Add Turnstile protection to user actions

app/(frontend)/termin-buchen/page.tsx

@@ -17,6 +17,7 @@ import { siteConfig } from "@/lib/site";
 export const dynamic = "force-dynamic";
 
 const FALLBACK_DESCRIPTION = "Kennenlernen & Termine vereinbaren.";
+const turnstileSiteKey = process.env.TURNSTILE_SITE_KEY ?? "";
 
 export async function generateMetadata(): Promise<Metadata> {
   const [booking, seoSettings] = await Promise.all([getBookingGlobal(), getSEOSettingsGlobal()]);
@@ -122,6 +123,7 @@ export default async function TerminBuchenPage() {
           />
           <div className="mt-10">
             <ContactForm
+              siteKey={turnstileSiteKey}
               subjectPrefix="Terminanfrage über anouma.org"
               type="appointment"
               submitLabel="Terminanfrage senden"