Initial commit: Dcorya storefront on Meshkee Website API

Next.js/TypeScript/Tailwind rebuild of dcorya.com in Persian/RTL, wired to
the live Meshkee Website API for products, blog, comments, cart, and contact.

src/components/PageHeader.tsx

@@ -0,0 +1,27 @@
+export default function PageHeader({
+  title,
+  subtitle,
+  backgroundImage = "/images/page-header-bg.jpg",
+}: {
+  title: string;
+  subtitle: string;
+  backgroundImage?: string;
+}) {
+  return (
+    <section
+      className="relative flex h-56 items-center justify-center overflow-hidden bg-[#faf8f5] bg-cover bg-center sm:h-64"
+      style={{ backgroundImage: `url('${backgroundImage}')` }}
+    >
+      <div className="absolute inset-0 bg-white/40" />
+      <div className="relative z-10 text-center">
+        <h1 className="text-3xl font-bold text-neutral-700 sm:text-4xl">{title}</h1>
+        <p
+          className="mt-2 text-xs tracking-[0.3em] text-neutral-400"
+          style={{ fontFamily: "var(--font-montserrat)" }}
+        >
+          {subtitle}
+        </p>
+      </div>
+    </section>
+  );
+}