feat: enhance media management with CRUD operations and runtime tracking in admin UI

frontend/index.html

@@ -39,7 +39,7 @@
       </div>
 
       <div class="p-4 bg-slate-900 border-t border-slate-800 text-xs text-slate-400 flex justify-between">
-        <div>Latency: ~25s • Synced for all viewers (per ADR-001)</div>
+        <div>Latency: ~25s • Synced</div>
         <div class="flex gap-6">
           <a href="#" onclick="switchRoom('main')" class="hover:text-white">Main Channel</a>
           <a href="#" onclick="switchRoom('chill')" class="hover:text-white">Chill Room</a>