Checkpoint: DashboardLayout redirige maintenant vers /login (connexion locale) au lieu d'afficher le bouton Sign in OAuth

client/src/components/DashboardLayout.tsx

@@ -104,29 +104,8 @@ export default function DashboardLayout({
   }
 
   if (!user) {
-    return (
-      <div className="flex items-center justify-center min-h-screen">
-        <div className="flex flex-col items-center gap-8 p-8 max-w-md w-full">
-          <div className="flex flex-col items-center gap-6">
-            <h1 className="text-2xl font-semibold tracking-tight text-center">
-              Sign in to continue
-            </h1>
-            <p className="text-sm text-muted-foreground text-center max-w-sm">
-              Access to this dashboard requires authentication. Continue to launch the login flow.
-            </p>
-          </div>
-          <Button
-            onClick={() => {
-              window.location.href = getLoginUrl();
-            }}
-            size="lg"
-            className="w-full shadow-lg hover:shadow-xl transition-all"
-          >
-            Sign in
-          </Button>
-        </div>
-      </div>
-    );
+    window.location.href = "/login";
+    return <DashboardLayoutSkeleton />;
   }
 
   return (