Flag Unusual Objects for Review in AI Crop

This feature aims to enhance the AI Crop functionality by flagging unusual objects for review. The software will notify users when it detects potential issues with cropping, allowing for thorough verification.

For example, the system could flag images under the following conditions:

- When an object is detected that is not rectilinear.
- When a book image contains more than two pages.
- When the gutters of a book are oriented east-west.

Implementing this feature will help ensure that cropped images are accurate and meet user expectations, improving the overall quality of the output.