Identify a philosophy book and resolve its file path in the sample Calibre library

Use the fixture library at ./sample-library/.

Goal:

• identify which book in the fixture library is primarily about philosophy
• report the title and author
• resolve and return a concrete file path for the preferred readable format (EPUB if available)
• briefly explain which script(s) you used

Expected book:

• The Problems of Philosophy by Bertrand Russell

Constraints:

• use the local ebook-library scripts
• use metadata and/or content search to confirm the correct title
• use resolve_book.py to get the final path rather than inventing the path manually