Shelf's tags don't follow the hierarchy ...

[DoctorRetromaker]

Describe the Bug

Shelf's tags don't follow the hierarchy schema, just dead at shelf level .... is this a bug or a intentional feature?

Steps to Reproduce

1. Set any tag at shelf level
2. open a book inside the shelf
3. check with any developer tool the book body element; there isn't any shelf-tag-name- class ....

Expected Behaviour

Since the shelves are a part of the hierarchy established by Bookstack, it would be desirable to have a behavior of the tags similar to that observed in the other elements.

And, how about to add «application level» tags?

Screenshots or Additional Context

No response

Browser Details

Brave 1.85.120 (Chromium 143.0)

Exact BookStack Version

25.12..1