- Markdown.tsx never passed text as children to ReactMarkdown (valid JSX,
compiled clean, rendered nothing) — the 'thinking shows, text doesn't' bug
- toolResult entries (quiz/ask dispatch instructions for the LLM) leaked
into the transcript as visible text; now never rendered
- render smoke tests (renderToStaticMarkup, no DOM): pin markdown content,
KaTeX, button-based quiz options, ask answers not graded, toolResult and
[Quiz answer] hiding — negative-tested against the actual bugs
- React default import in all .tsx: tsx test runner uses classic JSX
transform (ignores tsconfig jsx option), Vite uses automatic runtime;
explicit import works under both
- katex css moved to main.tsx (tests can't import css)
- verified live in browser: all assistant messages render, ask card has no
grading marks, pending quiz re-arms on resume
