fix: corrige tipagem do contexto de autenticação

- Adiciona tipagem User do Supabase para o estado do usuário
- Corrige interface AuthContextType com tipos corretos
- Atualiza AdminUser para garantir email obrigatório
- Adiciona type guard para filtrar usuários válidos
- Exporta e importa tipos do AuthContext corretamente

src/components/auth/ProtectedRoute.tsx

@@ -1,6 +1,7 @@
 import React from 'react';
 import { Navigate, useLocation } from 'react-router-dom';
 import { useAuth } from '../../hooks/useAuth';
+import type { AuthContextType } from '../../hooks/useAuth';
 
 interface ProtectedRouteProps {
   children: React.ReactNode;

src/components/header/ProfileMenu.tsx

@@ -2,6 +2,7 @@ import React from 'react';
 import { useNavigate } from 'react-router-dom';
 import { LogOut, Settings, LayoutDashboard } from 'lucide-react';
 import { useAuth } from '../../hooks/useAuth';
+import type { AuthContextType } from '../../hooks/useAuth';
 
 export function ProfileMenu() {
   const { user, userRole, signOut } = useAuth();

src/hooks/useAuth.tsx

@@ -1,9 +1,10 @@
 import React from 'react';
 import { useNavigate } from 'react-router-dom';
 import { supabase } from '../lib/supabase';
+import { User } from '@supabase/supabase-js';
 
 interface AuthContextType {
-  user: any;
+  user: User | null;
   loading: boolean;
   error: string | null;
   signIn: (email: string, password: string) => Promise<any>;
@@ -16,7 +17,7 @@ const AuthContext = React.createContext<AuthContextType | undefined>(undefined);
 
 export function AuthProvider({ children }: { children: React.ReactNode }) {
   const navigate = useNavigate();
-  const [user, setUser] = React.useState<any>(null);
+  const [user, setUser] = React.useState<User | null>(null);
   const [userRole, setUserRole] = React.useState<string | null>(null);
   const [loading, setLoading] = React.useState(true);
 

src/pages/admin/UserManagementPage.tsx

@@ -1,7 +1,8 @@
 import React from 'react';
 import { supabase } from '../../lib/supabase';
+import { User } from '@supabase/supabase-js';
 
-interface User {
+interface AdminUser {
   id: string;
   email: string;
   user_metadata?: {
@@ -10,7 +11,7 @@ interface User {
 }
 
 export function UserManagementPage() {
-  const [users, setUsers] = React.useState<User[]>([]);
+  const [users, setUsers] = React.useState<AdminUser[]>([]);
   const [loading, setLoading] = React.useState(true);
   const [error, setError] = React.useState<string | null>(null);
   const [updating, setUpdating] = React.useState<string | null>(null);
@@ -23,7 +24,12 @@ export function UserManagementPage() {
     try {
       const { data: { users }, error } = await supabase.auth.admin.listUsers();
       if (error) throw error;
-      setUsers(users?.filter(user => user.email) || []);
+      
+      const validUsers = users?.filter((user): user is AdminUser => 
+        typeof user.email === 'string'
+      ) || [];
+      
+      setUsers(validUsers);
     } catch (err) {
       console.error('Erro ao buscar usuários:', err);
       setError('Não foi possível carregar os usuários');