Fix PaddleOCR call (remove cls arg)

app.py

@@ -9,15 +9,15 @@ def run_ocr(img):
     if img is None:
         return "", 0.0
 
-    # img is PIL.Image -> convert to numpy array (RGB)
-    img_np = np.array(img)
+    img_np = np.array(img)  # PIL -> numpy (RGB)
 
-    result = ocr.ocr(img_np, cls=True)
+    # No cls arg here (handled by use_angle_cls=True above)
+    result = ocr.ocr(img_np)
 
     lines = []
     confs = []
 
-    # result format: [ [ [box], (text, conf) ], ... ]
+    # result is typically: [ [ [box], (text, conf) ], ... ]
     for block in result:
         for item in block:
             text, conf = item[1]