Update routing in next.config.ts to redirect "/tercih-robotu" to the hero form, add simple-icons dependency in package.json, and enhance database indexing for improved query performance. Remove unused SVG files and update metadata across various pages for better SEO and clarity.

src/lib/seo.tsx

@@ -0,0 +1,124 @@
+import { URUNLER } from "./credits";
+
+/**
+ * Kanonik site adresi. NEXT_PUBLIC_APP_URL bilinçli olarak KULLANILMAZ —
+ * o değişken ödeme callback akışına ait ve .env.local'de localhost'a işaret
+ * ediyor. .dockerignore .env* dosyalarını dışladığı için prod build burada
+ * deterministik olarak kolaytercih.com'a düşer.
+ */
+export const SITE_URL =
+  process.env.NEXT_PUBLIC_SITE_URL ??
+  (process.env.NODE_ENV === "production"
+    ? "https://kolaytercih.com"
+    : "http://localhost:3000");
+
+export const SITE_NAME = "KolayTercih";
+
+type JsonLdData = Record<string, unknown>;
+
+export function organizationJsonLd(): JsonLdData {
+  return {
+    "@context": "https://schema.org",
+    "@type": "Organization",
+    name: SITE_NAME,
+    url: SITE_URL,
+    logo: `${SITE_URL}/kolay-tercih-mark.svg`,
+    contactPoint: {
+      "@type": "ContactPoint",
+      email: "destek@kolaytercih.com",
+      contactType: "customer support",
+      availableLanguage: "Turkish",
+    },
+  };
+}
+
+export function webSiteJsonLd(): JsonLdData {
+  return {
+    "@context": "https://schema.org",
+    "@type": "WebSite",
+    name: SITE_NAME,
+    url: SITE_URL,
+    inLanguage: "tr",
+  };
+}
+
+export function softwareApplicationJsonLd(): JsonLdData {
+  return {
+    "@context": "https://schema.org",
+    "@type": "SoftwareApplication",
+    name: SITE_NAME,
+    applicationCategory: "EducationalApplication",
+    operatingSystem: "Web",
+    url: SITE_URL,
+    inLanguage: "tr",
+    offers: {
+      "@type": "Offer",
+      price: (URUNLER.paket.amountKurus / 100).toFixed(0),
+      priceCurrency: "TRY",
+      description: URUNLER.paket.label,
+    },
+  };
+}
+
+export function faqPageJsonLd(
+  faqs: readonly { question: string; answer: string }[],
+): JsonLdData {
+  return {
+    "@context": "https://schema.org",
+    "@type": "FAQPage",
+    mainEntity: faqs.map((f) => ({
+      "@type": "Question",
+      name: f.question,
+      acceptedAnswer: { "@type": "Answer", text: f.answer },
+    })),
+  };
+}
+
+export function breadcrumbJsonLd(
+  items: readonly { name: string; path: string }[],
+): JsonLdData {
+  return {
+    "@context": "https://schema.org",
+    "@type": "BreadcrumbList",
+    itemListElement: items.map((item, i) => ({
+      "@type": "ListItem",
+      position: i + 1,
+      name: item.name,
+      item: `${SITE_URL}${item.path}`,
+    })),
+  };
+}
+
+export function articleJsonLd(opts: {
+  title: string;
+  description: string;
+  path: string;
+  datePublished: string;
+}): JsonLdData {
+  return {
+    "@context": "https://schema.org",
+    "@type": "Article",
+    headline: opts.title,
+    description: opts.description,
+    url: `${SITE_URL}${opts.path}`,
+    datePublished: opts.datePublished,
+    inLanguage: "tr",
+    publisher: {
+      "@type": "Organization",
+      name: SITE_NAME,
+      url: SITE_URL,
+    },
+  };
+}
+
+/** JSON-LD'yi güvenli gömer: `<` kaçışı script-injection'ı engeller. */
+export function JsonLd({ data }: { data: JsonLdData }) {
+  return (
+    <script
+      type="application/ld+json"
+      dangerouslySetInnerHTML={{
+        __html: JSON.stringify(data).replace(/</g, "\\u003c"),
+      }}
+    />
+  );
+}