fix: arreglar conexión con google auth y proceso de arreglar conexión entre paso2 y paso3

frontend/src/context/AuthProvider.jsx

@@ -1,23 +1,33 @@
-import { useState } from 'react';
+import { useState, useCallback } from 'react';
 import { AuthContext } from './AuthContext';
 
 export const AuthProvider = ({ children }) => {
   const [user, setUser] = useState(() => {
-    const storedUser = localStorage.getItem('user');
-    return storedUser ? JSON.parse(storedUser) : null;
+    try {
+      const storedUser = localStorage.getItem('user');
+      return storedUser ? JSON.parse(storedUser) : null;
+    } catch {
+      return null;
+    }
   });
 
-  const login = (userData, token) => {
-    setUser(userData);
-    localStorage.setItem('user', JSON.stringify(userData));
-    localStorage.setItem('token', token);
-  };
+  const login = useCallback((data) => {
+    const currentUser = data.user || data;
+    const token = data.access_token || data.token;
 
-  const logout = () => {
+    setUser(currentUser);
+    localStorage.setItem('user', JSON.stringify(currentUser));
+    
+    if (token) {
+      localStorage.setItem('token', token);
+    }
+  }, []);
+
+  const logout = useCallback(() => {
     setUser(null);
     localStorage.removeItem('user');
     localStorage.removeItem('token');
-  };
+  }, []);
 
   return (
     <AuthContext.Provider value={{