- Bibliography heading now accepts bold markers (## **BIBLIOGRAPHY**),
alternative names (Works Cited, References), and numbered sub-headings
within the section.
- Original heading text preserved in output instead of hardcoded
"## Bibliography".
- New find_blockquote_notes() parser for PDF-to-markdown footnote format
(> N text), wired into CLI as third fallback after pandoc and numbered.
- PDF junk filtered from bibliography entries: bare page numbers,
blockquote footnotes, download banners, CC license URLs, and short
running headers.