fix: resolve critical bugs and improve admin panel reliability

- Fix missing await in pets API route causing empty responses
- Fix updateSetting to use upsert pattern instead of update-only
- Create missing /api/admin/sounds/upload route (upload was broken)
- Wire bulk delete actions in catalog table
- Replace native confirm() with useConfirmDialog() across rooms and clone pages
- Add error logging to silent catch blocks in radio actions and audit route
- Add graceful degradation to devops health endpoint
- Add cache eviction to clone icon route to prevent memory leak
- Internationalize hardcoded Italian strings to English
- Remove placeholder created_at fields from prefix API responses
- Remove dead code and fix type errors in translations and import pages
- Standardize PERMS import path in analytics export route

src/app/api/admin/prefixes/blacklist/route.ts

@@ -14,9 +14,7 @@ export const GET = withAdmin({ permission: PERMS.PREFIXES_VIEW }, async () => {
 		sql`SELECT id, word FROM custom_prefix_blacklist ORDER BY word ASC`,
 	)) as unknown as [BlacklistWord[], unknown];
 
-	return apiOk({
-		words: words.map((w) => ({ ...w, created_at: "" })),
-	});
+	return apiOk({ words });
 });
 
 export const POST = withAdmin(

src/app/api/admin/prefixes/route.ts

@@ -52,7 +52,6 @@ export const GET = withAdmin(
 				icon: p.icon || "",
 				effect: p.effect || "",
 				active: Boolean(p.active),
-				created_at: "",
 			})),
 			total,
 			page,