fix(cli): handle bold and italic formatting in markdown lists

- Add handlers for strong and emphasis nodes in markdown renderer
- Remove debug logging from message block rendering

Author: brandonkachen

cli/src/utils/markdown-renderer.tsx

@@ -7,12 +7,14 @@ import type {
   Blockquote,
   Code,
   Content,
+  Emphasis,
   Heading,
   InlineCode,
   List,
   ListItem,
   Paragraph,
   Root,
+  Strong,
   Text,
 } from 'mdast'
 
@@ -96,6 +98,12 @@ function nodeToPlainText(node: Content | Root): string {
     case 'inlineCode':
       return `\`${(node as InlineCode).value}\``
 
+    case 'strong':
+      return (node as Strong).children.map(nodeToPlainText).join('')
+
+    case 'emphasis':
+      return (node as Emphasis).children.map(nodeToPlainText).join('')
+
     case 'heading': {
       const heading = node as Heading
       const prefix = '#'.repeat(Math.max(1, Math.min(heading.depth, 6)))