Defuddle strips div containers with custom card/callout classes

I'm using Defuddle via the Obsidian Web Clipper to extract course notes from sites like dsa.chaicode.com. On these pages, key tips and mental models are wrapped in <div class="sketch-border"> card containers rather than standard <blockquote> tags.

During extraction, Defuddle strips these div containers and flattens their text into regular paragraphs. This loses the card boundary and structure before the markdown conversion happens.

It would be really helpful if Defuddle preserved card-like container divs (or had a way to preserve divs matching specific border/card classes) so that down-stream clippers can format them properly as callout blocks.