Returns the title of the first selected chapter as a STRING so it can
be wired directly into a Save Audio node's filename field.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
get_text(separator=' ') collapsed all paragraphs into one line.
Now inserts \n\n at block-level element boundaries (p, h1-h6, div,
li, br, tr) before extraction, then normalises whitespace.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>