fix: update paddleocr call signature

app.py

@@ -171,7 +171,7 @@ def parse_fields(raw: str) -> Dict[str, Any]:
 
 def ocr_and_parse(image: Image.Image) -> Dict[str, Any]:
     np_img = np.array(image.convert("RGB"))
-    ocr_results = ocr_reader.ocr(np_img, cls=True)
+    ocr_results = ocr_reader.ocr(np_img)
 
     segments: List[Dict[str, Any]] = []
     lines: List[str] = []