update OCR

src/inference.py

@@ -1306,6 +1306,6 @@ def run_pipeline(image_path, output_dir="outputs",
 if __name__ == "__main__":
     import sys
     img = sys.argv[1] if len(sys.argv) > 1 else "test.jpg"
-    backend = sys.argv[2] if len(sys.argv) > 2 else "paddle"
+    backend = sys.argv[2] if len(sys.argv) > 2 else "easyocr"
     result, _ = run_pipeline(img, ocr_backend=backend)
     print(json.dumps(result, ensure_ascii=False, indent=2))