fix: 在 HTML 中直接引入飞书 QR SDK

根据官方文档，SDK 应该在 HTML 中通过 script 标签引入，
而不是动态加载。

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

frontend/index.html

@@ -5,6 +5,8 @@
     <link rel="icon" type="image/svg+xml" href="/vite.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>frontend</title>
+    <!-- 飞书扫码登录 SDK -->
+    <script src="https://lf-package-cn.feishucdn.com/obj/feishu-static/lark/passport/qrcode/LarkSSOSDKWebQRCode-1.0.3.js"></script>
   </head>
   <body>
     <div id="root"></div>

frontend/src/pages/login/QRCodeLogin.tsx

@@ -24,52 +24,6 @@ interface QRCodeLoginProps {
   onClose: () => void
 }
 
-// 动态加载飞书 QR SDK
-const loadFeishuQRSDK = (): Promise<boolean> => {
-  return new Promise((resolve) => {
-    // 检查是否已经加载
-    if (window.QR) {
-      console.log('✅ Feishu QR SDK already loaded')
-      resolve(true)
-      return
-    }
-
-    console.log('📦 Loading Feishu QR SDK...')
-
-    const script = document.createElement('script')
-    script.id = 'feishu-qr-sdk'
-    script.src = 'https://lf-package-cn.feishucdn.com/obj/feishu-static/lark/passport/qrcode/LarkSSOSDKWebQRCode-1.0.3.js'
-    script.async = true
-    script.timeout = 5000 // 5秒超时
-
-    const timeoutId = setTimeout(() => {
-      console.warn('⚠️ Feishu QR SDK load timeout, using fallback')
-      resolve(false)
-    }, 5000)
-
-    script.onload = () => {
-      clearTimeout(timeoutId)
-      setTimeout(() => {
-        if (window.QR) {
-          console.log('✅ Feishu QR SDK loaded successfully')
-          resolve(true)
-        } else {
-          console.warn('⚠️ QR SDK loaded but window.QR not found, using fallback')
-          resolve(false)
-        }
-      }, 100)
-    }
-
-    script.onerror = () => {
-      clearTimeout(timeoutId)
-      console.warn('⚠️ Failed to load Feishu QR SDK, using fallback')
-      resolve(false) // 不 reject，而是返回 false 使用降级方案
-    }
-
-    document.head.appendChild(script)
-  })
-}
-
 export default function QRCodeLogin({ visible, onClose }: QRCodeLoginProps) {
   const navigate = useNavigate()
   const [status, setStatus] = useState<'loading' | 'pending' | 'scanning' | 'success'>('loading')
@@ -105,9 +59,6 @@ export default function QRCodeLogin({ visible, onClose }: QRCodeLoginProps) {
     setQrcodeUrl('')
 
     try {
-      // 尝试加载飞书 QR SDK
-      const sdkLoaded = await loadFeishuQRSDK()
-
       // 生成登录会话
       const response = await fetch('/api/v1/auth/qrcode-login', {
         method: 'POST',
@@ -123,7 +74,9 @@ export default function QRCodeLogin({ visible, onClose }: QRCodeLoginProps) {
         const authUrl = result.data.auth_url
         sessionIdRef.current = result.data.session_id
 
-        if (sdkLoaded && window.QR) {
+        // 检查飞书 QR SDK 是否已加载（在 index.html 中引入）
+        if (window.QR) {
+          console.log('✅ Using Feishu QR SDK')
           // 使用飞书官方 QR SDK
           if (qrContainerRef.current) {
             qrContainerRef.current.innerHTML = ''
@@ -139,8 +92,8 @@ export default function QRCodeLogin({ visible, onClose }: QRCodeLoginProps) {
           setStatus('pending')
           startPolling(result.data.session_id)
         } else {
-          // SDK 加载失败，使用普通二维码
-          console.log('📱 Using fallback QR code')
+          // SDK 未加载，使用普通二维码
+          console.warn('⚠️ Feishu QR SDK not loaded, using fallback')
           setQrcodeUrl(authUrl)
           setUseFallback(true)
           setStatus('pending')