Create BannerSettings admin subcomponent

cgen-7cabec2174504efbbadba3d2f231e3b6

client/components/admin/BannerSettings.tsx

@@ -0,0 +1,62 @@
+import { useEffect, useState } from "react";
+import { Button } from "@/components/ui/button";
+import { Switch } from "@/components/ui/switch";
+
+export default function BannerSettings() {
+  const [text, setText] = useState("ROBLOX AUTH SOON");
+  const [enabled, setEnabled] = useState(true);
+  const [saving, setSaving] = useState(false);
+
+  useEffect(() => {
+    fetch("/api/site-settings?key=home_banner")
+      .then((r) => (r.ok ? r.json() : null))
+      .then((v) => {
+        if (v && typeof v === "object") {
+          setText(String((v as any).text || "ROBLOX AUTH SOON"));
+          setEnabled((v as any).enabled !== false);
+        }
+      })
+      .catch(() => void 0);
+  }, []);
+
+  const save = async () => {
+    setSaving(true);
+    try {
+      const resp = await fetch("/api/site-settings", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ key: "home_banner", value: { text, enabled } }),
+      });
+      if (!resp.ok) throw new Error("Save failed");
+    } finally {
+      setSaving(false);
+    }
+  };
+
+  return (
+    <div className="space-y-3">
+      <div className="grid gap-2 md:grid-cols-4">
+        <label className="text-sm text-muted-foreground md:col-span-1">Enabled</label>
+        <div className="md:col-span-3">
+          <Switch checked={enabled} onCheckedChange={setEnabled} />
+        </div>
+      </div>
+      <div className="grid gap-2 md:grid-cols-4">
+        <label className="text-sm text-muted-foreground md:col-span-1">Banner text</label>
+        <div className="md:col-span-3">
+          <input
+            className="w-full bg-background/50 border border-border/40 rounded px-2 py-1 text-sm"
+            value={text}
+            onChange={(e) => setText(e.target.value)}
+            placeholder="Banner message"
+          />
+        </div>
+      </div>
+      <div className="flex justify-end">
+        <Button size="sm" onClick={save} disabled={saving}>
+          {saving ? "Saving…" : "Save banner"}
+        </Button>
+      </div>
+    </div>
+  );
+}

client/pages/Admin.tsx

@@ -27,6 +27,7 @@ import AdminChangelogDigest from "@/components/admin/AdminChangelogDigest";
 import AdminSystemMap from "@/components/admin/AdminSystemMap";
 import AdminMentorshipManager from "@/components/admin/AdminMentorshipManager";
 import AdminRoadmap from "@/components/admin/AdminRoadmap";
+import BannerSettings from "@/components/admin/BannerSettings";
 import { changelogEntries } from "@/pages/Changelog";
 import { blogSeedPosts } from "@/data/blogSeed";
 import {