Enatega (Admin+Customer+Restaurant) : Reason for Order Cancellations feature

A clear and concise description of what you want to happen.

When the customer rejects the order, a pop-up should open and allow customer to write the reason for order cancellation OR display some common reasons of order cancellation from which user can select accordingly.

No files or tests are named. Start by locating the customer order-rejection flow and its cancellation UI, then inspect how cancellation state is shared with admin and restaurant views. Done means customers can enter or select a cancellation reason and the resulting reason is handled consistently across the affected roles.

Written by the indexing model from the issue text.