Browse library by Author with book counts

As a user with a large library (2,000+ books imported from Calibre), I'd like a dedicated Authors view that: 1. Lists all authors in my collection alphabetically 2. Shows the number of books per author 3. Lets me tap an author to see all their books This is a standard feature in e-book managers like Marvin and mirrors how a physical library organizes bookshelves. Currently BookShelves can sort by author and search by author, but there's no grouped author index view. Source: support email from user migrating from Marvin.