Update app.py

use updated page separator

app.py

@@ -299,7 +299,7 @@ def run_ocr(uploaded_file):
             if parts:
                 all_pages.append("\n\n".join(parts))
 
-        return "\n\n---\n\n".join(all_pages) if all_pages else "(No content)"
+        return "\n\n---page-separator---\n\n".join(all_pages) if all_pages else "(No content)"
     except Exception as e:
         import traceback
         log.exception("run_ocr failed: %s", e)