Fix bundle analyzer source display: override prose styling + add syntax highlighting

- Add not-prose class to escape Tailwind typography dark pre/code backgrounds
- Use (highlight source "lisp") for syntax-highlighted component source
- Add missing bg-blue-500 bg-amber-500 to @css annotation

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

sx/sx/analyzer.sx

@@ -1,7 +1,7 @@
 ;; Bundle analyzer — live demonstration of dependency analysis + IO detection.
 ;; Shows per-page component bundles vs total, visualizing payload savings.
 ;; Drill down into each bundle to see component tree; expand to see SX source.
-;; @css bg-green-100 text-green-800 bg-violet-600 bg-stone-200 text-violet-600 text-stone-600 text-green-600 rounded-full h-2.5 grid-cols-3 bg-blue-100 text-blue-800 bg-amber-100 text-amber-800 grid-cols-4 marker:text-stone-400 bg-blue-50 bg-amber-50 text-blue-700 text-amber-700 border-blue-200 border-amber-200
+;; @css bg-green-100 text-green-800 bg-violet-600 bg-stone-200 text-violet-600 text-stone-600 text-green-600 rounded-full h-2.5 grid-cols-3 bg-blue-100 text-blue-800 bg-amber-100 text-amber-800 grid-cols-4 marker:text-stone-400 bg-blue-50 bg-amber-50 text-blue-700 text-amber-700 border-blue-200 border-amber-200 bg-blue-500 bg-amber-500
 
 (defcomp ~bundle-analyzer-content (&key pages total-components total-macros
                                         pure-count io-count)
@@ -115,6 +115,6 @@
               (str (len deps) " deps"))))))
 
     ;; SX source (shown when component expanded)
-    (div :class "border-t border-stone-200 p-3 bg-white rounded-b"
-      (pre :class "text-xs font-mono text-stone-900 whitespace-pre-wrap overflow-x-auto leading-relaxed"
-        source))))
+    (div :class "not-prose border-t border-stone-200 p-3 bg-stone-100 rounded-b"
+      (pre :class "text-xs leading-relaxed whitespace-pre-wrap overflow-x-auto"
+        (code (highlight source "lisp"))))))