chore : move all to root

nest-front/src/components/shared/ProtectedRoute.tsx

@@ -0,0 +1,29 @@
+import { Navigate, useLocation } from 'react-router-dom';
+import { useAuth } from '../../contexts/AuthContext';
+
+interface ProtectedRouteProps {
+  children: React.ReactNode;
+  /** If true, requires staff role (dev or com). */
+  staffOnly?: boolean;
+  /** Redirect destination when access is denied. Defaults to /login. */
+  redirectTo?: string;
+}
+
+export function ProtectedRoute({
+  children,
+  staffOnly = false,
+  redirectTo = '/login',
+}: ProtectedRouteProps) {
+  const { isAuthenticated, isStaff } = useAuth();
+  const location = useLocation();
+
+  if (!isAuthenticated) {
+    return <Navigate to={redirectTo} state={{ from: location }} replace />;
+  }
+
+  if (staffOnly && !isStaff) {
+    return <Navigate to="/" replace />;
+  }
+
+  return <>{children}</>;
+}