Merge version_4 into main

Merge version_4 into main

src/app/page.tsx

@@ -147,6 +147,7 @@ export default function LandingPage() {
             faqs={[
               { id: "q1", title: "Are your watches authenticated?", content: "Yes, every single watch undergoes a multi-point verification by certified watchmakers." },
               { id: "q2", title: "Do you offer shipping insurance?", content: "Absolutely. Every shipment is fully insured for its total value." },
+              { id: "q3", title: "How does the lifetime buy-back guarantee work?", content: "We provide a seamless process where you can return your certified timepiece to us at any time. We will assess the market value and offer a transparent buy-back price based on its current condition and model rarity, ensuring you always retain liquidity for your investments." },
             ]}
             sideTitle="Questions?"
             sideDescription="Everything you need to know about our collection and services."