Agent replies only styled paragraphs, lists and code, so tables, headings, quotes, rules, images and task lists fell back to browser defaults: a 26px h1, a quote indented 40px, table columns squeezed to a few letters by overflow-wrap. They now get chat-sized styles from tokens; wide tables scroll sideways.
Closes#1273
Co-authored-by: ntbang0901 <121003585+ntbang0901@users.noreply.github.com>