encoding issue

app.py

@@ -111,7 +111,7 @@ def detect_cards_and_sum(image, game):
             if box_area < 0.002 * img_area or box_area > 0.9 * img_area:
                 continue  # too small or too big to be a card
 
-            # aspect ratio (card ~ 1.4�1.8 between long/short edges)
+            # aspect ratio (card ~ 1.4-1.8 between long/short edges)
             long_side = max(rw, rh)
             short_side = min(rw, rh)
             ratio = long_side / short_side