Link annotations extracted but not rendered in markdown output

[hoffrocket]

The PDF parser already extracts link annotations from pages (/Annots with /Subtype /Link) and creates ItemType::Link items with the target URL.

However, these items are separated out during markdown conversion and never used — the visible text under a link annotation renders as plain text with no [text](url) markup.

For example, a PDF with "Visit our site" hyperlinked to https://example.com currently outputs: Visit our site

Expected: [Visit our site](https://example.com)

The MarkdownOptions.include_links flag exists and defaults to true, but has no effect since the link items are discarded before rendering.