Add a 'Reference Pages' reading progress style that shows physical book
page numbers in the footer progress info:
- When the book carries a page list (EPUB3 nav page-list or EPUB2 NCX
pageList — foliate-js already parses both and resolves the current
pageItem on relocate; it was just never consumed), display the current
page label and use the highest numeric label as the total, so a
trailing roman-numeral index page can't corrupt the total (#672).
- When the book has none, a per-book 'Reference Page Count' input
appears; the reading fraction is mapped linearly onto the entered
count (#4542). The count is saved per book only and never propagates
to global view settings.
- Falls back to percentage display when neither source is available.
Verified with the sample books from #672: Caleb's Crossing (EPUB3
page-list, 419 pages) and Count Zero (EPUB2 NCX pageList/page-map,
346 pages — chapter 2 lands exactly on page 22 per its page-map), plus
a stripped no-pagelist copy for the manual-count path (175/350 at 50%).
Closes#672Closes#4542
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Huang Xin