feat: security audit, rate limiting, server-side pricing, html escaping and security headers

app/pompy-ciepla/page.tsx

@@ -1,4 +1,5 @@
 import { Metadata } from 'next';
+import { JsonLd } from '@/components/ui/JsonLd';
 import { HeroSection } from '@/components/sections/HeroSection';
 import { BenefitsGrid } from '@/components/sections/BenefitsGrid';
 import { HeatPumpTypes } from '@/components/sections/HeatPumpTypes';
@@ -70,7 +71,7 @@ export default function PompyCieplaPage() {
 
   return (
     <>
-      <script type="application/ld+json" dangerouslySetInnerHTML={{ __html: JSON.stringify(faqPompyJsonLd) }} />
+      <JsonLd data={faqPompyJsonLd} />
       <main>
       <HeroSection
         title="Pompy ciepła — niższe rachunki, niezależność, dofinansowanie"