Assistant answers render as markdown

react-markdown, lazy-loaded with the first answer (37 kB gzip chunk, main
bundle unchanged). No raw HTML, images dropped, links open in a new tab.
The system prompt asks for lists, inline code and fenced code blocks.

docs/code/agents.md

@@ -54,8 +54,9 @@ A superuser configures an OpenAI-compatible provider under
 the dashboard's Assistant entry for signed-in users.
 
 The assistant uses the same tools with your own permissions. Draft edits
-appear in the editor, and each answer includes a tool trace. Conversations
-are stored per user on the instance; the bin button clears yours.
+appear in the editor, and each answer renders as markdown with a tool trace.
+Conversations are stored per user on the instance; the bin button clears
+yours.
 `MCP_ENABLED` is only needed for external clients, so the built-in assistant
 works without it.