Small fixes for bSDD, Scope, and printing

We’ve made a few updates to smooth out how bSDD-linked properties, Scope lists, and document exports behave.

This update includes:

Improved handling of bSDD-linked properties for customer classifications, where expected properties were not always appearing.
A fix for empty table of contents exports, so the table of contents is now hidden when there are no valid-numbered items to show.
A fix for missing information requirement chevrons in Scope lists, where expand/collapse controls could fail to appear until a task was opened first.
A fix for a printing error caused by empty groups, where printing could fail if a group had no child items.

Overall, these changes make day-to-day use a bit smoother across project structure, information requirements, and exports.