Update app.py

app.py

@@ -239,7 +239,11 @@ def download_pdf(url, output_path):
         return False
     except Exception as e:
         logger.error(f"An unexpected error occurred during download of {url}: {e}")
-        if os.path.exists(output_path): try: os.remove(output_path) except: pass
+        if os.path.exists(output_path): 
+            try: 
+                os.remove(output_path) 
+            except: 
+                pass
         return False
 
 # (Keep process_pdf_snapshot - it doesn't use AI)