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

app/klimatyzacja/wroclaw/[dzielnica]/page.tsx

@@ -1,4 +1,5 @@
 import { Metadata } from 'next';
+import { JsonLd } from '@/components/ui/JsonLd';
 import { notFound } from 'next/navigation';
 import Link from 'next/link';
 import { MapPin, Clock, Phone, ArrowRight } from 'lucide-react';
@@ -67,10 +68,7 @@ export default async function DzielnicaPage({ params }: Props) {
 
   return (
     <main>
-      <script
-        type="application/ld+json"
-        dangerouslySetInnerHTML={{ __html: JSON.stringify(jsonLd) }}
-      />
+      <JsonLd data={jsonLd} />
 
       <HeroSection
         eyebrow={`Klimatyzacja ${district.name} · Wrocław · F-Gaz`}