feat(agenda): add weekly agenda experience

app/[locale]/blog/[slug]/page.tsx

@@ -1,8 +1,9 @@
-import { notFound } from "next/navigation";
+import { notFound, permanentRedirect } from "next/navigation";
 import { Metadata } from "next";
 import { BlogDetailContent } from "@/components/blog-detail-content";
 import { ArticleJsonLd } from "@/components/json-ld";
 import { getBlogDetailBySlug } from "@/data/blog-detail";
+import { isNewsletterCategory } from "@/data/blog";
 
 const SITE_URL = process.env.NEXT_PUBLIC_SITE_URL || "https://poyrazavsever.com";
 
@@ -58,6 +59,11 @@ export default async function BlogDetailPage({ params }: BlogDetailPageProps) {
     notFound();
   }
 
+  if (isNewsletterCategory(post.category)) {
+    const localePrefix = locale === "tr" ? "" : `/${locale}`;
+    permanentRedirect(`${localePrefix}/agenda/${post.slug}`);
+  }
+
   return (
     <>
       <ArticleJsonLd