Clean up admin hub UX: tabs, chrome, and redundant headers.

Wire orphan routes into hub tabs, group Radio into primary/tools rows, show theme/language once on desktop, and remove duplicate page titles under AdminHubChrome.

Co-authored-by: Cursor <[email protected]>

src/app/admin/radio/page.tsx

@@ -1,4 +1,3 @@
-import Link from "next/link";
 import { getTranslations } from "next-intl/server";
 import { deleteShout } from "@/actions/admin-radio-moderation";
 import { StatusCard } from "@/components/admin/dashboard";
@@ -110,19 +109,6 @@ export default async function AdminRadioPage() {
 
 	return (
 		<main>
-			<nav className="text-xs theme-text-muted dark:theme-text-muted mb-2">
-				<Link href="/admin/radio">{t("title")}</Link> ·{" "}
-				<Link href="/admin/radio/settings">{t("settings")}</Link> ·{" "}
-				<Link href="/admin/radio/banners">{t("banners.title")}</Link> ·{" "}
-				<Link href="/admin/radio/ranks">{t("ranks")}</Link> ·{" "}
-				<Link href="/admin/radio/history">{t("history")}</Link>
-			</nav>
-
-			<h1>{t("title")}</h1>
-			<p className="text-xs theme-text-muted dark:theme-text-muted">
-				{t("subtitle")}
-			</p>
-
 			<div className="grid grid-cols-[repeat(auto-fit,minmax(180px,1fr))] gap-3.5 mb-6">
 				<StatusCard
 					label={t("shouts")}