fix: cast center to float

app/util/passport_photo_engine/passport_cropper.py

@@ -55,7 +55,7 @@ class PassportCropper:
 
         # 6. Create the Rotation Matrix
         # We rotate around the calculated center
-        M = cv2.getRotationMatrix2D((center_x, center_y), -angle_deg, 1.0)
+        M = cv2.getRotationMatrix2D((float(center_x), float(center_y)), -angle_deg, 1.0)
         
         # 7. Modify the Matrix for Translation
         # This is the math magic: We tell OpenCV to move the (center_x, center_y)