A: dynamic knowledge-articles content goes through marked instead of raw v-html (escape-first, no new deps). B: plain-text fallback normalize (bracket headings, circled numbers to ordered list, blank lines, key-number bold, idempotent). C: detail-content styles for h2/h3/pre/blockquote/paragraph spacing. D: dialog width 700 to 860, content padding, in-dialog scroll. Task: project-20260924-knowledge-dialog-render-fullstack
