feat(confidence-engine): add tester legal pages

app/layout.jsx

@@ -1,6 +1,7 @@
 import "./globals.css";
 import ThemeToggle from "@/components/theme-toggle";
 import LogoutButton from "@/components/logout-button";
+import LegalNavigation from "@/components/legal-navigation";
 
 export const metadata = {
   title: "Confidence Engine",
@@ -26,6 +27,9 @@ export default function RootLayout({ children }) {
           </div>
         </header>
         {children}
+        <footer className="app-chrome border-t border-gray-200/80 px-6 py-5">
+          <LegalNavigation />
+        </footer>
       </body>
     </html>
   );