feat(breadcrumb): implement BreadcrumbList structure and validation for SEO compliance

app/clinics/page.js

@@ -5,6 +5,7 @@ import Layout from "@/components/layout/StLayout";
 import { getStateInfo } from "@/lib/getStateInfo";
 import { buildClinicParams } from "@/helper";
 import { listingRobots } from "@/lib/listingRobots";
+import { getRequestOrigin } from "@/lib/getCanonicalUrl";
 
 export async function generateMetadata({ searchParams }) {
   const awaitedParams = await searchParams;
@@ -68,12 +69,16 @@ export default async function Clinics({ searchParams }) {
     if (isNextRedirectError(err)) throw err;
   }
 
+  // origin برای BreadcrumbList لازم است: گوگل در itemListElement آدرس مطلق می‌خواهد.
+  const origin = await getRequestOrigin();
+
   return (
     <Layout name="/clinics">
       <ClinicsPage
         clinics={clinics}
         matchedCity={matchedCity}
         matchedState={matchedState}
+        origin={origin}
       />
     </Layout>
   );