Add ACE-Step music generation to the studio and library.

Co-authored-by: Cursor <cursoragent@cursor.com>

pages/index.vue

@@ -10,7 +10,7 @@
     <main class="mx-auto grid min-w-0 max-w-7xl gap-6 px-4 py-6 sm:px-6 lg:grid-cols-[minmax(0,1fr)_minmax(0,1fr)] lg:items-stretch">
       <section id="studio-input" class="glass min-w-0 max-w-full space-y-5 rounded-3xl p-5 sm:p-6">
         <div>
-          <div class="mb-4 grid grid-cols-2 gap-3">
+          <div class="mb-4 grid grid-cols-3 gap-3">
             <button
               type="button"
               class="rounded-3xl border px-4 py-4 text-left transition"
@@ -39,6 +39,17 @@
               <span class="mt-3 block font-display text-lg font-bold text-zinc-100">Image</span>
               <span class="mt-0.5 block text-xs text-zinc-500">Flux · Krea</span>
             </button>
+            <NuxtLink
+              to="/music"
+              class="rounded-3xl border border-white/10 px-4 py-4 text-left text-zinc-400 transition hover:border-white/20 hover:text-zinc-200"
+            >
+              <svg class="h-10 w-10" viewBox="0 0 40 40" fill="none" aria-hidden="true">
+                <circle cx="20" cy="20" r="12" stroke="currentColor" stroke-width="2" />
+                <path d="M18 14v12l10-4V12l-10 2Z" stroke="currentColor" stroke-width="2" stroke-linejoin="round" />
+              </svg>
+              <span class="mt-3 block font-display text-lg font-bold text-zinc-100">Music</span>
+              <span class="mt-0.5 block text-xs text-zinc-500">ACE-Step · vocals</span>
+            </NuxtLink>
           </div>
           <h2 class="font-display text-2xl font-bold">Input</h2>
           <p class="text-sm text-zinc-400">{{ studioMode === 'editv2'