Use per-page annotation spacing with inferred margin fallback

copienator/commands/cutleft.py

@@ -428,6 +428,11 @@ class ImageReviewer:
                                for group in analysis['groups'])
             margin_info = (f"Auto margin: {offsets} mm from left"
                            + (' | Check uncertain pages' if needs_review else '') + '\n')
+            for page in analysis.get('pages', []):
+                if page.get('status') == 'unknown':
+                    value = page.get('effective_edge_mm')
+                    fallback = f" (copy average: {value:.1f} mm)" if value is not None else ''
+                    margin_info += f"Page {page['page']}: unknown margin{fallback}\n"
             if analysis.get('no_margin_from_page') is not None:
                 margin_info += f"No margin from page {analysis['no_margin_from_page']} onwards\n"
         self.label_info.configure(