463a058f56
- Quote blocks now join consecutive quote lines into one paragraph with
soft breaks and wrap continuation under quote prefix.
- Empty quote lines ('>' / '> ') act as quote-paragraph separators.
- Nested quote starts ('> > ...') are not merged into the parent text and
stay separate rows.
- Keeps existing inline emphasis handling inside quote content.
Co-Authored-By: Oz <oz-agent@warp.dev>