feat: add prompt front matter structure, comment out generation notes block

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

layouts/posts/single.html

@@ -92,6 +92,39 @@
 </article>
 {{- end -}}
 
+{{- /* ── GENERATION NOTES (disabled) ─────────────────────────────
+{{- with .Params.prompt -}}
+<section class="gutter-x mb-20 md:mb-28">
+  <div class="max-w-5xl mx-auto">
+    <div class="flex items-center gap-5 mb-8">
+      <span class="badge badge-outline">Generation Notes</span>
+      <div class="flex-1 gradient-line"></div>
+    </div>
+    <div class="grid grid-cols-1 md:grid-cols-3 gap-px bg-zinc">
+      {{- with .scene -}}
+      <div class="bg-concrete p-6 md:p-8">
+        <p class="label text-fog mb-4">Scene</p>
+        <p class="font-body text-sm text-chalk leading-relaxed">{{ . }}</p>
+      </div>
+      {{- end -}}
+      {{- with .environment -}}
+      <div class="bg-concrete p-6 md:p-8">
+        <p class="label text-fog mb-4">Environment</p>
+        <p class="font-body text-sm text-chalk leading-relaxed">{{ . }}</p>
+      </div>
+      {{- end -}}
+      {{- with .style -}}
+      <div class="bg-concrete p-6 md:p-8">
+        <p class="label text-fog mb-4">Lighting & Style</p>
+        <p class="font-body text-sm text-chalk leading-relaxed">{{ . }}</p>
+      </div>
+      {{- end -}}
+    </div>
+  </div>
+</section>
+{{- end -}}
+*/ -}}
+
 <!-- ── GALLERY ───────────────────────────────────────────────── -->
 {{- $bundleImages := .Resources.Match "[0-9]*.png" -}}
 {{- $legacyItems  := slice -}}