nextjs improvements, auth dummies, auth guard

frontend-react/src/context/UserContext.tsx

@@ -0,0 +1,33 @@
+"use client";
+import React, { createContext, ReactNode, useContext, useState } from "react";
+
+type User = {
+  id: string;
+  name: string;
+  email: string;
+};
+
+type UserContextType = {
+  user: User | null;
+  setUser: (user: User | null) => void;
+};
+
+const UserContext = createContext<UserContextType | undefined>(undefined);
+
+export const UserProvider = ({ children }: { children: ReactNode }) => {
+  const [user, setUser] = useState<User | null>(null);
+
+  return (
+    <UserContext.Provider value={{ user, setUser }}>
+      {children}
+    </UserContext.Provider>
+  );
+};
+
+export const useUser = (): UserContextType => {
+  const context = useContext(UserContext);
+  if (!context) {
+    throw new Error("useUser must be used within a UserProvider");
+  }
+  return context;
+};