Remove application license gate

frontend/src/LoginPage.jsx

@@ -27,21 +27,8 @@ const LoginPage = ({ onLoginSuccess }) => {
   const [password, setPassword] = useState('');
   const [loading, setLoading] = useState(false);
   const [message, setMessage] = useState('');
-  const [licenseStatus, setLicenseStatus] = useState(null);
   const [activeSlide, setActiveSlide] = useState(0);
 
-  useEffect(() => {
-    const checkLicense = async () => {
-      try {
-        const response = await apiClient.get('/license/status');
-        setLicenseStatus(response.data || null);
-      } catch {
-        setLicenseStatus({ ok: false, reason: '无法获取授权状态' });
-      }
-    };
-    checkLicense();
-  }, []);
-
   useEffect(() => {
     const timer = window.setInterval(() => {
       setActiveSlide((current) => (current + 1) % loginSlides.length);
@@ -85,12 +72,6 @@ const LoginPage = ({ onLoginSuccess }) => {
             <p className="login-subtitle">内网受控访问，请使用管理员分配的账号登录。</p>
           </div>
 
-          {licenseStatus && !licenseStatus.ok && (
-            <div className="login-alert warn">
-              当前授权状态异常：{licenseStatus.reason || '未授权'}
-            </div>
-          )}
-
           <form onSubmit={handleSubmit} className="login-form-grid">
             <label className="login-field">
               <span>用户名</span>