[LocalMode] Streaming markdown renderer for assistant output: shows a cursor while streaming, tolerates partial/unterminated markdown without layout breakage, supports an optional typewriter reveal, and routes LaTeX/Mermaid blocks to swappable renderers gated behind props (declare katex/mermaid if used).
pnpm dlx shadcn@latest add "https://registry.directory/r/localmode-ai/ui/conversation/response.json"