feat: add UI build to build process

- Created separate build script to handle both CLI and UI building
- Added automatic UI dependency installation
- Copy built UI artifacts to dist directory

🤖 Generated with [Claude Code](https://claude.ai/code)

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

ui/src/components/Login.tsx

@@ -0,0 +1,129 @@
+import { useState, useEffect } from 'react';
+import { useNavigate } from 'react-router-dom';
+import { useTranslation } from 'react-i18next';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
+import { Card, CardContent, CardDescription, CardFooter, CardHeader, CardTitle } from '@/components/ui/card';
+import { api } from '@/lib/api';
+
+export function Login() {
+  const { t } = useTranslation();
+  const navigate = useNavigate();
+  const [apiKey, setApiKey] = useState('');
+  const [error, setError] = useState('');
+  const [isLoading, setIsLoading] = useState(false);
+
+  // Check if user is already authenticated
+  useEffect(() => {
+    const checkAuth = async () => {
+      const apiKey = localStorage.getItem('apiKey');
+      if (apiKey) {
+        setIsLoading(true);
+        // Verify the API key is still valid
+        try {
+          await api.getConfig();
+          navigate('/dashboard');
+        } catch (err) {
+          // If verification fails, remove the API key
+          localStorage.removeItem('apiKey');
+        } finally {
+          setIsLoading(false);
+        }
+      }
+    };
+
+    checkAuth();
+    
+    // Listen for unauthorized events
+    const handleUnauthorized = () => {
+      navigate('/login');
+    };
+    
+    window.addEventListener('unauthorized', handleUnauthorized);
+    
+    return () => {
+      window.removeEventListener('unauthorized', handleUnauthorized);
+    };
+  }, [navigate]);
+
+  const handleLogin = async (e: React.FormEvent) => {
+    e.preventDefault();
+    
+    try {
+      // Set the API key
+      api.setApiKey(apiKey);
+      
+      // Dispatch storage event to notify other components of the change
+      window.dispatchEvent(new StorageEvent('storage', {
+        key: 'apiKey',
+        newValue: apiKey,
+        url: window.location.href
+      }));
+      
+      // Test the API key by fetching config (skip if apiKey is empty)
+      if (apiKey) {
+        await api.getConfig();
+      }
+      
+      // Navigate to dashboard
+      // The ConfigProvider will handle fetching the config
+      navigate('/dashboard');
+    } catch (err) {
+      // Clear the API key on failure
+      api.setApiKey('');
+      setError(t('login.invalidApiKey'));
+    }
+  };
+
+  if (isLoading) {
+    return (
+      <div className="flex min-h-screen items-center justify-center bg-gray-50">
+        <Card className="w-full max-w-md">
+          <CardHeader className="space-y-1">
+            <CardTitle className="text-2xl">{t('login.title')}</CardTitle>
+          </CardHeader>
+          <CardContent>
+            <div className="flex justify-center py-8">
+              <div className="h-8 w-8 animate-spin rounded-full border-4 border-primary border-t-transparent"></div>
+            </div>
+            <p className="text-center text-sm text-gray-500">{t('login.validating')}</p>
+          </CardContent>
+        </Card>
+      </div>
+    );
+  }
+
+  return (
+    <div className="flex min-h-screen items-center justify-center bg-gray-50">
+      <Card className="w-full max-w-md">
+        <CardHeader className="space-y-1">
+          <CardTitle className="text-2xl">{t('login.title')}</CardTitle>
+          <CardDescription>
+            {t('login.description')}
+          </CardDescription>
+        </CardHeader>
+        <form onSubmit={handleLogin}>
+          <CardContent className="space-y-4">
+            <div className="space-y-2">
+              <Label htmlFor="apiKey">{t('login.apiKey')}</Label>
+              <Input
+                id="apiKey"
+                type="password"
+                value={apiKey}
+                onChange={(e) => setApiKey(e.target.value)}
+                placeholder={t('login.apiKeyPlaceholder')}
+              />
+            </div>
+            {error && <div className="text-sm text-red-500">{error}</div>}
+          </CardContent>
+          <CardFooter>
+            <Button className="w-full" type="submit">
+              {t('login.signIn')}
+            </Button>
+          </CardFooter>
+        </form>
+      </Card>
+    </div>
+  );
+}