feat(frontend): add animated scroll indicator to landing page hero

thoughts-frontend/components/landing-page.tsx

@@ -1,4 +1,5 @@
 import Link from "next/link";
+import { ChevronDown } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { LandingFeatures } from "./landing-features";
 
@@ -89,6 +90,15 @@ export function LandingPage() {
         </div>
       </section>
 
+      {/* Scroll indicator */}
+      <div className="absolute bottom-8 left-0 right-0 z-10 flex justify-center">
+        <ChevronDown
+          className="animate-float-bob text-muted-foreground/60"
+          size={28}
+          strokeWidth={1.5}
+        />
+      </div>
+
       {/* ── Section 2: Features ── */}
       <section className="relative z-10 container mx-auto max-w-3xl px-4 py-16">
         <p className="text-xs font-semibold uppercase tracking-widest text-muted-foreground text-center mb-2">