fix: restore complete admin feature dependencies

src/app/admin/sounds/page.tsx

@@ -26,7 +26,7 @@ export default async function SoundsPage() {
         track: true,
       },
     }),
-    prisma.catalogItem.groupBy({
+    prisma.catalogItems.groupBy({
       by: ['songId'],
       where: { songId: { gt: 0 } },
       _count: { _all: true },
@@ -55,7 +55,8 @@ export default async function SoundsPage() {
   })
 
   // Normalize: ensure trailing slash so ${base}${code}.mp3 yields a valid URL.
-  const baseUrl = baseUrlSetting.endsWith('/') ? baseUrlSetting : `${baseUrlSetting}/`
+  const configuredBaseUrl = baseUrlSetting ?? '/sounds/'
+  const baseUrl = configuredBaseUrl.endsWith('/') ? configuredBaseUrl : `${configuredBaseUrl}/`
 
   return (
     <div className="space-y-6">