.annotation_layout import fingerprint, metadata_path, save_parts
+from copienator.left_margin import margins_with_fallback
 
 SQUARE = 1000 // 38
 ANSWER_TOP_PADDING_POINTS = 4 * 72 / 25.4
@@ -133,7 +134,7 @@ def _render_split_outputs(
         provenance: defaultdict[str, list[dict]] = defaultdict(list)
         schema = read_json(input_pdf.parent.parent / 'Cutleft' / f'{input_pdf.stem}_schema.json', default={})
         analysis = schema.get('auto_margin') or {}
-        measurements = ({item['page']: item for item in analysis.get('pages', [])}
+        measurements = ({item['page']: item for item in margins_with_fallback(analysis.get('pages', []))}
                         if schema.get('source_sha256') == fingerprint(input_pdf) else {})
         with tempfile.TemporaryDirectory(prefix="copienator-split-") as temp_directory:
             temporary = Path(temp_directory)
@@ -206,13 +207,14 @@ def _render_split_outputs(
                         part_path,
                     )
                     parts_by_label[clean_label].append(part_path)
-                    edge = measurements.get(page_number + 1, {}).get('edge_mm')
+                    measurement = measurements.get(page_number + 1, {})
+                    edge = measurement.get('effective_edge_mm')
                     remaining = None if edge is None else max(0, edge - clip.x0 * 25.4 / 72)
                     provenance[clean_label].append({
                         'source': input_pdf.name, 'source_sha256': schema.get('source_sha256'),
                         'page': page_number + 1, 'crop_points': list(clip),
                         'margin_mm': remaining,
-                        'margin_status': ('unknown' if remaining is None else
+                        'margin_status': ('unknown' if measurement.get('edge_mm') is None else
                                           'low' if remaining < 20 else 'normal'),
                     })