新增渠道更新

.github/workflows/dev-daily-fixed.yml

@@ -0,0 +1,208 @@
+name: Dev Daily (Fixed Release)
+
+on:
+  schedule:
+    # GitHub Actions schedule uses UTC. 16:00 UTC = 北京时间次日 00:00
+    - cron: "0 16 * * *"
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+env:
+  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: "true"
+  FIXED_DEV_TAG: nightly-dev
+
+jobs:
+  prepare:
+    runs-on: ubuntu-latest
+    outputs:
+      dev_version: ${{ steps.meta.outputs.dev_version }}
+    steps:
+      - name: Check out git repository
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Install Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 24
+          cache: "npm"
+
+      - name: Generate daily dev version
+        id: meta
+        shell: bash
+        run: |
+          set -euo pipefail
+          BASE_VERSION="$(node -p "require('./package.json').version.split('-')[0]")"
+          YEAR_2="$(TZ=Asia/Shanghai date +%y)"
+          MONTH="$(TZ=Asia/Shanghai date +%-m)"
+          DAY="$(TZ=Asia/Shanghai date +%-d)"
+          DEV_VERSION="${BASE_VERSION}-dev.${YEAR_2}.${MONTH}.${DAY}"
+          echo "dev_version=$DEV_VERSION" >> "$GITHUB_OUTPUT"
+          echo "Dev version: $DEV_VERSION"
+
+      - name: Ensure fixed prerelease exists
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        shell: bash
+        run: |
+          set -euo pipefail
+          if gh release view "$FIXED_DEV_TAG" --repo "$GITHUB_REPOSITORY" >/dev/null 2>&1; then
+            gh release edit "$FIXED_DEV_TAG" --repo "$GITHUB_REPOSITORY" --title "Daily Dev Build" --prerelease
+          else
+            gh release create "$FIXED_DEV_TAG" --repo "$GITHUB_REPOSITORY" --title "Daily Dev Build" --notes "固定开发版发布页（每日覆盖更新）" --prerelease
+          fi
+
+  dev-mac-arm64:
+    needs: prepare
+    runs-on: macos-14
+    steps:
+      - name: Check out git repository
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Install Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 24
+          cache: "npm"
+
+      - name: Install Dependencies
+        run: npm install
+
+      - name: Set dev version
+        shell: bash
+        run: npm version "${{ needs.prepare.outputs.dev_version }}" --no-git-tag-version --allow-same-version
+
+      - name: Build Frontend & Type Check
+        run: |
+          npx tsc
+          npx vite build
+
+      - name: Package macOS arm64 dev artifacts
+        run: |
+          npx electron-builder --mac dmg --arm64 --publish never '--config.publish.channel=dev' '--config.artifactName=${productName}-dev-arm64.${ext}'
+
+      - name: Upload macOS arm64 assets to fixed release
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        shell: bash
+        run: |
+          gh release upload "$FIXED_DEV_TAG" release/* --repo "$GITHUB_REPOSITORY" --clobber
+
+  dev-linux:
+    needs: prepare
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out git repository
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Install Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 24
+          cache: "npm"
+
+      - name: Install Dependencies
+        run: npm install
+
+      - name: Set dev version
+        shell: bash
+        run: npm version "${{ needs.prepare.outputs.dev_version }}" --no-git-tag-version --allow-same-version
+
+      - name: Build Frontend & Type Check
+        run: |
+          npx tsc
+          npx vite build
+
+      - name: Package Linux dev artifacts
+        run: |
+          npx electron-builder --linux --publish never '--config.publish.channel=dev' '--config.artifactName=${productName}-dev-linux.${ext}'
+
+      - name: Upload Linux assets to fixed release
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        shell: bash
+        run: |
+          gh release upload "$FIXED_DEV_TAG" release/* --repo "$GITHUB_REPOSITORY" --clobber
+
+  dev-win-x64:
+    needs: prepare
+    runs-on: windows-latest
+    steps:
+      - name: Check out git repository
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Install Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 24
+          cache: "npm"
+
+      - name: Install Dependencies
+        run: npm install
+
+      - name: Set dev version
+        shell: bash
+        run: npm version "${{ needs.prepare.outputs.dev_version }}" --no-git-tag-version --allow-same-version
+
+      - name: Build Frontend & Type Check
+        run: |
+          npx tsc
+          npx vite build
+
+      - name: Package Windows x64 dev artifacts
+        run: |
+          npx electron-builder --win nsis --x64 --publish never '--config.publish.channel=dev' '--config.artifactName=${productName}-dev-x64-Setup.${ext}'
+
+      - name: Upload Windows x64 assets to fixed release
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        shell: bash
+        run: |
+          gh release upload "$FIXED_DEV_TAG" release/* --repo "$GITHUB_REPOSITORY" --clobber
+
+  dev-win-arm64:
+    needs: prepare
+    runs-on: windows-latest
+    steps:
+      - name: Check out git repository
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Install Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 24
+          cache: "npm"
+
+      - name: Install Dependencies
+        run: npm install
+
+      - name: Set dev version
+        shell: bash
+        run: npm version "${{ needs.prepare.outputs.dev_version }}" --no-git-tag-version --allow-same-version
+
+      - name: Build Frontend & Type Check
+        run: |
+          npx tsc
+          npx vite build
+
+      - name: Package Windows arm64 dev artifacts
+        run: |
+          npx electron-builder --win nsis --arm64 --publish never '--config.publish.channel=dev-arm64' '--config.artifactName=${productName}-dev-arm64-Setup.${ext}'
+
+      - name: Upload Windows arm64 assets to fixed release
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        shell: bash
+        run: |
+          gh release upload "$FIXED_DEV_TAG" release/* --repo "$GITHUB_REPOSITORY" --clobber

.github/workflows/preview-nightly-main.yml

@@ -0,0 +1,197 @@
+name: Preview Nightly (Main)
+
+on:
+  schedule:
+    # GitHub Actions schedule uses UTC. 16:00 UTC = 北京时间次日 00:00
+    - cron: "0 16 * * *"
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+env:
+  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: "true"
+
+jobs:
+  prepare:
+    runs-on: ubuntu-latest
+    outputs:
+      should_build: ${{ steps.meta.outputs.should_build }}
+      preview_version: ${{ steps.meta.outputs.preview_version }}
+    steps:
+      - name: Check out git repository
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Install Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 24
+          cache: "npm"
+
+      - name: Decide whether to build and generate preview version
+        id: meta
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        shell: bash
+        run: |
+          set -euo pipefail
+
+          git fetch origin main --depth=1
+          COMMITS_24H="$(git rev-list --count --since='24 hours ago' origin/main)"
+
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            SHOULD_BUILD=true
+          elif [ "$COMMITS_24H" -gt 0 ]; then
+            SHOULD_BUILD=true
+          else
+            SHOULD_BUILD=false
+          fi
+
+          BASE_VERSION="$(node -p "require('./package.json').version.split('-')[0]")"
+          YEAR_2="$(TZ=Asia/Shanghai date +%y)"
+          EXISTING_COUNT="$(gh api --paginate "repos/${GITHUB_REPOSITORY}/releases" --jq "[.[].tag_name | select(test(\"^v${BASE_VERSION}-preview\\.${YEAR_2}\\.[0-9]+$\"))] | length")"
+          NEXT_COUNT=$((EXISTING_COUNT + 1))
+          PREVIEW_VERSION="${BASE_VERSION}-preview.${YEAR_2}.${NEXT_COUNT}"
+
+          echo "should_build=$SHOULD_BUILD" >> "$GITHUB_OUTPUT"
+          echo "preview_version=$PREVIEW_VERSION" >> "$GITHUB_OUTPUT"
+          echo "Preview version: $PREVIEW_VERSION (commits in last 24h on main: $COMMITS_24H)"
+
+  preview-mac-arm64:
+    needs: prepare
+    if: needs.prepare.outputs.should_build == 'true'
+    runs-on: macos-14
+    steps:
+      - name: Check out git repository
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Install Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 24
+          cache: "npm"
+
+      - name: Install Dependencies
+        run: npm install
+
+      - name: Set preview version
+        shell: bash
+        run: npm version "${{ needs.prepare.outputs.preview_version }}" --no-git-tag-version --allow-same-version
+
+      - name: Build Frontend & Type Check
+        run: |
+          npx tsc
+          npx vite build
+
+      - name: Package and Publish macOS arm64 preview
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          CSC_IDENTITY_AUTO_DISCOVERY: "false"
+        run: |
+          npx electron-builder --mac dmg --arm64 --publish always '--config.publish.releaseType=prerelease' '--config.publish.channel=preview'
+
+  preview-linux:
+    needs: prepare
+    if: needs.prepare.outputs.should_build == 'true'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out git repository
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Install Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 24
+          cache: "npm"
+
+      - name: Install Dependencies
+        run: npm install
+
+      - name: Set preview version
+        shell: bash
+        run: npm version "${{ needs.prepare.outputs.preview_version }}" --no-git-tag-version --allow-same-version
+
+      - name: Build Frontend & Type Check
+        run: |
+          npx tsc
+          npx vite build
+
+      - name: Package and Publish Linux preview
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          npx electron-builder --linux --publish always '--config.publish.releaseType=prerelease' '--config.publish.channel=preview'
+
+  preview-win-x64:
+    needs: prepare
+    if: needs.prepare.outputs.should_build == 'true'
+    runs-on: windows-latest
+    steps:
+      - name: Check out git repository
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Install Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 24
+          cache: "npm"
+
+      - name: Install Dependencies
+        run: npm install
+
+      - name: Set preview version
+        shell: bash
+        run: npm version "${{ needs.prepare.outputs.preview_version }}" --no-git-tag-version --allow-same-version
+
+      - name: Build Frontend & Type Check
+        run: |
+          npx tsc
+          npx vite build
+
+      - name: Package and Publish Windows x64 preview
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          npx electron-builder --win nsis --x64 --publish always '--config.publish.releaseType=prerelease' '--config.publish.channel=preview' '--config.artifactName=${productName}-${version}-x64-Setup.${ext}'
+
+  preview-win-arm64:
+    needs: prepare
+    if: needs.prepare.outputs.should_build == 'true'
+    runs-on: windows-latest
+    steps:
+      - name: Check out git repository
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Install Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 24
+          cache: "npm"
+
+      - name: Install Dependencies
+        run: npm install
+
+      - name: Set preview version
+        shell: bash
+        run: npm version "${{ needs.prepare.outputs.preview_version }}" --no-git-tag-version --allow-same-version
+
+      - name: Build Frontend & Type Check
+        run: |
+          npx tsc
+          npx vite build
+
+      - name: Package and Publish Windows arm64 preview
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          npx electron-builder --win nsis --arm64 --publish always '--config.publish.releaseType=prerelease' '--config.publish.channel=preview-arm64' '--config.artifactName=${productName}-${version}-arm64-Setup.${ext}'

.github/workflows/security-scan.yml

@@ -4,6 +4,8 @@ on:
   schedule:
     - cron: '0 2 * * *'  # 每天 UTC 02:00（北京时间 10:00）
   workflow_dispatch:     # 支持手动触发
+  pull_request:          # 监控 PR
+    branches: [ main, dev ]
 
 permissions:
   contents: read

electron/main.ts

@@ -36,10 +36,41 @@ import { messagePushService } from './services/messagePushService'
 autoUpdater.autoDownload = false
 autoUpdater.autoInstallOnAppQuit = true
 autoUpdater.disableDifferentialDownload = true  // 禁用差分更新，强制全量下载
-// Windows x64 与 arm64 使用不同更新通道，避免 latest.yml 互相覆盖导致下错架构安装包。
+// 更新通道策略：
-if (process.platform === 'win32' && process.arch === 'arm64') {
+// - 稳定版（如 4.3.0）默认走 latest
-  autoUpdater.channel = 'latest-arm64'
+// - 预览版（如 4.3.0-preview.26.1）默认走 preview
+// - 开发版（如 4.3.0-dev.26.3.4）默认走 dev
+// - 用户可在设置页切换稳定/预览/开发，切换后即时生效
+// 同时区分 Windows x64 / arm64，避免更新清单互相覆盖。
+const appVersion = app.getVersion()
+const defaultUpdateTrack: 'stable' | 'preview' | 'dev' = (() => {
+  if (/-preview\.\d+\.\d+$/i.test(appVersion)) return 'preview'
+  if (/-dev\.\d+\.\d+\.\d+$/i.test(appVersion)) return 'dev'
+  if (/(alpha|beta|rc)/i.test(appVersion)) return 'dev'
+  return 'stable'
+})()
+const isPrereleaseBuild = defaultUpdateTrack !== 'stable'
+let configService: ConfigService | null = null
+
+const normalizeUpdateTrack = (raw: unknown): 'stable' | 'preview' | 'dev' | null => {
+  if (raw === 'stable' || raw === 'preview' || raw === 'dev') return raw
+  return null
 }
+
+const applyAutoUpdateChannel = (reason: 'startup' | 'settings' = 'startup') => {
+  const configuredTrack = normalizeUpdateTrack(configService?.get('updateChannel'))
+  const track: 'stable' | 'preview' | 'dev' = configuredTrack || defaultUpdateTrack
+  const baseUpdateChannel = track === 'stable' ? 'latest' : track
+  autoUpdater.allowPrerelease = track !== 'stable'
+  autoUpdater.allowDowngrade = isPrereleaseBuild && track === 'stable'
+  autoUpdater.channel =
+    process.platform === 'win32' && process.arch === 'arm64'
+      ? `${baseUpdateChannel}-arm64`
+      : baseUpdateChannel
+  console.log(`[Update](${reason}) 当前版本 ${appVersion}，渠道偏好: ${track}，更新通道: ${autoUpdater.channel}`)
+}
+
+applyAutoUpdateChannel('startup')
 const AUTO_UPDATE_ENABLED =
   process.env.AUTO_UPDATE_ENABLED === 'true' ||
   process.env.AUTO_UPDATE_ENABLED === '1' ||
@@ -87,7 +118,6 @@ function sanitizePathEnv() {
 sanitizePathEnv()
 
 // 单例服务
-let configService: ConfigService | null = null
 
 // 协议窗口实例
 let agreementWindow: BrowserWindow | null = null
@@ -1117,6 +1147,9 @@ function registerIpcHandlers() {
 
   ipcMain.handle('config:set', async (_, key: string, value: any) => {
     const result = configService?.set(key as any, value)
+    if (key === 'updateChannel') {
+      applyAutoUpdateChannel('settings')
+    }
     void messagePushService.handleConfigChanged(key)
     return result
   })
@@ -2741,6 +2774,7 @@ app.whenReady().then(async () => {
   // 初始化配置服务
   updateSplashProgress(5, '正在加载配置...')
   configService = new ConfigService()
+  applyAutoUpdateChannel('startup')
 
   // 将用户主题配置推送给 Splash 窗口
   if (splashWindow && !splashWindow.isDestroyed()) {

electron/services/config.ts

@@ -45,6 +45,7 @@ interface ConfigSchema {
 
   // 更新相关
   ignoredUpdateVersion: string
+  updateChannel: 'auto' | 'stable' | 'preview' | 'dev'
 
   // 通知
   notificationEnabled: boolean
@@ -119,6 +120,7 @@ export class ConfigService {
       authUseHello: false,
       authHelloSecret: '',
       ignoredUpdateVersion: '',
+      updateChannel: 'auto',
       notificationEnabled: true,
       notificationPosition: 'top-right',
       notificationFilterMode: 'all',

src/pages/SettingsPage.scss

@@ -1401,6 +1401,220 @@
   }
 }
 
+// 版本更新页面
+.updates-tab {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+}
+
+.updates-hero {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 16px;
+  padding: 20px 22px;
+  border-radius: 18px;
+  border: 1px solid color-mix(in srgb, var(--primary) 18%, var(--border-color));
+  background:
+    linear-gradient(110deg, color-mix(in srgb, var(--bg-primary) 98%, #ffffff 2%), color-mix(in srgb, var(--bg-primary) 97%, var(--primary) 3%));
+  box-shadow: 0 8px 22px color-mix(in srgb, var(--primary) 8%, transparent);
+}
+
+.updates-hero-main {
+  min-width: 0;
+
+  h2 {
+    margin: 10px 0 6px;
+    font-size: 30px;
+    line-height: 1;
+    letter-spacing: -0.03em;
+    color: var(--text-primary);
+  }
+
+  p {
+    margin: 0;
+    font-size: 13px;
+    color: var(--text-secondary);
+  }
+}
+
+.updates-chip {
+  display: inline-flex;
+  align-items: center;
+  height: 24px;
+  padding: 0 10px;
+  border-radius: 999px;
+  font-size: 12px;
+  font-weight: 600;
+  color: var(--primary);
+  background: color-mix(in srgb, var(--primary) 12%, transparent);
+}
+
+.updates-hero-action {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+  align-items: flex-end;
+}
+
+.updates-card {
+  padding: 18px;
+  border-radius: 16px;
+  border: 1px solid var(--border-color);
+  background: color-mix(in srgb, var(--bg-primary) 96%, var(--bg-secondary));
+}
+
+.updates-progress-card {
+  padding: 16px 18px;
+  border-radius: 16px;
+  border: 1px solid color-mix(in srgb, var(--primary) 34%, var(--border-color));
+  background: color-mix(in srgb, var(--bg-primary) 95%, var(--primary) 4%);
+}
+
+.updates-progress-header {
+  display: flex;
+  align-items: baseline;
+  justify-content: space-between;
+  gap: 10px;
+  margin-bottom: 10px;
+
+  h3 {
+    margin: 0;
+    font-size: 15px;
+    color: var(--text-primary);
+  }
+
+  strong {
+    color: var(--primary);
+    font-size: 14px;
+    font-variant-numeric: tabular-nums;
+  }
+
+  span {
+    font-size: 12px;
+    color: var(--text-secondary);
+  }
+}
+
+.updates-card-header {
+  margin-bottom: 12px;
+
+  h3 {
+    margin: 0 0 4px;
+    font-size: 16px;
+    color: var(--text-primary);
+  }
+
+  span {
+    font-size: 12px;
+    color: var(--text-tertiary);
+  }
+}
+
+.update-channel-grid {
+  display: grid;
+  gap: 10px;
+}
+
+.update-channel-card {
+  width: 100%;
+  text-align: left;
+  border: 1px solid var(--border-color);
+  border-radius: 14px;
+  padding: 12px 14px;
+  background: var(--bg-primary);
+  color: var(--text-primary);
+  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
+  cursor: pointer;
+
+  &:hover:not(:disabled) {
+    border-color: color-mix(in srgb, var(--primary) 42%, var(--border-color));
+    transform: translateY(-1px);
+    box-shadow: 0 8px 24px color-mix(in srgb, var(--primary) 12%, transparent);
+  }
+
+  &:disabled {
+    cursor: default;
+  }
+
+  &.active {
+    border-color: color-mix(in srgb, var(--primary) 60%, var(--border-color));
+    background: color-mix(in srgb, var(--primary) 10%, var(--bg-primary));
+  }
+}
+
+.update-channel-title-row {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-bottom: 6px;
+
+  .title {
+    font-size: 14px;
+    font-weight: 600;
+    color: var(--text-primary);
+  }
+
+  svg {
+    color: var(--primary);
+  }
+}
+
+.update-channel-card .desc {
+  display: block;
+  font-size: 12px;
+  color: var(--text-secondary);
+}
+
+.updates-progress-track {
+  height: 10px;
+  border-radius: 999px;
+  background: var(--bg-tertiary);
+  overflow: hidden;
+}
+
+.updates-progress-fill {
+  height: 100%;
+  border-radius: inherit;
+  background: linear-gradient(90deg, var(--primary), color-mix(in srgb, var(--primary) 72%, #ffffff));
+  transition: width 0.3s ease;
+  position: relative;
+
+  &::after {
+    content: '';
+    position: absolute;
+    inset: 0;
+    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.26), transparent);
+    animation: updatesShimmer 1.7s linear infinite;
+  }
+}
+
+.updates-ignore-btn {
+  margin-top: 12px;
+}
+
+@media (max-width: 920px) {
+  .updates-hero {
+    flex-direction: column;
+    align-items: flex-start;
+  }
+
+  .updates-hero-action {
+    align-items: flex-start;
+  }
+}
+
+@keyframes updatesShimmer {
+  from {
+    transform: translateX(-100%);
+  }
+
+  to {
+    transform: translateX(100%);
+  }
+}
+
 
 // 关于页面
 .about-tab {

src/pages/SettingsPage.tsx

@@ -15,7 +15,7 @@ import {
 import { Avatar } from '../components/Avatar'
 import './SettingsPage.scss'
 
-type SettingsTab = 'appearance' | 'notification' | 'database' | 'models' | 'cache' | 'api' | 'security' | 'about' | 'analytics'
+type SettingsTab = 'appearance' | 'notification' | 'database' | 'models' | 'cache' | 'api' | 'updates' | 'security' | 'about' | 'analytics'
 
 const tabs: { id: SettingsTab; label: string; icon: React.ElementType }[] = [
   { id: 'appearance', label: '外观', icon: Palette },
@@ -24,9 +24,9 @@ const tabs: { id: SettingsTab; label: string; icon: React.ElementType }[] = [
   { id: 'models', label: '模型管理', icon: Mic },
   { id: 'cache', label: '缓存', icon: HardDrive },
   { id: 'api', label: 'API 服务', icon: Globe },
-
   { id: 'analytics', label: '分析', icon: BarChart2 },
   { id: 'security', label: '安全', icon: ShieldCheck },
+  { id: 'updates', label: '版本更新', icon: RefreshCw },
   { id: 'about', label: '关于', icon: Info }
 ]
 
@@ -68,7 +68,6 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
     setDownloadProgress,
     showUpdateDialog,
     setShowUpdateDialog,
-    setUpdateError
   } = useAppStore()
 
   const resetChatStore = useChatStore((state) => state.reset)
@@ -141,6 +140,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
   const [notificationFilterList, setNotificationFilterList] = useState<string[]>([])
   const [windowCloseBehavior, setWindowCloseBehavior] = useState<configService.WindowCloseBehavior>('ask')
   const [quoteLayout, setQuoteLayout] = useState<configService.QuoteLayout>('quote-top')
+  const [updateChannel, setUpdateChannel] = useState<configService.UpdateChannel>('stable')
   const [filterSearchKeyword, setFilterSearchKeyword] = useState('')
   const [filterModeDropdownOpen, setFilterModeDropdownOpen] = useState(false)
   const [positionDropdownOpen, setPositionDropdownOpen] = useState(false)
@@ -339,6 +339,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
       const savedMessagePushEnabled = await configService.getMessagePushEnabled()
       const savedWindowCloseBehavior = await configService.getWindowCloseBehavior()
       const savedQuoteLayout = await configService.getQuoteLayout()
+      const savedUpdateChannel = await configService.getUpdateChannel()
 
       const savedAuthEnabled = await window.electronAPI.auth.verifyEnabled()
       const savedAuthUseHello = await configService.getAuthUseHello()
@@ -387,6 +388,18 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
       setMessagePushEnabled(savedMessagePushEnabled)
       setWindowCloseBehavior(savedWindowCloseBehavior)
       setQuoteLayout(savedQuoteLayout)
+      if (savedUpdateChannel) {
+        setUpdateChannel(savedUpdateChannel)
+      } else {
+        const currentVersion = await window.electronAPI.app.getVersion()
+        if (/-preview\.\d+\.\d+$/i.test(currentVersion)) {
+          setUpdateChannel('preview')
+        } else if (/-dev\.\d+\.\d+\.\d+$/i.test(currentVersion) || /(alpha|beta|rc)/i.test(currentVersion)) {
+          setUpdateChannel('dev')
+        } else {
+          setUpdateChannel('stable')
+        }
+      }
 
       const savedExcludeWords = await configService.getWordCloudExcludeWords()
       setWordCloudExcludeWords(savedExcludeWords)
@@ -512,7 +525,22 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
     }
   }
 
+  const handleUpdateChannelChange = async (channel: configService.UpdateChannel) => {
+    if (channel === updateChannel) return
 
+    try {
+      setUpdateChannel(channel)
+      await configService.setUpdateChannel(channel)
+      await configService.setIgnoredUpdateVersion('')
+      setUpdateInfo(null)
+      setShowUpdateDialog(false)
+      const channelLabel = channel === 'stable' ? '稳定版' : channel === 'preview' ? '预览版' : '开发版'
+      showMessage(`已切换到${channelLabel}更新渠道，正在检查更新`, true)
+      await handleCheckUpdate()
+    } catch (e: any) {
+      showMessage(`切换更新渠道失败: ${e}`, false)
+    }
+  }
 
   const showMessage = (text: string, success: boolean) => {
     setMessage({ text, success })
@@ -1474,6 +1502,16 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
 
   const renderDatabaseTab = () => (
     <div className="tab-content">
+      <div className="form-group">
+        <label>连接测试</label>
+        <span className="form-hint">检测当前数据库配置是否可用</span>
+        <button className="btn btn-secondary" onClick={handleTestConnection} disabled={isLoading || isTesting}>
+          <Plug size={16} /> {isTesting ? '测试中...' : '测试连接'}
+        </button>
+      </div>
+
+      <div className="divider" />
+
       <div className="form-group">
         <label>解密密钥</label>
         <span className="form-hint">64位十六进制密钥</span>
@@ -2400,35 +2438,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
           <img src="./logo.png" alt="WeFlow" />
         </div>
         <h2 className="about-name">WeFlow</h2>
-        <p className="about-slogan">WeFlow</p>
         <p className="about-version">v{appVersion || '...'}</p>
-
-        <div className="about-update">
-          {updateInfo?.hasUpdate ? (
-            <>
-              <p className="update-hint">新版 v{updateInfo.version} 可用</p>
-              {isDownloading ? (
-                <div className="update-progress">
-                  <div className="progress-bar">
-                    <div className="progress-inner" style={{ width: `${(downloadProgress?.percent || 0)}%` }} />
-                  </div>
-                  <span>{(downloadProgress?.percent || 0).toFixed(0)}%</span>
-                </div>
-              ) : (
-                <button className="btn btn-primary" onClick={() => setShowUpdateDialog(true)}>
-                  <Download size={16} /> 立即更新
-                </button>
-              )}
-            </>
-          ) : (
-            <div style={{ display: 'flex', gap: '10px', alignItems: 'center' }}>
-              <button className="btn btn-secondary" onClick={handleCheckUpdate} disabled={isCheckingUpdate}>
-                <RefreshCw size={16} className={isCheckingUpdate ? 'spin' : ''} />
-                {isCheckingUpdate ? '检查中...' : '检查更新'}
-              </button>
-            </div>
-          )}
-        </div>
       </div>
 
       <div className="about-footer">
@@ -2440,7 +2450,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
           <span>·</span>
           <a href="#" onClick={(e) => { e.preventDefault(); window.electronAPI.window.openAgreementWindow() }}>用户协议</a>
         </div>
-        <p className="copyright">© 2025 WeFlow. All rights reserved.</p>
+        <p className="copyright">© 2026 WeFlow. All rights reserved.</p>
 
         <div className="log-toggle-line" style={{ marginTop: '16px', justifyContent: 'center' }}>
           <span style={{ fontSize: '13px', opacity: 0.7 }}>匿名数据收集</span>
@@ -2463,6 +2473,82 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
     </div>
   )
 
+  const renderUpdatesTab = () => {
+    const downloadPercent = Math.max(0, Math.min(100, Number(downloadProgress?.percent || 0)))
+    const channelCards: { id: configService.UpdateChannel; title: string; desc: string }[] = [
+      { id: 'stable', title: '稳定版', desc: '正式发布的版本，适合日常使用' },
+      { id: 'preview', title: '预览版', desc: '正式发布前的预览体验版本' },
+      { id: 'dev', title: '开发版', desc: '即刻体验我们的屎山代码' }
+    ]
+
+    return (
+      <div className="tab-content updates-tab">
+        <div className="updates-hero">
+          <div className="updates-hero-main">
+            <span className="updates-chip">当前版本</span>
+            <h2>{appVersion || '...'}</h2>
+            <p>{updateInfo?.hasUpdate ? `发现新版本 v${updateInfo.version}` : '当前已是最新版本，可手动检查更新'}</p>
+          </div>
+          <div className="updates-hero-action">
+            {updateInfo?.hasUpdate ? (
+              <button className="btn btn-primary" onClick={() => setShowUpdateDialog(true)}>
+                <Download size={16} /> 立即更新
+              </button>
+            ) : (
+              <button className="btn btn-secondary" onClick={handleCheckUpdate} disabled={isCheckingUpdate}>
+                <RefreshCw size={16} className={isCheckingUpdate ? 'spin' : ''} />
+                {isCheckingUpdate ? '检查中...' : '检查更新'}
+              </button>
+            )}
+          </div>
+        </div>
+
+        {(isDownloading || updateInfo?.hasUpdate) && (
+          <div className="updates-progress-card">
+            <div className="updates-progress-header">
+              <h3>{isDownloading ? `正在下载 v${updateInfo?.version || ''}` : `新版本 v${updateInfo?.version} 已就绪`}</h3>
+              {isDownloading ? <strong>{downloadPercent.toFixed(0)}%</strong> : <span>可立即安装</span>}
+            </div>
+            <div className="updates-progress-track">
+              <div className="updates-progress-fill" style={{ width: `${isDownloading ? downloadPercent : 100}%` }} />
+            </div>
+            {updateInfo?.hasUpdate && !isDownloading && (
+              <button className="btn btn-secondary updates-ignore-btn" onClick={handleIgnoreUpdate}>
+                暂不提醒此版本
+              </button>
+            )}
+          </div>
+        )}
+
+        <div className="updates-card">
+          <div className="updates-card-header">
+            <h3>更新渠道</h3>
+            <span>切换渠道后会自动重新检查</span>
+          </div>
+          <div className="update-channel-grid">
+            {channelCards.map((channel) => {
+              const active = updateChannel === channel.id
+              return (
+                <button
+                  key={channel.id}
+                  className={`update-channel-card ${active ? 'active' : ''}`}
+                  onClick={() => void handleUpdateChannelChange(channel.id)}
+                  disabled={active}
+                >
+                  <div className="update-channel-title-row">
+                    <span className="title">{channel.title}</span>
+                    {active && <Check size={16} />}
+                  </div>
+                  <span className="desc">{channel.desc}</span>
+                </button>
+              )
+            })}
+          </div>
+        </div>
+      </div>
+    )
+  }
+
   return (
     <div className={`settings-modal-overlay ${isClosing ? 'closing' : ''}`} onClick={handleClose}>
       <div className={`settings-page ${isClosing ? 'closing' : ''}`} onClick={(event) => event.stopPropagation()}>
@@ -2510,9 +2596,6 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
             <h1>设置</h1>
           </div>
           <div className="settings-actions">
-            <button className="btn btn-secondary" onClick={handleTestConnection} disabled={isLoading || isTesting}>
-              <Plug size={16} /> {isTesting ? '测试中...' : '测试连接'}
-            </button>
             {onClose && (
               <button type="button" className="settings-close-btn" onClick={handleClose} aria-label="关闭设置">
                 <X size={18} />
@@ -2542,6 +2625,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
             {activeTab === 'models' && renderModelsTab()}
             {activeTab === 'cache' && renderCacheTab()}
             {activeTab === 'api' && renderApiTab()}
+            {activeTab === 'updates' && renderUpdatesTab()}
             {activeTab === 'analytics' && renderAnalyticsTab()}
             {activeTab === 'security' && renderSecurityTab()}
             {activeTab === 'about' && renderAboutTab()}

src/services/config.ts

@@ -58,6 +58,7 @@ export const CONFIG_KEYS = {
 
   // 更新
   IGNORED_UPDATE_VERSION: 'ignoredUpdateVersion',
+  UPDATE_CHANNEL: 'updateChannel',
 
   // 通知
   NOTIFICATION_ENABLED: 'notificationEnabled',
@@ -96,6 +97,7 @@ export interface ExportDefaultMediaConfig {
 
 export type WindowCloseBehavior = 'ask' | 'tray' | 'quit'
 export type QuoteLayout = 'quote-top' | 'quote-bottom'
+export type UpdateChannel = 'stable' | 'preview' | 'dev'
 
 const DEFAULT_EXPORT_MEDIA_CONFIG: ExportDefaultMediaConfig = {
   images: true,
@@ -1381,6 +1383,18 @@ export async function setIgnoredUpdateVersion(version: string): Promise<void> {
   await config.set(CONFIG_KEYS.IGNORED_UPDATE_VERSION, version)
 }
 
+// 获取更新渠道（空值/auto 视为未显式设置，交由安装包类型决定默认渠道）
+export async function getUpdateChannel(): Promise<UpdateChannel | null> {
+  const value = await config.get(CONFIG_KEYS.UPDATE_CHANNEL)
+  if (value === 'stable' || value === 'preview' || value === 'dev') return value
+  return null
+}
+
+// 设置更新渠道
+export async function setUpdateChannel(channel: UpdateChannel): Promise<void> {
+  await config.set(CONFIG_KEYS.UPDATE_CHANNEL, channel)
+}
+
 // 获取通知开关
 export async function getNotificationEnabled(): Promise<boolean> {
   const value = await config.get(CONFIG_KEYS.NOTIFICATION_ENABLED)