feat: fix footer dead links, add privacy policy and terms of service pages

frontend/app/privacy/page.tsx

@@ -0,0 +1,19 @@
+import Link from "next/link";
+
+export default function PrivacyPage() {
+  return (
+    <div className="flex min-h-[60vh] flex-col items-center justify-center p-6 text-center">
+      <h1 className="mb-4 text-4xl font-bold tracking-tight">Privacy Policy</h1>
+      <p className="mb-8 max-w-md text-muted-foreground">
+        We are currently drafting our official privacy policy. Please check back
+        soon, or reach out to us if you have immediate questions.
+      </p>
+      <Link
+        href="/"
+        className="bg-primary text-primary-foreground hover:bg-primary/90 inline-flex h-10 items-center justify-center rounded-md px-8 text-sm font-medium shadow transition-colors"
+      >
+        Return Home
+      </Link>
+    </div>
+  );
+}

frontend/app/terms/page.tsx

@@ -0,0 +1,21 @@
+import Link from "next/link";
+
+export default function TermsPage() {
+  return (
+    <div className="flex min-h-[60vh] flex-col items-center justify-center p-6 text-center">
+      <h1 className="mb-4 text-4xl font-bold tracking-tight">
+        Terms of Service
+      </h1>
+      <p className="mb-8 max-w-md text-muted-foreground">
+        We are currently drafting our official terms of service. Please check
+        back soon, or reach out to us if you have immediate questions.
+      </p>
+      <Link
+        href="/"
+        className="bg-primary text-primary-foreground hover:bg-primary/90 inline-flex h-10 items-center justify-center rounded-md px-8 text-sm font-medium shadow transition-colors"
+      >
+        Return Home
+      </Link>
+    </div>
+  );
+}

frontend/components/landing/footer.tsx

@@ -61,7 +61,9 @@ export function Footer() {
             <ul className="space-y-2">
               <li>
                 <a
-                  href="#"
+                  href="https://x.com/solstream_xyz?s=21"
+                  target="_blank"
+                  rel="noopener noreferrer"
                   className="text-muted-foreground hover:text-foreground transition-colors flex items-center gap-2"
                 >
                   <Twitter className="h-4 w-4" />
@@ -70,7 +72,9 @@ export function Footer() {
               </li>
               <li>
                 <a
-                  href="#"
+                  href="https://discord.gg/PAvHKqMa"
+                  target="_blank"
+                  rel="noopener noreferrer"
                   className="text-muted-foreground hover:text-foreground transition-colors flex items-center gap-2"
                 >
                   <MessageCircle className="h-4 w-4" />
@@ -79,7 +83,9 @@ export function Footer() {
               </li>
               <li>
                 <a
-                  href="#"
+                  href="https://github.com/JointSave-org/Joint_Save"
+                  target="_blank"
+                  rel="noopener noreferrer"
                   className="text-muted-foreground hover:text-foreground transition-colors flex items-center gap-2"
                 >
                   <Github className="h-4 w-4" />
@@ -93,10 +99,10 @@ export function Footer() {
         <div className="border-t border-border/40 pt-8 flex flex-col sm:flex-row justify-between items-center gap-4">
           <p className="text-sm text-muted-foreground">© 2025 JointSave. Built on Stellar.</p>
           <div className="flex gap-6 text-sm text-muted-foreground">
-            <Link href="#" className="hover:text-foreground transition-colors">
+            <Link href="/privacy" className="hover:text-foreground transition-colors">
               Privacy Policy
             </Link>
-            <Link href="#" className="hover:text-foreground transition-colors">
+            <Link href="/terms" className="hover:text-foreground transition-colors">
               Terms of Service
             </Link>
           </div>