feat: Add demo login guidance

• Pre-populate login form with demo credentials
• Add user guidance message for demo access

src/components/LoginComponent.jsx

@@ -7,16 +7,18 @@ import { Link } from 'react-router-dom';
 import { Notification, NotificationGroup } from '@progress/kendo-react-notification';
 
 const LoginComponent = ({ onLogin }) => {
-    const [username, setUsername] = useState('');
+    // Get credentials from environment
-    const [password, setPassword] = useState('');
+    const mockUsername = import.meta.env.VITE_MOCK_USERNAME;
+    const mockPassword = import.meta.env.VITE_MOCK_PASSWORD;
+    
+    // Prepopulate with demo credentials from env
+    const [username, setUsername] = useState(mockUsername);
+    const [password, setPassword] = useState(mockPassword);
     const [error, setError] = useState('');
 
     const handleSubmit = (event) => {
         event.preventDefault();
 
-        const mockUsername = import.meta.env.VITE_MOCK_USERNAME;
-        const mockPassword = import.meta.env.VITE_MOCK_PASSWORD;
-
         if (username === mockUsername && password === mockPassword) {
             onLogin(true);
         } else {
@@ -40,7 +42,15 @@ const LoginComponent = ({ onLogin }) => {
                     <Input style={{ border: '1px solid #edbd7d', marginBottom: '10px', width: '300px', maxWidth: '300px', minWidth: '300px' }} type="password" id="password" value={password} onChange={(e) => setPassword(e.target.value)} autoComplete="current-password" />
                 </div>
                 
-                <div style={{ textAlign: 'center' }}>
+                <div style={{ textAlign: 'center', marginBottom: '10px' }}>
+                    <p style={{ 
+                        fontSize: '14px', 
+                        color: '#666', 
+                        fontStyle: 'italic',
+                        margin: '0 0 10px 0'
+                    }}>
+                        Just click 'Login'. The credentials are already loaded for you.
+                    </p>
                     <Button look="flat" type="submit" style={{ padding: '0 20px' }}>Login</Button>
                 </div>
                 <div>