Add cookies handling to send-test-email route

shop/app/api/admin/send-test-email/route.ts

@@ -2,11 +2,29 @@
 import { NextResponse } from 'next/server';
 import { sendMail } from '@/utils/mail';
 import { createServerClient } from '@supabase/ssr';
-
+import { cookies } from 'next/headers';
 export async function POST(request: Request) {
+  const cookieStore = await cookies();
+
   const supabase = createServerClient(
     process.env.NEXT_PUBLIC_SUPABASE_URL ?? '',
-    process.env.SUPABASE_SERVICE_ROLE_KEY ?? ''
+    process.env.SUPABASE_SERVICE_ROLE_KEY ?? '',
+    {
+      cookies: {
+        getAll() {
+          return cookieStore.getAll()
+        },
+        setAll(cookiesToSet) {
+          try {
+            cookiesToSet.forEach(({ name, value, options }) =>
+              cookieStore.set(name, value, options)
+            )
+          } catch {
+            // Kann in einer API-Route ignoriert werden, wenn nur gelesen wird
+          }
+        },
+      },
+    }
   );
 
   // Verify admin rights – expecting a user with role "admin" in the "users" table