fix(sidebar): correct logout link path from /auth/logout to /logout

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/sidebar.rs

@@ -96,7 +96,7 @@ pub fn Sidebar(name: String, email: String, avatar_url: String) -> Element {
 
             div { class: "sidebar-bottom-actions",
                 Link {
-                    to: NavigationTarget::<Route>::External("/auth/logout".into()),
+                    to: NavigationTarget::<Route>::External("/logout".into()),
                     class: "sidebar-link logout-btn",
                     Icon { icon: BsBoxArrowRight, width: 18, height: 18 }
                     span { "Logout" }