fix(ui): add MarkdownContent component, fix deprecated meta tag, bump v0.9.2

- Add missing MarkdownContent component (ReactMarkdown + remarkGfm wrapper)
- Replace deprecated apple-mobile-web-app-capable with mobile-web-app-capable
- Bump version to 0.9.2

Assisted-by: GLM-5.1 via Crush <crush@charm.land>

web/index.html

@@ -5,9 +5,9 @@
   <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
   <meta name="theme-color" content="#0A0A0C" />
   <meta name="description" content="Muyue - AI-powered development environment" />
-  <meta name="apple-mobile-web-app-capable" content="yes" />
-  <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
-  <meta name="apple-mobile-web-app-title" content="Muyue" />
+  <meta name="mobile-web-app-capable" content="yes" />
+  <meta name="mobile-web-app-status-bar-style" content="black-translucent" />
+  <meta name="mobile-web-app-title" content="Muyue" />
   <link rel="manifest" href="/manifest.json" />
   <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32.png" />
   <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16.png" />

web/src/components/Studio.jsx

@@ -277,6 +277,17 @@ function CodeBlockWithCopy({ part, index, copiedIdx, setCopiedIdx }) {
   )
 }
 
+function MarkdownContent({ content, raw }) {
+  if (raw) {
+    return <pre className="feed-content" style={{ whiteSpace: 'pre-wrap', fontFamily: 'var(--font-mono)', fontSize: '0.9em' }}>{content}</pre>
+  }
+  return (
+    <div className="feed-content">
+      <ReactMarkdown remarkPlugins={[remarkGfm]}>{content}</ReactMarkdown>
+    </div>
+  )
+}
+
 function FeedItem({ msg, activeAgents, onModeChange }) {
   const isUser = msg.role === 'user'
   const isSystem = msg.role === 'system'