Redirect to login with success message after signup

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/pages/Login.jsx

@@ -1,10 +1,12 @@
 import { useState } from 'react';
-import { useNavigate, Link } from 'react-router-dom';
+import { useNavigate, useLocation, Link } from 'react-router-dom';
 import { useAuth } from '../context/AuthContext';
 
 export default function Login() {
   const { login } = useAuth();
   const navigate = useNavigate();
+  const location = useLocation();
+  const successMessage = location.state?.message || '';
   const [email, setEmail] = useState('');
   const [password, setPassword] = useState('');
   const [error, setError] = useState('');
@@ -73,6 +75,7 @@ export default function Login() {
               required
             />
           </div>
+          {successMessage && <p style={{ color: '#22c55e', fontSize: 13, marginBottom: 12 }}>{successMessage}</p>}
           {error && <p style={{ color: '#ef4444', fontSize: 13, marginBottom: 12 }}>{error}</p>}
           <button type="submit" className="btn btn-primary w-full btn-lg" disabled={loading}>
             {loading ? 'Signing in...' : 'Sign In'}