chore(config): centralize feature settings

app/not-found.tsx

@@ -8,6 +8,7 @@ import { Spinner } from "@/components/ui/spinner";
 import Background from "@/public/background/404.png";
 import Profile from "@/public/404-image.jpg";
 import { Activity, Home } from "lucide-react";
+import { config } from "@/lib/config";
 
 const MESSAGES = [
   "Erika กินหน้านี้ไปแล้ว...",
@@ -54,7 +55,7 @@ export default function NotFound() {
               กลับหน้าแรก
             </Button>
           </Link>
-          <Link href="https://status.sudloh.com">
+          <Link href={config.site.statusUrl}>
             <Button variant="link" className="text-secondary-foreground">
               <Activity />
               สถานะเว็บไซต์