Mobile friendly, lint correction, typescript error clear

app/(app)/reports/loading.tsx

@@ -0,0 +1,21 @@
+export default function ReportsLoading() {
+  return (
+    <div className="p-4 sm:p-6 space-y-6">
+      <div className="h-8 w-56 rounded-lg bg-white/5" />
+      <div className="grid gap-4 lg:grid-cols-4">
+        {Array.from({ length: 4 }).map((_, idx) => (
+          <div key={idx} className="h-24 rounded-2xl border border-white/10 bg-white/5" />
+        ))}
+      </div>
+      <div className="grid gap-4 lg:grid-cols-[2fr_1fr]">
+        <div className="h-80 rounded-2xl border border-white/10 bg-white/5" />
+        <div className="h-80 rounded-2xl border border-white/10 bg-white/5" />
+      </div>
+      <div className="grid gap-4 lg:grid-cols-3">
+        {Array.from({ length: 3 }).map((_, idx) => (
+          <div key={idx} className="h-24 rounded-2xl border border-white/10 bg-white/5" />
+        ))}
+      </div>
+    </div>
+  );
+}