chore(ops): strip redundant force-dynamic and probe Redis in ops health

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

src/app/admin/page.tsx

@@ -13,8 +13,6 @@ import { activeBanWhere } from "@/lib/bans";
 import { formatDate } from "@/lib/format-date";
 import { prisma } from "@/lib/prisma";
 
-export const dynamic = "force-dynamic";
-
 type RankCount = { rank: number; count: number };
 
 export default async function AdminDashboard() {