feat(web): complete MVP0 public layout, banner, and SEO baseline

apps/web/src/app/[locale]/page.tsx

@@ -2,20 +2,15 @@ import { listPosts } from "@cms/db"
 import { Button } from "@cms/ui/button"
 import { getTranslations } from "next-intl/server"
 
-import { LanguageSwitcher } from "@/components/language-switcher"
-
 export const dynamic = "force-dynamic"
 
 export default async function HomePage() {
   const [posts, t] = await Promise.all([listPosts(), getTranslations("Home")])
 
   return (
-    <main className="mx-auto flex min-h-screen w-full max-w-3xl flex-col gap-6 px-6 py-16">
+    <section className="mx-auto flex w-full max-w-6xl flex-col gap-6 px-6 py-16">
       <header className="space-y-3">
-        <div className="flex flex-wrap items-center justify-between gap-3">
-          <p className="text-sm uppercase tracking-[0.2em] text-neutral-500">{t("badge")}</p>
-          <LanguageSwitcher />
-        </div>
+        <p className="text-sm uppercase tracking-[0.2em] text-neutral-500">{t("badge")}</p>
         <h1 className="text-4xl font-semibold tracking-tight">{t("title")}</h1>
         <p className="text-neutral-600">{t("description")}</p>
       </header>
@@ -36,6 +31,6 @@ export default async function HomePage() {
           ))}
         </ul>
       </section>
-    </main>
+    </section>
   )
 }