Fix admin permissions bounce, prefixes APIs, and Italian UI leftovers.

Gate permissions on ACL manage + resolve super-admin from live user ranks, restore prefixes API routes, and anglicize hardcoded admin copy with nav i18n.

Co-authored-by: Cursor <[email protected]>

src/app/admin/sounds/page.tsx

@@ -70,11 +70,11 @@ export default async function SoundsPage() {
 			<div>
 				<h1 className="text-3xl font-bold tracking-tight">Song Disks</h1>
 				<p className="text-muted-foreground">
-					Carica e gestisci i file MP3 dei song disk riprodotti dai jukebox
-					in-game. I file sono serviti da <code>{baseUrl}</code> (configurabile
-					in{" "}
-					<a href="/admin/settings/cms" className="underline">
-						Impostazioni &gt; CMS
+					Upload and manage MP3 files for song disks played by in-game
+					jukeboxes. Files are served from <code>{baseUrl}</code>{" "}
+					(configurable in{" "}
+					<a href="/admin/settings" className="underline">
+						Settings
 					</a>
 					).
 				</p>