Tighten admin specials handling and remove obsolete curate button

app/admin/specials/[id]/page.tsx

@@ -36,11 +36,17 @@ export default function SpecialEditorPage() {
     }, [specialId]);
 
     const handleSaveStartTime = async (songId: number, startTime: number) => {
-        await fetch(`/api/specials/${specialId}/songs`, {
+        const res = await fetch(`/api/specials/${specialId}/songs`, {
             method: 'PUT',
             headers: { 'Content-Type': 'application/json' },
             body: JSON.stringify({ songId, startTime }),
         });
+
+        if (!res.ok) {
+            const errorText = await res.text().catch(() => res.statusText || 'Unknown error');
+            console.error('Error updating special song (admin):', res.status, errorText);
+            throw new Error(`Failed to save start time: ${errorText}`);
+        }
     };
 
     if (loading) {