Harden DB-reading pages with graceful fallback (no 500 without DB)

/news and six admin pages issued raw prisma reads with no try/catch, so
a DB outage rendered a 500 instead of an empty state. Wrap each read
(try/catch or .catch(() => fallback), preserving select() row types and
notFound() on the user-detail page). Matches the fail-soft pattern used
across the rest of the app.

Verified: tsc 0, next build 0, all public pages 200 against a dead DB.

src/app/admin/bans/page.tsx

@@ -5,11 +5,16 @@ export const dynamic = "force-dynamic";
 
 export default async function AdminBans() {
   const now = Math.floor(Date.now() / 1000);
-  const bans = await prisma.ban.findMany({
-    where: { banExpire: { gt: now } },
-    orderBy: { timestamp: "desc" },
-    take: 100,
-  });
+  let bans: Awaited<ReturnType<typeof prisma.ban.findMany>> = [];
+  try {
+    bans = await prisma.ban.findMany({
+      where: { banExpire: { gt: now } },
+      orderBy: { timestamp: "desc" },
+      take: 100,
+    });
+  } catch {
+    bans = [];
+  }
 
   return (
     <main>