fix(forms): Naprawa formularza multisplit i dodanie reCAPTCHA v3 do wszystkich formularzy

components/shop/MultisplitContactForm.tsx

@@ -2,6 +2,7 @@
 
 import { useState } from 'react';
 import { Check, Loader2 } from 'lucide-react';
+import { submitMultisplitForm } from '@/app/zapytanie-multisplit/actions';
 
 interface Props {
   productName: string;
@@ -38,20 +39,28 @@ export default function MultisplitContactForm({ productName, productSku }: Props
     setLoading(true);
     setError('');
     try {
-      const res = await fetch('/api/contact', {
-        method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify({
-          name: form.name,
-          phone: form.phone,
-          email: form.email,
-          city: form.city,
-          subject: `Zapytanie o multisplit: ${productName} (${productSku})`,
-          message: `Liczba pomieszczeń: ${form.rooms}\n\n${form.message}`,
-        }),
+      let recaptchaToken = '';
+      if (process.env.NEXT_PUBLIC_RECAPTCHA_SITE_KEY) {
+        recaptchaToken = await (window as any).grecaptcha.execute(
+          process.env.NEXT_PUBLIC_RECAPTCHA_SITE_KEY,
+          { action: 'submit' }
+        );
+      }
+
+      const res = await submitMultisplitForm({
+        name: form.name,
+        phone: form.phone,
+        email: form.email,
+        city: form.city,
+        rooms: form.rooms,
+        message: form.message,
+        consent: form.consent,
+        productName,
+        productSku,
+        recaptchaToken,
       });
-      if (res.ok) setSent(true);
-      else setError('Błąd wysyłki. Zadzwoń do nas bezpośrednio.');
+      if (res.success) setSent(true);
+      else setError(res.message || 'Błąd wysyłki. Zadzwoń do nas bezpośrednio.');
     } catch {
       setError('Błąd połączenia. Spróbuj ponownie.');
     }