feat: 支持 GitHub 主源与自定义策略更新

src/App.scss

@@ -88,6 +88,120 @@
   }
 }
 
+.force-update-overlay {
+  position: fixed;
+  inset: 0;
+  z-index: 5000;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 24px;
+  background: rgba(6, 10, 16, 0.82);
+  backdrop-filter: blur(14px);
+}
+
+.force-update-card {
+  width: min(720px, 100%);
+  max-height: 85vh;
+  overflow: auto;
+  padding: 28px;
+  border-radius: 20px;
+  border: 1px solid rgba(255, 255, 255, 0.08);
+  background: var(--bg-secondary);
+  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
+
+  h2 {
+    margin: 16px 0 10px;
+    font-size: 28px;
+    font-weight: 700;
+    color: var(--text-primary);
+  }
+
+  .force-update-desc {
+    margin: 0 0 18px;
+    color: var(--text-secondary);
+    line-height: 1.7;
+  }
+
+  .force-update-meta {
+    display: grid;
+    gap: 8px;
+    margin-bottom: 18px;
+    padding: 14px 16px;
+    border-radius: 14px;
+    background: var(--bg-primary);
+    color: var(--text-primary);
+    font-size: 14px;
+  }
+
+  .force-update-notes {
+    margin-bottom: 18px;
+    padding: 14px 16px;
+    border-radius: 14px;
+    background: var(--bg-primary);
+
+    .force-update-notes-title {
+      margin-bottom: 10px;
+      font-weight: 600;
+      color: var(--text-primary);
+    }
+
+    pre {
+      margin: 0;
+      white-space: pre-wrap;
+      word-break: break-word;
+      color: var(--text-secondary);
+      font-family: inherit;
+      line-height: 1.6;
+    }
+  }
+
+  .force-update-progress {
+    margin-bottom: 18px;
+  }
+
+  .force-update-progress-label {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    margin-bottom: 10px;
+    color: var(--text-primary);
+    font-size: 14px;
+    font-weight: 600;
+  }
+
+  .force-update-progress-bar {
+    height: 10px;
+    border-radius: 999px;
+    background: var(--bg-primary);
+    overflow: hidden;
+  }
+
+  .force-update-progress-fill {
+    height: 100%;
+    border-radius: inherit;
+    background: linear-gradient(90deg, #ff7849 0%, #ff4747 100%);
+  }
+
+  .force-update-actions {
+    display: flex;
+    gap: 12px;
+    justify-content: flex-end;
+  }
+}
+
+.force-update-badge {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  padding: 8px 12px;
+  border-radius: 999px;
+  background: rgba(255, 92, 92, 0.12);
+  color: #ff5c5c;
+  font-size: 13px;
+  font-weight: 700;
+}
+
 // 独立聊天窗口容器
 .chat-window-container {
   height: 100vh;

src/App.tsx

@@ -38,6 +38,21 @@ import { useAuthStore } from './stores/authStore'
 import { X, Shield, Loader2 } from 'lucide-react'
 import './App.scss'
 
+type AppUpdateInfo = {
+  hasUpdate: boolean
+  forceUpdate: boolean
+  currentVersion: string
+  version?: string
+  releaseNotes?: string
+  title?: string
+  message?: string
+  minimumSupportedVersion?: string
+  reason?: 'minimum-version' | 'blocked-version'
+  checkedAt: number
+  updateSource: 'github' | 'custom' | 'none'
+  policySource: 'github' | 'custom' | 'none'
+}
+
 function App() {
   const navigate = useNavigate()
   const location = useLocation()
@@ -55,7 +70,7 @@ function App() {
   const [showActivation, setShowActivation] = useState(false)
 
   // 更新提示状态
-  const [updateInfo, setUpdateInfo] = useState<{ version: string; releaseNotes: string } | null>(null)
+  const [updateInfo, setUpdateInfo] = useState<AppUpdateInfo | null>(null)
   const [downloadProgress, setDownloadProgress] = useState<number | null>(null)
 
   // 加载主题配置
@@ -136,6 +151,15 @@ function App() {
 
   // 监听启动时的更新通知
   useEffect(() => {
+    let mounted = true
+    window.electronAPI.app.getUpdateState?.().then((info) => {
+      if (mounted && info?.hasUpdate) {
+        setUpdateInfo(info)
+      }
+    }).catch((error) => {
+      console.error('获取更新状态失败:', error)
+    })
+
     const removeUpdateListener = window.electronAPI.app.onUpdateAvailable?.((info) => {
       setUpdateInfo(info)
     })
@@ -162,6 +186,7 @@ function App() {
     })
 
     return () => {
+      mounted = false
       removeUpdateListener?.()
       removeSessionsListener?.()
       removeUpdateAvailableListener?.()
@@ -179,6 +204,7 @@ function App() {
   }, [])
 
   const dismissUpdate = () => {
+    if (updateInfo?.forceUpdate) return
     setUpdateInfo(null)
   }
 
@@ -466,12 +492,13 @@ function App() {
   return (
     <div className="app-container">
       <TitleBar />
-      {updateInfo && (
+      {updateInfo && !updateInfo.forceUpdate && (
         <div className="update-toast">
           <div className="update-toast-icon">🎉</div>
           <div className="update-toast-content">
             <div className="update-toast-title">发现新版本</div>
             <div className="update-toast-version">v{updateInfo.version} 已发布</div>
+            <div className="update-toast-version">更新源：{updateInfo.updateSource === 'github' ? 'GitHub Release' : '未知'}</div>
           </div>
           <button className="update-toast-btn" onClick={() => {
             window.electronAPI.app.downloadAndInstall()
@@ -484,6 +511,56 @@ function App() {
           </button>
         </div>
       )}
+      {updateInfo?.forceUpdate && (
+        <div className="force-update-overlay">
+          <div className="force-update-card">
+            <div className="force-update-badge">
+              <Shield size={18} />
+              <span>强制更新</span>
+            </div>
+            <h2>{updateInfo.title || '必须更新后才能继续使用'}</h2>
+            <p className="force-update-desc">
+              {updateInfo.message || '当前版本已被标记为需要立即升级，应用将限制继续使用，直到安装最新版本。'}
+            </p>
+
+            <div className="force-update-meta">
+              <div>当前版本：v{updateInfo.currentVersion}</div>
+              {updateInfo.version && <div>目标版本：v{updateInfo.version}</div>}
+              {updateInfo.minimumSupportedVersion && <div>最低安全版本：v{updateInfo.minimumSupportedVersion}</div>}
+              <div>更新来源：{updateInfo.updateSource === 'github' ? 'GitHub Release' : '未检测到普通更新源'}</div>
+              <div>策略来源：{updateInfo.policySource === 'github' ? 'GitHub 策略源' : updateInfo.policySource === 'custom' ? '自定义策略源' : '无'}</div>
+            </div>
+
+            {updateInfo.releaseNotes && (
+              <div className="force-update-notes">
+                <div className="force-update-notes-title">更新说明</div>
+                <pre>{updateInfo.releaseNotes}</pre>
+              </div>
+            )}
+
+            {downloadProgress !== null && (
+              <div className="force-update-progress">
+                <div className="force-update-progress-label">
+                  <Loader2 size={16} className="spin" />
+                  <span>正在下载更新... {downloadProgress.toFixed(0)}%</span>
+                </div>
+                <div className="force-update-progress-bar">
+                  <div className="force-update-progress-fill" style={{ width: `${downloadProgress}%` }} />
+                </div>
+              </div>
+            )}
+
+            <div className="force-update-actions">
+              <button className="btn btn-primary" onClick={() => window.electronAPI.app.downloadAndInstall()}>
+                立即更新
+              </button>
+              <button className="btn btn-secondary" onClick={() => window.electronAPI.window.close()}>
+                退出应用
+              </button>
+            </div>
+          </div>
+        </div>
+      )}
 
       <Box
         sx={{

src/pages/SettingsPage.tsx

@@ -98,7 +98,30 @@ function SettingsPage() {
   const [isDownloading, setIsDownloading] = useState(false)
   const [downloadProgress, setDownloadProgress] = useState(0)
   const [appVersion, setAppVersion] = useState('')
-  const [updateInfo, setUpdateInfo] = useState<{ hasUpdate: boolean; version?: string; releaseNotes?: string } | null>(null)
+  const [updateInfo, setUpdateInfo] = useState<{
+    hasUpdate: boolean
+    forceUpdate: boolean
+    currentVersion: string
+    version?: string
+    releaseNotes?: string
+    title?: string
+    message?: string
+    minimumSupportedVersion?: string
+    reason?: 'minimum-version' | 'blocked-version'
+    checkedAt: number
+    updateSource: 'github' | 'custom' | 'none'
+    policySource: 'github' | 'custom' | 'none'
+  } | null>(null)
+  const [updateSourceInfo, setUpdateSourceInfo] = useState<{
+    primaryUpdateSource: 'github'
+    githubRepository: {
+      owner: string
+      repo: string
+    }
+    policySources: Array<'github' | 'custom'>
+    policyPrecedence: 'github'
+    forceUpdatePolicyFallbackUrl: string
+  } | null>(null)
   const [keyStatus, setKeyStatus] = useState('')
   const [message, setMessage] = useState<{ text: string; success: boolean } | null>(null)
   const [showDecryptKey, setShowDecryptKey] = useState(false)
@@ -466,7 +489,7 @@ function SettingsPage() {
       const result = await window.electronAPI.app.checkForUpdates()
       if (result.hasUpdate) {
         setUpdateInfo(result)
-        showMessage(`发现新版本 ${result.version}`, true)
+        showMessage(result.forceUpdate ? `检测到强制更新 ${result.version}` : `发现新版本 ${result.version}`, true)
       } else {
         showMessage('当前已是最新版本', true)
       }
@@ -2646,6 +2669,14 @@ function SettingsPage() {
     }
   }, [location.state])
 
+  useEffect(() => {
+    window.electronAPI.app.getUpdateSourceInfo?.().then((info) => {
+      setUpdateSourceInfo(info)
+    }).catch((error) => {
+      console.error('获取更新源信息失败:', error)
+    })
+  }, [])
+
   const renderAboutTab = () => (
     <div className="tab-content about-tab">
       <div className="about-card">
@@ -2657,9 +2688,24 @@ function SettingsPage() {
         <p className="about-version">v{appVersion || '...'}</p>
 
         <div className="about-update">
+          {updateSourceInfo && (
+            <div className="update-hint" style={{ marginBottom: '10px' }}>
+              主更新源：GitHub Release ({updateSourceInfo.githubRepository.owner}/{updateSourceInfo.githubRepository.repo})<br />
+              策略补充源：{updateSourceInfo.forceUpdatePolicyFallbackUrl}
+            </div>
+          )}
           {updateInfo?.hasUpdate ? (
             <>
-              <p className="update-hint">新版本 v{updateInfo.version} 可用</p>
+              <p className="update-hint">
+                {updateInfo.forceUpdate ? '检测到强制更新' : `新版本 v${updateInfo.version} 可用`}
+              </p>
+              <p className="update-hint">
+                更新来源：{updateInfo.updateSource === 'github' ? 'GitHub Release' : '未知'} / 策略来源：
+                {updateInfo.policySource === 'github' ? 'GitHub' : updateInfo.policySource === 'custom' ? '自定义源' : '无'}
+              </p>
+              {updateInfo.forceUpdate && updateInfo.minimumSupportedVersion && (
+                <p className="update-hint">最低安全版本：v{updateInfo.minimumSupportedVersion}</p>
+              )}
               {isDownloading ? (
                 <div className="download-progress">
                   <div className="progress-bar">

src/types/electron.d.ts

@@ -81,12 +81,62 @@ export interface ElectronAPI {
       cwd: string
       mode: 'dev' | 'packaged'
     } | null>
-    checkForUpdates: () => Promise<{ hasUpdate: boolean; version?: string; releaseNotes?: string }>
+    getUpdateState: () => Promise<{
+      hasUpdate: boolean
+      forceUpdate: boolean
+      currentVersion: string
+      version?: string
+      releaseNotes?: string
+      title?: string
+      message?: string
+      minimumSupportedVersion?: string
+      reason?: 'minimum-version' | 'blocked-version'
+      checkedAt: number
+      updateSource: 'github' | 'custom' | 'none'
+      policySource: 'github' | 'custom' | 'none'
+    } | null>
+    getUpdateSourceInfo: () => Promise<{
+      primaryUpdateSource: 'github'
+      githubRepository: {
+        owner: string
+        repo: string
+      }
+      policySources: Array<'github' | 'custom'>
+      policyPrecedence: 'github'
+      forceUpdatePolicyFallbackUrl: string
+    }>
+    checkForUpdates: () => Promise<{
+      hasUpdate: boolean
+      forceUpdate: boolean
+      currentVersion: string
+      version?: string
+      releaseNotes?: string
+      title?: string
+      message?: string
+      minimumSupportedVersion?: string
+      reason?: 'minimum-version' | 'blocked-version'
+      checkedAt: number
+      updateSource: 'github' | 'custom' | 'none'
+      policySource: 'github' | 'custom' | 'none'
+    }>
     downloadAndInstall: () => Promise<void>
     getStartupDbConnected?: () => Promise<boolean>
     setAppIcon: (iconName: string) => Promise<void>
     onDownloadProgress: (callback: (progress: number) => void) => () => void
-    onUpdateAvailable: (callback: (info: { version: string; releaseNotes: string }) => void) => () => void
+    onUpdateAvailable: (callback: (info: {
+      hasUpdate: boolean
+      forceUpdate: boolean
+      currentVersion: string
+      version?: string
+      releaseNotes?: string
+      title?: string
+      message?: string
+      minimumSupportedVersion?: string
+      reason?: 'minimum-version' | 'blocked-version'
+      checkedAt: number
+      updateSource: 'github' | 'custom' | 'none'
+      policySource: 'github' | 'custom' | 'none'
+    }) => void) => () => void
   }
   httpApi: {
     getStatus: () => Promise<{