feat: cow desktop first version

2026-07-17 11:07:11 +08:00 · 2026-03-21 16:11:05 +08:00
parent b8b57e34ff
commit 3bc6e89b74
34 changed files with 12765 additions and 0 deletions
--- a/desktop/src/main/index.ts
+++ b/desktop/src/main/index.ts
@@ -0,0 +1,184 @@
+import { app, BrowserWindow, shell, ipcMain, dialog, nativeImage } from 'electron'
+import path from 'path'
+import fs from 'fs'
+import http from 'http'
+import { PythonBackend } from './python-manager'
+
+let mainWindow: BrowserWindow | null = null
+let pythonBackend: PythonBackend | null = null
+
+const isDev = !app.isPackaged
+const VITE_DEV_PORTS = [5173, 5174, 5175, 5176]
+
+function probePort(port: number): Promise<boolean> {
+  return new Promise((resolve) => {
+    const req = http.get(`http://localhost:${port}`, (res) => {
+      resolve(res.statusCode !== undefined)
+    })
+    req.on('error', () => resolve(false))
+    req.setTimeout(500, () => { req.destroy(); resolve(false) })
+  })
+}
+
+async function findViteDevServer(): Promise<string | null> {
+  for (const port of VITE_DEV_PORTS) {
+    if (await probePort(port)) {
+      return `http://localhost:${port}`
+    }
+  }
+  return null
+}
+
+function getIconPath(ext: string = 'png'): string | undefined {
+  const iconFile = `icon.${ext}`
+  const iconPath = isDev
+    ? path.resolve(__dirname, '../../resources', iconFile)
+    : path.join(process.resourcesPath, iconFile)
+  if (fs.existsSync(iconPath)) return iconPath
+  return undefined
+}
+
+function createWindow() {
+  mainWindow = new BrowserWindow({
+    width: 1280,
+    height: 800,
+    minWidth: 900,
+    minHeight: 600,
+    titleBarStyle: 'hiddenInset',
+    trafficLightPosition: { x: 12, y: 18 },
+    backgroundColor: '#111111',
+    icon: getIconPath(),
+    show: false,
+    webPreferences: {
+      preload: path.join(__dirname, 'preload.js'),
+      contextIsolation: true,
+      nodeIntegration: false,
+    },
+  })
+
+  const rendererHtml = path.join(__dirname, '../renderer/index.html')
+
+  if (isDev) {
+    findViteDevServer().then((devUrl) => {
+      if (devUrl) {
+        console.log(`[Electron] Loading Vite dev server: ${devUrl}`)
+        mainWindow?.loadURL(devUrl)
+        mainWindow?.webContents.openDevTools()
+      } else if (fs.existsSync(rendererHtml)) {
+        console.log('[Electron] Vite dev server not found, loading built files')
+        mainWindow?.loadFile(rendererHtml)
+      } else {
+        console.error('[Electron] No renderer available. Run "npm run build:renderer" first.')
+      }
+    })
+  } else {
+    mainWindow.loadFile(rendererHtml)
+  }
+
+  mainWindow.once('ready-to-show', () => {
+    mainWindow?.show()
+  })
+
+  mainWindow.webContents.setWindowOpenHandler(({ url }) => {
+    shell.openExternal(url)
+    return { action: 'deny' }
+  })
+
+  mainWindow.on('closed', () => {
+    mainWindow = null
+  })
+}
+
+function getBackendPath(): string {
+  if (isDev) {
+    return path.resolve(__dirname, '../../..')
+  }
+  return path.join(process.resourcesPath, 'backend')
+}
+
+async function startBackend() {
+  const backendPath = getBackendPath()
+  pythonBackend = new PythonBackend(backendPath)
+
+  pythonBackend.on('ready', (port: number) => {
+    mainWindow?.webContents.send('backend-status', { status: 'ready', port })
+  })
+
+  pythonBackend.on('error', (error: string) => {
+    mainWindow?.webContents.send('backend-status', { status: 'error', error })
+  })
+
+  pythonBackend.on('log', (line: string) => {
+    mainWindow?.webContents.send('backend-log', line)
+  })
+
+  await pythonBackend.start()
+}
+
+function setupIPC() {
+  ipcMain.handle('get-backend-port', () => {
+    return pythonBackend?.getPort() ?? null
+  })
+
+  ipcMain.handle('get-backend-status', () => {
+    return pythonBackend?.getStatus() ?? 'stopped'
+  })
+
+  ipcMain.handle('restart-backend', async () => {
+    await pythonBackend?.restart()
+    return true
+  })
+
+  ipcMain.handle('select-directory', async () => {
+    const result = await dialog.showOpenDialog({
+      properties: ['openDirectory'],
+    })
+    return result.canceled ? null : result.filePaths[0]
+  })
+
+  ipcMain.handle('select-file', async (_event, filters?: Electron.FileFilter[]) => {
+    const result = await dialog.showOpenDialog({
+      properties: ['openFile'],
+      filters: filters || [{ name: 'All Files', extensions: ['*'] }],
+    })
+    return result.canceled ? null : result.filePaths[0]
+  })
+}
+
+app.whenReady().then(async () => {
+  // Set Dock icon on macOS (PNG is most reliable for nativeImage)
+  if (process.platform === 'darwin') {
+    const pngPath = getIconPath('png')
+    if (pngPath) {
+      const icon = nativeImage.createFromPath(pngPath)
+      if (!icon.isEmpty()) {
+        app.dock.setIcon(icon)
+        console.log('[Electron] Dock icon set:', pngPath)
+      } else {
+        console.warn('[Electron] Dock icon loaded but empty:', pngPath)
+      }
+    } else {
+      console.warn('[Electron] Dock icon not found in resources/')
+    }
+  }
+
+  setupIPC()
+  createWindow()
+  await startBackend()
+
+  app.on('activate', () => {
+    if (BrowserWindow.getAllWindows().length === 0) {
+      createWindow()
+    }
+  })
+})
+
+app.on('window-all-closed', () => {
+  if (process.platform !== 'darwin') {
+    app.quit()
+  }
+})
+
+app.on('before-quit', () => {
+  pythonBackend?.stop()
+})
--- a/desktop/src/main/preload.ts
+++ b/desktop/src/main/preload.ts
@@ -0,0 +1,19 @@
+import { contextBridge, ipcRenderer } from 'electron'
+
+contextBridge.exposeInMainWorld('electronAPI', {
+  getBackendPort: () => ipcRenderer.invoke('get-backend-port'),
+  getBackendStatus: () => ipcRenderer.invoke('get-backend-status'),
+  restartBackend: () => ipcRenderer.invoke('restart-backend'),
+  selectDirectory: () => ipcRenderer.invoke('select-directory'),
+  selectFile: (filters?: Electron.FileFilter[]) => ipcRenderer.invoke('select-file', filters),
+
+  onBackendStatus: (callback: (data: { status: string; port?: number; error?: string }) => void) => {
+    ipcRenderer.on('backend-status', (_event, data) => callback(data))
+  },
+
+  onBackendLog: (callback: (line: string) => void) => {
+    ipcRenderer.on('backend-log', (_event, line) => callback(line))
+  },
+
+  platform: process.platform,
+})
--- a/desktop/src/main/python-manager.ts
+++ b/desktop/src/main/python-manager.ts
@@ -0,0 +1,196 @@
+import { ChildProcess, spawn } from 'child_process'
+import { EventEmitter } from 'events'
+import path from 'path'
+import fs from 'fs'
+import http from 'http'
+
+export class PythonBackend extends EventEmitter {
+  private process: ChildProcess | null = null
+  private backendPath: string
+  private port: number = 9899
+  private status: 'stopped' | 'starting' | 'ready' | 'error' = 'stopped'
+
+  constructor(backendPath: string) {
+    super()
+    this.backendPath = backendPath
+  }
+
+  getPort(): number {
+    return this.port
+  }
+
+  getStatus(): string {
+    return this.status
+  }
+
+  private findPython(): string {
+    const venvPaths = [
+      path.join(this.backendPath, '.venv', 'bin', 'python'),
+      path.join(this.backendPath, '.venv', 'Scripts', 'python.exe'),
+      path.join(this.backendPath, 'venv', 'bin', 'python'),
+      path.join(this.backendPath, 'venv', 'Scripts', 'python.exe'),
+    ]
+
+    for (const p of venvPaths) {
+      if (fs.existsSync(p)) {
+        return p
+      }
+    }
+
+    return process.platform === 'win32' ? 'python' : 'python3'
+  }
+
+  private readPort(): number {
+    try {
+      const configPath = path.join(this.backendPath, 'config.json')
+      if (fs.existsSync(configPath)) {
+        const config = JSON.parse(fs.readFileSync(configPath, 'utf-8'))
+        if (config.web_port) {
+          return config.web_port
+        }
+      }
+    } catch {
+      // ignore
+    }
+    return 9899
+  }
+
+  async start(): Promise<void> {
+    if (this.status === 'ready' || this.status === 'starting') {
+      return
+    }
+
+    this.status = 'starting'
+    this.port = this.readPort()
+
+    const alreadyRunning = await this.probeHealth()
+    if (alreadyRunning) {
+      this.status = 'ready'
+      this.emit('log', `Backend already running on port ${this.port}`)
+      this.emit('ready', this.port)
+      return
+    }
+
+    const pythonPath = this.findPython()
+    const appPath = path.join(this.backendPath, 'app.py')
+
+    if (!fs.existsSync(appPath)) {
+      this.status = 'error'
+      this.emit('error', `app.py not found at ${appPath}`)
+      return
+    }
+
+    this.emit('log', `Starting Python backend: ${pythonPath} ${appPath}`)
+
+    this.process = spawn(pythonPath, [appPath], {
+      cwd: this.backendPath,
+      env: { ...process.env, PYTHONUNBUFFERED: '1' },
+      stdio: ['pipe', 'pipe', 'pipe'],
+    })
+
+    this.process.stdout?.on('data', (data: Buffer) => {
+      const lines = data.toString().split('\n').filter(Boolean)
+      for (const line of lines) {
+        this.emit('log', line)
+      }
+    })
+
+    this.process.stderr?.on('data', (data: Buffer) => {
+      const lines = data.toString().split('\n').filter(Boolean)
+      for (const line of lines) {
+        this.emit('log', line)
+      }
+    })
+
+    this.process.on('exit', (code) => {
+      this.status = 'stopped'
+      this.emit('log', `Python process exited with code ${code}`)
+      if (code !== 0 && code !== null) {
+        this.emit('error', `Python process exited with code ${code}`)
+      }
+    })
+
+    this.process.on('error', (err) => {
+      this.status = 'error'
+      this.emit('error', `Failed to start Python: ${err.message}`)
+    })
+
+    await this.waitForReady()
+  }
+
+  private probeHealth(): Promise<boolean> {
+    return new Promise((resolve) => {
+      const req = http.get(`http://127.0.0.1:${this.port}/config`, (res) => {
+        resolve(res.statusCode === 200)
+      })
+      req.on('error', () => resolve(false))
+      req.setTimeout(2000, () => { req.destroy(); resolve(false) })
+    })
+  }
+
+  private waitForReady(): Promise<void> {
+    return new Promise((resolve) => {
+      const maxAttempts = 120
+      let attempts = 0
+
+      const check = () => {
+        attempts++
+        if (attempts % 10 === 0) {
+          this.emit('log', `Waiting for backend... (${attempts}s)`)
+        }
+
+        const req = http.get(`http://127.0.0.1:${this.port}/config`, (res) => {
+          if (res.statusCode === 200) {
+            this.status = 'ready'
+            this.emit('log', `Backend ready on port ${this.port} after ${attempts}s`)
+            this.emit('ready', this.port)
+            resolve()
+          } else {
+            retry()
+          }
+        })
+
+        req.on('error', () => retry())
+        req.setTimeout(2000, () => {
+          req.destroy()
+          retry()
+        })
+      }
+
+      const retry = () => {
+        if (this.status === 'stopped') {
+          resolve()
+          return
+        }
+        if (attempts >= maxAttempts) {
+          this.status = 'error'
+          this.emit('error', `Backend failed to start within ${maxAttempts} seconds`)
+          resolve()
+          return
+        }
+        setTimeout(check, 1000)
+      }
+
+      setTimeout(check, 2000)
+    })
+  }
+
+  stop(): void {
+    if (this.process) {
+      this.process.kill('SIGTERM')
+      setTimeout(() => {
+        if (this.process && !this.process.killed) {
+          this.process.kill('SIGKILL')
+        }
+      }, 5000)
+      this.process = null
+    }
+    this.status = 'stopped'
+  }
+
+  async restart(): Promise<void> {
+    this.stop()
+    await new Promise((resolve) => setTimeout(resolve, 2000))
+    await this.start()
+  }
+}
--- a/desktop/src/renderer/index.html
+++ b/desktop/src/renderer/index.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html lang="zh" class="dark">
+<head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>CowAgent</title>
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap" rel="stylesheet">
+    <script>
+    (function() {
+        var theme = localStorage.getItem('cow_theme') || 'dark';
+        if (theme === 'dark') document.documentElement.classList.add('dark');
+        else document.documentElement.classList.remove('dark');
+    })();
+    </script>
+    <style>
+      body { margin: 0; }
+    </style>
+</head>
+<body class="h-screen overflow-hidden">
+    <div id="root"></div>
+    <script type="module" src="./src/main.tsx"></script>
+</body>
+</html>
--- a/desktop/src/renderer/src/App.tsx
+++ b/desktop/src/renderer/src/App.tsx
@@ -0,0 +1,116 @@
+import React, { useState, useCallback } from 'react'
+import { Routes, Route, useLocation } from 'react-router-dom'
+import Sidebar from './components/Sidebar'
+import StatusScreen from './components/StatusScreen'
+import { useTheme } from './hooks/useTheme'
+import { useBackend } from './hooks/useBackend'
+import { t, getLang, setLang, Lang } from './i18n'
+import ChatPage from './pages/ChatPage'
+import ConfigPage from './pages/ConfigPage'
+import SkillsPage from './pages/SkillsPage'
+import MemoryPage from './pages/MemoryPage'
+import ChannelsPage from './pages/ChannelsPage'
+import TasksPage from './pages/TasksPage'
+import LogsPage from './pages/LogsPage'
+
+const APP_VERSION = 'v2.0.3'
+
+const VIEW_META: Record<string, { group: string; page: string }> = {
+  '/': { group: 'nav_chat', page: 'menu_chat' },
+  '/config': { group: 'nav_manage', page: 'menu_config' },
+  '/skills': { group: 'nav_manage', page: 'menu_skills' },
+  '/memory': { group: 'nav_manage', page: 'menu_memory' },
+  '/channels': { group: 'nav_manage', page: 'menu_channels' },
+  '/tasks': { group: 'nav_manage', page: 'menu_tasks' },
+  '/logs': { group: 'nav_monitor', page: 'menu_logs' },
+}
+
+const App: React.FC = () => {
+  const { theme, toggleTheme } = useTheme()
+  const backend = useBackend()
+  const location = useLocation()
+  const [, forceUpdate] = useState(0)
+
+  const toggleLanguage = useCallback(() => {
+    const next: Lang = getLang() === 'zh' ? 'en' : 'zh'
+    setLang(next)
+    forceUpdate((n) => n + 1)
+  }, [])
+
+  if (backend.status !== 'ready') {
+    return <StatusScreen status={backend.status} error={backend.error} onRetry={backend.restart} />
+  }
+
+  const meta = VIEW_META[location.pathname] || VIEW_META['/']
+
+  return (
+    <div className="flex h-screen overflow-hidden">
+      <Sidebar version={APP_VERSION} />
+      <div className="flex-1 flex flex-col min-w-0 h-screen">
+        {/* Top Header */}
+        <header className="h-[52px] flex items-center gap-3 px-4 border-b border-slate-200 dark:border-white/10 bg-white dark:bg-[#1A1A1A] flex-shrink-0 z-10 titlebar-drag">
+          {/* Breadcrumb */}
+          <div className="flex items-center gap-2 text-sm min-w-0 titlebar-no-drag">
+            <span className="text-slate-400 dark:text-slate-500 truncate">{t(meta.group)}</span>
+            <i className="fas fa-chevron-right text-[10px] text-slate-300 dark:text-slate-600" />
+            <span className="font-medium text-slate-700 dark:text-slate-200 truncate">{t(meta.page)}</span>
+          </div>
+
+          <div className="flex-1" />
+
+          {/* Language Toggle */}
+          <button
+            onClick={toggleLanguage}
+            className="flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-sm font-medium text-slate-500 dark:text-slate-400 hover:bg-slate-100 dark:hover:bg-white/10 cursor-pointer transition-colors duration-150 titlebar-no-drag"
+          >
+            <i className="fas fa-globe text-xs" />
+            <span>{getLang() === 'zh' ? 'EN' : '中'}</span>
+          </button>
+
+          {/* Theme Toggle */}
+          <button
+            onClick={toggleTheme}
+            className="p-2 rounded-lg text-slate-500 dark:text-slate-400 hover:bg-slate-100 dark:hover:bg-white/10 cursor-pointer transition-colors duration-150 titlebar-no-drag"
+          >
+            <i className={`fas ${theme === 'dark' ? 'fa-sun' : 'fa-moon'}`} />
+          </button>
+
+          {/* Docs */}
+          <a
+            href="https://docs.cowagent.ai"
+            target="_blank"
+            rel="noopener noreferrer"
+            className="p-2 rounded-lg text-slate-500 dark:text-slate-400 hover:bg-slate-100 dark:hover:bg-white/10 cursor-pointer transition-colors duration-150 titlebar-no-drag"
+          >
+            <i className="fas fa-book text-base" />
+          </a>
+
+          {/* GitHub */}
+          <a
+            href="https://github.com/zhayujie/chatgpt-on-wechat"
+            target="_blank"
+            rel="noopener noreferrer"
+            className="p-2 rounded-lg text-slate-500 dark:text-slate-400 hover:bg-slate-100 dark:hover:bg-white/10 cursor-pointer transition-colors duration-150 titlebar-no-drag"
+          >
+            <i className="fab fa-github text-lg" />
+          </a>
+        </header>
+
+        {/* Content Area */}
+        <div className="flex-1 flex flex-col min-h-0 overflow-hidden">
+          <Routes>
+            <Route path="/" element={<ChatPage baseUrl={backend.baseUrl} />} />
+            <Route path="/config" element={<ConfigPage baseUrl={backend.baseUrl} />} />
+            <Route path="/skills" element={<SkillsPage baseUrl={backend.baseUrl} />} />
+            <Route path="/memory" element={<MemoryPage baseUrl={backend.baseUrl} />} />
+            <Route path="/channels" element={<ChannelsPage baseUrl={backend.baseUrl} />} />
+            <Route path="/tasks" element={<TasksPage baseUrl={backend.baseUrl} />} />
+            <Route path="/logs" element={<LogsPage baseUrl={backend.baseUrl} />} />
+          </Routes>
+        </div>
+      </div>
+    </div>
+  )
+}
+
+export default App
--- a/desktop/src/renderer/src/api/client.ts
+++ b/desktop/src/renderer/src/api/client.ts
@@ -0,0 +1,175 @@
+import type { ConfigData, ChannelInfo, SkillInfo, ToolInfo, MemoryItem, SchedulerTask, Attachment } from '../types'
+
+class ApiClient {
+  private baseUrl: string = 'http://127.0.0.1:9899'
+
+  setBaseUrl(url: string) {
+    this.baseUrl = url
+  }
+
+  private async request<T>(path: string, options?: RequestInit): Promise<T> {
+    const res = await fetch(`${this.baseUrl}${path}`, {
+      ...options,
+      headers: {
+        'Content-Type': 'application/json',
+        ...options?.headers,
+      },
+    })
+
+    if (!res.ok) {
+      throw new Error(`HTTP ${res.status}: ${res.statusText}`)
+    }
+
+    return res.json()
+  }
+
+  // Chat
+  async sendMessage(
+    sessionId: string,
+    message: string,
+    stream: boolean = true,
+    attachments?: Attachment[]
+  ): Promise<{ status: string; request_id: string; stream: boolean }> {
+    return this.request('/message', {
+      method: 'POST',
+      body: JSON.stringify({ session_id: sessionId, message, stream, attachments }),
+    })
+  }
+
+  async poll(sessionId: string): Promise<{
+    status: string
+    has_content: boolean
+    content?: string
+    request_id?: string
+    timestamp?: number
+  }> {
+    return this.request('/poll', {
+      method: 'POST',
+      body: JSON.stringify({ session_id: sessionId }),
+    })
+  }
+
+  createSSEStream(requestId: string): EventSource {
+    return new EventSource(`${this.baseUrl}/stream?request_id=${requestId}`)
+  }
+
+  async uploadFile(file: File, sessionId?: string): Promise<{
+    status: string
+    file_path: string
+    file_name: string
+    file_type: string
+    preview_url: string
+  }> {
+    const formData = new FormData()
+    formData.append('file', file)
+    if (sessionId) {
+      formData.append('session_id', sessionId)
+    }
+
+    const res = await fetch(`${this.baseUrl}/upload`, {
+      method: 'POST',
+      body: formData,
+    })
+
+    return res.json()
+  }
+
+  // Config
+  async getConfig(): Promise<ConfigData> {
+    const data = await this.request<{ status: string } & ConfigData>('/config')
+    return data
+  }
+
+  async updateConfig(updates: Partial<ConfigData>): Promise<{ status: string; applied: Record<string, unknown> }> {
+    return this.request('/config', {
+      method: 'POST',
+      body: JSON.stringify({ updates }),
+    })
+  }
+
+  // Channels
+  async getChannels(): Promise<ChannelInfo[]> {
+    const data = await this.request<{ status: string; channels: ChannelInfo[] }>('/api/channels')
+    return data.channels
+  }
+
+  async channelAction(
+    action: 'save' | 'connect' | 'disconnect',
+    channel: string,
+    config?: Record<string, unknown>
+  ): Promise<{ status: string }> {
+    return this.request('/api/channels', {
+      method: 'POST',
+      body: JSON.stringify({ action, channel, config }),
+    })
+  }
+
+  // Tools & Skills
+  async getTools(): Promise<ToolInfo[]> {
+    const data = await this.request<{ status: string; tools: ToolInfo[] }>('/api/tools')
+    return data.tools
+  }
+
+  async getSkills(): Promise<SkillInfo[]> {
+    const data = await this.request<{ status: string; skills: SkillInfo[] }>('/api/skills')
+    return data.skills
+  }
+
+  async toggleSkill(name: string, action: 'open' | 'close'): Promise<{ status: string }> {
+    return this.request('/api/skills', {
+      method: 'POST',
+      body: JSON.stringify({ action, name }),
+    })
+  }
+
+  // Memory
+  async getMemoryList(page: number = 1, pageSize: number = 20): Promise<{ list: MemoryItem[]; total: number }> {
+    const data = await this.request<{ status: string; list: MemoryItem[]; total: number }>(
+      `/api/memory?page=${page}&page_size=${pageSize}`
+    )
+    return { list: data.list, total: data.total }
+  }
+
+  async getMemoryContent(filename: string): Promise<string> {
+    const data = await this.request<{ status: string; content: string }>(
+      `/api/memory/content?filename=${encodeURIComponent(filename)}`
+    )
+    return data.content
+  }
+
+  // Scheduler
+  async getSchedulerTasks(): Promise<SchedulerTask[]> {
+    const data = await this.request<{ status: string; tasks: SchedulerTask[] }>('/api/scheduler')
+    return data.tasks
+  }
+
+  // History
+  async getHistory(
+    sessionId: string,
+    page: number = 1,
+    pageSize: number = 20
+  ): Promise<{ messages: ChatMessage[]; has_more: boolean }> {
+    const data = await this.request<{ status: string; messages: ChatMessage[]; has_more: boolean }>(
+      `/api/history?session_id=${sessionId}&page=${page}&page_size=${pageSize}`
+    )
+    return { messages: data.messages, has_more: data.has_more }
+  }
+
+  // Logs SSE
+  createLogStream(): EventSource {
+    return new EventSource(`${this.baseUrl}/api/logs`)
+  }
+
+  getFileUrl(previewUrl: string): string {
+    return `${this.baseUrl}${previewUrl}`
+  }
+}
+
+interface ChatMessage {
+  role: string
+  content: string
+  timestamp: number
+}
+
+export const apiClient = new ApiClient()
+export default apiClient
--- a/desktop/src/renderer/src/components/ChatInput.tsx
+++ b/desktop/src/renderer/src/components/ChatInput.tsx
@@ -0,0 +1,158 @@
+import React, { useState, useRef, useCallback } from 'react'
+import { t } from '../i18n'
+import type { Attachment } from '../types'
+import apiClient from '../api/client'
+
+interface ChatInputProps {
+  onSend: (message: string, attachments: Attachment[]) => void
+  onNewChat: () => void
+  disabled: boolean
+  sessionId: string
+}
+
+const ChatInput: React.FC<ChatInputProps> = ({ onSend, onNewChat, disabled, sessionId }) => {
+  const [text, setText] = useState('')
+  const [attachments, setAttachments] = useState<Attachment[]>([])
+  const [uploading, setUploading] = useState(false)
+  const textareaRef = useRef<HTMLTextAreaElement>(null)
+  const fileInputRef = useRef<HTMLInputElement>(null)
+
+  const handleSubmit = useCallback(() => {
+    const trimmed = text.trim()
+    if (!trimmed && attachments.length === 0) return
+    if (disabled) return
+
+    onSend(trimmed, attachments)
+    setText('')
+    setAttachments([])
+
+    if (textareaRef.current) {
+      textareaRef.current.style.height = '42px'
+    }
+  }, [text, attachments, disabled, onSend])
+
+  const handleKeyDown = (e: React.KeyboardEvent) => {
+    if (e.key === 'Enter' && !e.shiftKey && !e.ctrlKey) {
+      e.preventDefault()
+      handleSubmit()
+    }
+  }
+
+  const handleTextChange = (e: React.ChangeEvent<HTMLTextAreaElement>) => {
+    setText(e.target.value)
+    const el = e.target
+    el.style.height = '42px'
+    el.style.height = Math.min(el.scrollHeight, 180) + 'px'
+  }
+
+  const handleFileSelect = async (e: React.ChangeEvent<HTMLInputElement>) => {
+    const files = e.target.files
+    if (!files || files.length === 0) return
+
+    setUploading(true)
+    try {
+      for (const file of Array.from(files)) {
+        const result = await apiClient.uploadFile(file, sessionId)
+        if (result.status === 'success') {
+          setAttachments((prev) => [
+            ...prev,
+            {
+              file_path: result.file_path,
+              file_name: result.file_name,
+              file_type: result.file_type as 'image' | 'video' | 'file',
+              preview_url: result.preview_url,
+            },
+          ])
+        }
+      }
+    } catch (err) {
+      console.error('Upload failed:', err)
+    } finally {
+      setUploading(false)
+      if (fileInputRef.current) fileInputRef.current.value = ''
+    }
+  }
+
+  const removeAttachment = (index: number) => {
+    setAttachments((prev) => prev.filter((_, i) => i !== index))
+  }
+
+  return (
+    <div className="flex-shrink-0 border-t border-slate-200 dark:border-white/10 bg-white dark:bg-[#1A1A1A] px-4 py-3">
+      <div className="max-w-3xl mx-auto">
+        {/* Attachment preview */}
+        {attachments.length > 0 && (
+          <div className="flex flex-wrap gap-2 mb-2">
+            {attachments.map((att, i) => (
+              <div key={i} className="relative">
+                {att.file_type === 'image' && att.preview_url ? (
+                  <div className="relative">
+                    <img src={apiClient.getFileUrl(att.preview_url)} alt={att.file_name}
+                         className="w-16 h-16 rounded-lg object-cover border border-slate-200 dark:border-white/10" />
+                    <button onClick={() => removeAttachment(i)}
+                            className="absolute -top-1 -right-1 w-[18px] h-[18px] rounded-full bg-red-500 text-white flex items-center justify-center cursor-pointer">
+                      <i className="fas fa-times text-[8px]" />
+                    </button>
+                  </div>
+                ) : (
+                  <div className="flex items-center gap-1.5 px-2.5 py-1.5 bg-slate-100 dark:bg-white/5 border border-slate-200 dark:border-white/10 rounded-lg text-xs text-slate-500 dark:text-slate-400 max-w-[180px] relative pr-7">
+                    <i className="fas fa-file text-[10px]" />
+                    <span className="truncate">{att.file_name}</span>
+                    <button onClick={() => removeAttachment(i)}
+                            className="absolute -top-1 -right-1 w-[18px] h-[18px] rounded-full bg-red-500 text-white flex items-center justify-center cursor-pointer">
+                      <i className="fas fa-times text-[8px]" />
+                    </button>
+                  </div>
+                )}
+              </div>
+            ))}
+          </div>
+        )}
+
+        <div className="flex items-center gap-2">
+          <div className="flex items-center flex-shrink-0">
+            <button
+              onClick={onNewChat}
+              className="w-9 h-10 flex items-center justify-center rounded-lg text-slate-400 hover:text-primary-500 hover:bg-primary-50 dark:hover:bg-primary-900/20 cursor-pointer transition-colors duration-150"
+              title="New Chat"
+            >
+              <i className="fas fa-plus text-base" />
+            </button>
+            <button
+              onClick={() => fileInputRef.current?.click()}
+              disabled={uploading}
+              className="w-9 h-10 flex items-center justify-center rounded-lg text-slate-400 hover:text-primary-500 hover:bg-primary-50 dark:hover:bg-primary-900/20 cursor-pointer transition-colors duration-150"
+              title="Attach file"
+            >
+              <i className="fas fa-paperclip text-base" />
+            </button>
+          </div>
+          <input ref={fileInputRef} type="file" className="hidden" multiple onChange={handleFileSelect}
+                 accept="image/*,.pdf,.doc,.docx,.xls,.xlsx,.ppt,.pptx,.txt,.csv,.json,.xml,.zip,.py,.js,.ts,.java,.c,.cpp,.go,.rs,.md" />
+
+          <textarea
+            ref={textareaRef}
+            id="chat-input"
+            value={text}
+            onChange={handleTextChange}
+            onKeyDown={handleKeyDown}
+            placeholder={t('input_placeholder')}
+            disabled={disabled}
+            rows={1}
+            className="flex-1 min-w-0 px-4 py-[10px] rounded-xl border border-slate-200 dark:border-slate-600 bg-slate-50 dark:bg-white/5 text-slate-800 dark:text-slate-100 placeholder:text-slate-400 dark:placeholder:text-slate-500 focus:outline-none focus:ring-0 focus:border-primary-600 text-sm leading-relaxed"
+          />
+
+          <button
+            onClick={handleSubmit}
+            disabled={disabled || (!text.trim() && attachments.length === 0)}
+            className="flex-shrink-0 w-10 h-10 flex items-center justify-center rounded-lg bg-primary-400 text-white hover:bg-primary-500 disabled:bg-slate-300 dark:disabled:bg-slate-600 disabled:cursor-not-allowed cursor-pointer transition-colors duration-150"
+          >
+            <i className="fas fa-paper-plane text-sm" />
+          </button>
+        </div>
+      </div>
+    </div>
+  )
+}
+
+export default ChatInput
--- a/desktop/src/renderer/src/components/MessageBubble.tsx
+++ b/desktop/src/renderer/src/components/MessageBubble.tsx
@@ -0,0 +1,160 @@
+import React, { useState } from 'react'
+import ReactMarkdown from 'react-markdown'
+import { Prism as SyntaxHighlighter } from 'react-syntax-highlighter'
+import { oneDark, oneLight } from 'react-syntax-highlighter/dist/esm/styles/prism'
+import type { ChatMessage, ToolCall } from '../types'
+
+interface MessageBubbleProps {
+  message: ChatMessage
+  theme: 'light' | 'dark'
+  baseUrl: string
+}
+
+const ToolStep: React.FC<{ tool: ToolCall; theme: 'light' | 'dark' }> = ({ tool, theme }) => {
+  const [expanded, setExpanded] = useState(false)
+  const isRunning = tool.type === 'tool_start' && !tool.status
+  const isSuccess = tool.status === 'success'
+
+  const iconClass = isRunning
+    ? 'fas fa-cog fa-spin text-slate-400'
+    : isSuccess
+      ? 'fas fa-check text-primary-400'
+      : 'fas fa-times text-red-400'
+
+  return (
+    <div className="border-b border-slate-100 dark:border-white/5 last:border-0">
+      <div
+        className="tool-header flex items-center gap-2 px-3 py-2"
+        onClick={() => setExpanded(!expanded)}
+      >
+        <i className={`${iconClass} text-xs w-4 text-center`} />
+        <span className={`text-sm font-medium flex-1 ${tool.status === 'failed' ? 'text-red-400' : 'text-slate-700 dark:text-slate-300'}`}>
+          {tool.tool}
+        </span>
+        {tool.execution_time !== undefined && (
+          <span className="text-xs text-slate-400">{tool.execution_time.toFixed(1)}s</span>
+        )}
+        <i className={`fas fa-chevron-right text-[10px] text-slate-400 transition-transform duration-200 ${expanded ? 'rotate-90' : ''}`} />
+      </div>
+      {expanded && (
+        <div className="tool-detail rounded-lg mx-3 mb-3 p-3 space-y-2">
+          {tool.arguments && (
+            <div>
+              <div className="text-xs font-semibold text-slate-500 dark:text-slate-400 mb-1">Input</div>
+              <pre className="text-xs overflow-x-auto whitespace-pre-wrap max-h-[200px] overflow-y-auto text-slate-600 dark:text-slate-400">
+                {JSON.stringify(tool.arguments, null, 2)}
+              </pre>
+            </div>
+          )}
+          {tool.result && (
+            <div>
+              <div className="text-xs font-semibold text-slate-500 dark:text-slate-400 mb-1">Output</div>
+              <pre className="text-xs overflow-x-auto whitespace-pre-wrap max-h-[200px] overflow-y-auto text-slate-600 dark:text-slate-400">
+                {tool.result.length > 1000 ? tool.result.slice(0, 1000) + '...' : tool.result}
+              </pre>
+            </div>
+          )}
+        </div>
+      )}
+    </div>
+  )
+}
+
+const MessageBubble: React.FC<MessageBubbleProps> = ({ message, theme, baseUrl }) => {
+  const isUser = message.role === 'user'
+  const [copiedId, setCopiedId] = useState<string | null>(null)
+
+  const handleCopy = (text: string, id: string) => {
+    navigator.clipboard.writeText(text)
+    setCopiedId(id)
+    setTimeout(() => setCopiedId(null), 2000)
+  }
+
+  if (isUser) {
+    return (
+      <div className="flex justify-end px-4 sm:px-6 py-3">
+        <div className="max-w-[75%] sm:max-w-[60%]">
+          {/* User attachments */}
+          {message.attachments && message.attachments.length > 0 && (
+            <div className="flex flex-wrap gap-2 mb-2 justify-end">
+              {message.attachments.map((att, i) => (
+                <div key={i}>
+                  {att.file_type === 'image' && att.preview_url ? (
+                    <img src={`${baseUrl}${att.preview_url}`} alt={att.file_name}
+                         className="max-w-[200px] max-h-[160px] rounded-lg object-cover" />
+                  ) : (
+                    <div className="px-3 py-2 bg-slate-100 dark:bg-white/5 rounded-lg text-sm text-slate-500">
+                      <i className="fas fa-file text-xs mr-1.5" />{att.file_name}
+                    </div>
+                  )}
+                </div>
+              ))}
+            </div>
+          )}
+          <div className="bg-primary-400 text-white rounded-2xl px-4 py-2.5">
+            <div className="msg-content text-sm whitespace-pre-wrap">{message.content}</div>
+          </div>
+        </div>
+      </div>
+    )
+  }
+
+  // Assistant message
+  return (
+    <div className="flex gap-3 px-4 sm:px-6 py-3">
+      <img src="./logo.jpg" alt="CowAgent" className="w-8 h-8 rounded-lg flex-shrink-0 mt-0.5" />
+      <div className="flex-1 min-w-0">
+        <div className="bg-white dark:bg-[#1A1A1A] border border-slate-200 dark:border-white/10 rounded-2xl overflow-hidden">
+          {/* Agent tool steps */}
+          {message.toolCalls && message.toolCalls.length > 0 && (
+            <div className="border-b border-slate-200 dark:border-white/8">
+              {message.toolCalls.map((tool, i) => (
+                <ToolStep key={i} tool={tool} theme={theme} />
+              ))}
+            </div>
+          )}
+
+          {/* Answer content */}
+          <div className="px-4 py-3 msg-content text-sm text-slate-800 dark:text-slate-200">
+            <ReactMarkdown
+              components={{
+                code({ className, children, ...props }) {
+                  const match = /language-(\w+)/.exec(className || '')
+                  const codeStr = String(children).replace(/\n$/, '')
+                  if (match) {
+                    const codeId = `code-${message.id}-${match[1]}-${codeStr.length}`
+                    return (
+                      <div className="relative group">
+                        <button
+                          onClick={() => handleCopy(codeStr, codeId)}
+                          className="absolute top-2 right-2 p-1.5 rounded-md bg-slate-700/50 hover:bg-slate-700/80 text-slate-300 opacity-0 group-hover:opacity-100 transition-opacity cursor-pointer"
+                        >
+                          <i className={`fas ${copiedId === codeId ? 'fa-check' : 'fa-copy'} text-xs`} />
+                        </button>
+                        <SyntaxHighlighter
+                          style={theme === 'dark' ? oneDark : oneLight}
+                          language={match[1]}
+                          PreTag="div"
+                        >
+                          {codeStr}
+                        </SyntaxHighlighter>
+                      </div>
+                    )
+                  }
+                  return <code {...props}>{children}</code>
+                },
+              }}
+            >
+              {message.content}
+            </ReactMarkdown>
+            {message.isStreaming && (
+              <span className="inline-block w-[6px] h-[14px] bg-primary-400 ml-0.5 animate-blink" />
+            )}
+          </div>
+        </div>
+      </div>
+    </div>
+  )
+}
+
+export default MessageBubble
--- a/desktop/src/renderer/src/components/Sidebar.tsx
+++ b/desktop/src/renderer/src/components/Sidebar.tsx
@@ -0,0 +1,116 @@
+import React, { useState } from 'react'
+import { useLocation, useNavigate } from 'react-router-dom'
+import { t } from '../i18n'
+
+interface SidebarProps {
+  version: string
+}
+
+interface MenuGroup {
+  key: string
+  labelKey: string
+  items: { path: string; labelKey: string; icon: string }[]
+}
+
+const menuGroups: MenuGroup[] = [
+  {
+    key: 'chat',
+    labelKey: 'nav_chat',
+    items: [{ path: '/', labelKey: 'menu_chat', icon: 'fas fa-message' }],
+  },
+  {
+    key: 'manage',
+    labelKey: 'nav_manage',
+    items: [
+      { path: '/config', labelKey: 'menu_config', icon: 'fas fa-sliders' },
+      { path: '/skills', labelKey: 'menu_skills', icon: 'fas fa-bolt' },
+      { path: '/memory', labelKey: 'menu_memory', icon: 'fas fa-brain' },
+      { path: '/channels', labelKey: 'menu_channels', icon: 'fas fa-tower-broadcast' },
+      { path: '/tasks', labelKey: 'menu_tasks', icon: 'fas fa-clock' },
+    ],
+  },
+  {
+    key: 'monitor',
+    labelKey: 'nav_monitor',
+    items: [{ path: '/logs', labelKey: 'menu_logs', icon: 'fas fa-terminal' }],
+  },
+]
+
+const Sidebar: React.FC<SidebarProps> = ({ version }) => {
+  const location = useLocation()
+  const navigate = useNavigate()
+  const [openGroups, setOpenGroups] = useState<Record<string, boolean>>({
+    chat: true,
+    manage: true,
+    monitor: true,
+  })
+
+  const toggleGroup = (key: string) => {
+    setOpenGroups((prev) => ({ ...prev, [key]: !prev[key] }))
+  }
+
+  return (
+    <aside className="w-64 bg-[#0A0A0A] text-neutral-400 flex flex-col flex-shrink-0 h-full">
+      {/* Logo area with traffic light spacing on macOS */}
+      <div className="flex items-center gap-3 pl-20 pr-5 h-[52px] border-b border-white/10 flex-shrink-0 titlebar-drag">
+        <img src="./logo.jpg" alt="CowAgent" className="w-8 h-8 rounded-lg flex-shrink-0" />
+        <div className="flex flex-col min-w-0">
+          <span className="text-white font-semibold text-sm truncate">CowAgent</span>
+          <span className="text-neutral-500 text-xs">{t('console')}</span>
+        </div>
+      </div>
+
+      {/* Navigation */}
+      <nav className="flex-1 overflow-y-auto py-4 px-3 space-y-1">
+        {menuGroups.map((group) => {
+          const isOpen = openGroups[group.key] !== false
+          return (
+            <div key={group.key} className={`menu-group ${isOpen ? 'open' : ''}`}>
+              <button
+                onClick={() => toggleGroup(group.key)}
+                className="w-full flex items-center gap-2 px-3 py-2 text-xs font-semibold uppercase tracking-wider text-neutral-500 hover:text-neutral-300 cursor-pointer transition-colors duration-150"
+              >
+                <i className="fas fa-chevron-right text-[10px] chevron" />
+                <span>{t(group.labelKey)}</span>
+              </button>
+              <div className="menu-group-items pl-2">
+                {group.items.map((item) => {
+                  const isActive = location.pathname === item.path
+                  return (
+                    <a
+                      key={item.path}
+                      onClick={() => navigate(item.path)}
+                      className={`sidebar-item flex items-center gap-3 px-3 py-2 rounded-lg cursor-pointer transition-all duration-150 hover:bg-white/5 hover:text-neutral-200 text-[14px] ${
+                        isActive ? 'active' : ''
+                      }`}
+                    >
+                      <i className={`${item.icon} item-icon text-xs w-5 text-center`} />
+                      <span>{t(item.labelKey)}</span>
+                    </a>
+                  )
+                })}
+              </div>
+            </div>
+          )
+        })}
+      </nav>
+
+      {/* Footer */}
+      <div className="px-4 py-3 border-t border-white/10 flex-shrink-0">
+        <div className="flex items-center gap-2 text-xs text-neutral-600">
+          <i className="fas fa-circle text-[6px] text-primary-400" />
+          <a
+            href="https://github.com/zhayujie/chatgpt-on-wechat/releases"
+            target="_blank"
+            rel="noopener noreferrer"
+            className="hover:text-primary-400 transition-colors duration-150 cursor-pointer"
+          >
+            {version}
+          </a>
+        </div>
+      </div>
+    </aside>
+  )
+}
+
+export default Sidebar
--- a/desktop/src/renderer/src/components/StatusScreen.tsx
+++ b/desktop/src/renderer/src/components/StatusScreen.tsx
@@ -0,0 +1,58 @@
+import React from 'react'
+import { t } from '../i18n'
+
+interface StatusScreenProps {
+  status: 'connecting' | 'error'
+  error?: string
+  onRetry: () => void
+}
+
+const StatusScreen: React.FC<StatusScreenProps> = ({ status, error, onRetry }) => {
+  return (
+    <div className="h-screen w-screen flex items-center justify-center bg-gray-50 dark:bg-[#111111]">
+      <div className="text-center space-y-6 max-w-md px-8">
+        <img src="./logo.jpg" alt="CowAgent" className="w-16 h-16 rounded-2xl mx-auto shadow-lg shadow-primary-500/20" />
+
+        {status === 'connecting' && (
+          <>
+            <div className="space-y-2">
+              <h1 className="text-xl font-bold text-slate-800 dark:text-slate-100">
+                {t('status_starting')}
+              </h1>
+              <p className="text-sm text-slate-500 dark:text-slate-400">
+                {t('status_starting_desc')}
+              </p>
+            </div>
+            <div className="flex justify-center gap-1">
+              <span className="w-2 h-2 rounded-full bg-primary-400 animate-pulse-dot" style={{ animationDelay: '0s' }} />
+              <span className="w-2 h-2 rounded-full bg-primary-400 animate-pulse-dot" style={{ animationDelay: '0.2s' }} />
+              <span className="w-2 h-2 rounded-full bg-primary-400 animate-pulse-dot" style={{ animationDelay: '0.4s' }} />
+            </div>
+          </>
+        )}
+
+        {status === 'error' && (
+          <>
+            <div className="space-y-2">
+              <h1 className="text-xl font-bold text-slate-800 dark:text-slate-100">
+                {t('status_error')}
+              </h1>
+              <p className="text-sm text-slate-500 dark:text-slate-400">
+                {error || t('status_error_desc')}
+              </p>
+            </div>
+            <button
+              onClick={onRetry}
+              className="inline-flex items-center gap-2 px-4 py-2 bg-primary-500 hover:bg-primary-600 text-white rounded-lg transition-colors text-sm font-medium cursor-pointer"
+            >
+              <i className="fas fa-rotate-right text-xs" />
+              {t('status_retry')}
+            </button>
+          </>
+        )}
+      </div>
+    </div>
+  )
+}
+
+export default StatusScreen
--- a/desktop/src/renderer/src/hooks/useBackend.ts
+++ b/desktop/src/renderer/src/hooks/useBackend.ts
@@ -0,0 +1,98 @@
+import { useState, useEffect, useCallback, useRef } from 'react'
+
+interface BackendState {
+  status: 'connecting' | 'ready' | 'error'
+  port: number
+  error?: string
+}
+
+export function useBackend() {
+  const [state, setState] = useState<BackendState>({
+    status: 'connecting',
+    port: 9899,
+  })
+  const pollingRef = useRef<ReturnType<typeof setTimeout> | null>(null)
+
+  const probeBackend = useCallback(async (port: number): Promise<boolean> => {
+    try {
+      const res = await fetch(`http://127.0.0.1:${port}/config`, {
+        signal: AbortSignal.timeout(3000),
+      })
+      return res.ok
+    } catch {
+      return false
+    }
+  }, [])
+
+  useEffect(() => {
+    let cancelled = false
+    const api = window.electronAPI
+
+    const startPolling = async (port: number) => {
+      let attempts = 0
+      const maxAttempts = 90
+
+      const poll = async () => {
+        if (cancelled) return
+        attempts++
+
+        const ready = await probeBackend(port)
+        if (cancelled) return
+
+        if (ready) {
+          setState({ status: 'ready', port })
+          return
+        }
+
+        if (attempts >= maxAttempts) {
+          setState({ status: 'error', port, error: 'Backend failed to start. Check if Python and dependencies are installed.' })
+          return
+        }
+
+        pollingRef.current = setTimeout(poll, 1000)
+      }
+
+      await poll()
+    }
+
+    if (api) {
+      api.getBackendPort().then((port) => {
+        const p = port || 9899
+        setState((prev) => ({ ...prev, port: p }))
+        startPolling(p)
+      })
+
+      api.onBackendStatus((data) => {
+        if (data.status === 'ready' && data.port) {
+          setState({ status: 'ready', port: data.port })
+          if (pollingRef.current) {
+            clearTimeout(pollingRef.current)
+            pollingRef.current = null
+          }
+        } else if (data.status === 'error') {
+          setState((prev) => ({ ...prev, status: 'error', error: data.error }))
+        }
+      })
+    } else {
+      startPolling(9899)
+    }
+
+    return () => {
+      cancelled = true
+      if (pollingRef.current) {
+        clearTimeout(pollingRef.current)
+      }
+    }
+  }, [probeBackend])
+
+  const restart = useCallback(async () => {
+    setState((prev) => ({ ...prev, status: 'connecting', error: undefined }))
+    if (window.electronAPI) {
+      await window.electronAPI.restartBackend()
+    }
+  }, [])
+
+  const baseUrl = `http://127.0.0.1:${state.port}`
+
+  return { ...state, baseUrl, restart }
+}
--- a/desktop/src/renderer/src/hooks/useTheme.ts
+++ b/desktop/src/renderer/src/hooks/useTheme.ts
@@ -0,0 +1,27 @@
+import { useState, useEffect, useCallback } from 'react'
+
+type Theme = 'light' | 'dark'
+
+export function useTheme() {
+  const [theme, setThemeState] = useState<Theme>(() => {
+    const saved = localStorage.getItem('cow_theme')
+    if (saved === 'dark' || saved === 'light') return saved
+    return 'dark'
+  })
+
+  useEffect(() => {
+    const root = document.documentElement
+    if (theme === 'dark') {
+      root.classList.add('dark')
+    } else {
+      root.classList.remove('dark')
+    }
+    localStorage.setItem('cow_theme', theme)
+  }, [theme])
+
+  const toggleTheme = useCallback(() => {
+    setThemeState((prev) => (prev === 'dark' ? 'light' : 'dark'))
+  }, [])
+
+  return { theme, toggleTheme }
+}
--- a/desktop/src/renderer/src/i18n.ts
+++ b/desktop/src/renderer/src/i18n.ts
@@ -0,0 +1,167 @@
+const translations: Record<string, Record<string, string>> = {
+  zh: {
+    console: '控制台',
+    nav_chat: '对话',
+    nav_manage: '管理',
+    nav_monitor: '监控',
+    menu_chat: '对话',
+    menu_config: '配置',
+    menu_skills: '技能',
+    menu_memory: '记忆',
+    menu_channels: '通道',
+    menu_tasks: '定时',
+    menu_logs: '日志',
+    welcome_subtitle: '我可以帮你解答问题、管理你的电脑、创建并执行技能，\n还能通过长期记忆不断成长。',
+    example_sys_title: '系统管理',
+    example_sys_text: '帮我查看工作空间里有哪些文件',
+    example_task_title: '技能系统',
+    example_task_text: '查看所有支持的工具和技能',
+    example_code_title: '编程助手',
+    example_code_text: '帮我编写一个Python爬虫脚本',
+    input_placeholder: '输入消息...',
+    config_title: '配置管理',
+    config_desc: '管理模型和 Agent 配置',
+    config_model: '模型配置',
+    config_agent: 'Agent 配置',
+    config_provider: '模型厂商',
+    config_model_name: '模型',
+    config_custom_model_hint: '输入自定义模型名称',
+    config_save: '保存',
+    config_saved: '已保存',
+    config_save_error: '保存失败',
+    config_custom_option: '自定义...',
+    config_max_tokens: '最大上下文 Token',
+    config_max_turns: '最大上下文轮次',
+    config_max_steps: '最大步数',
+    skills_title: '技能管理',
+    skills_desc: '查看、启用或禁用 Agent 技能',
+    tools_section_title: '内置工具',
+    skills_section_title: '自定义技能',
+    tools_loading: '加载工具中...',
+    skills_loading: '加载技能中...',
+    skills_loading_desc: '技能将在加载后显示',
+    skill_enabled: '已启用',
+    skill_disabled: '已禁用',
+    memory_title: '记忆',
+    memory_desc: '查看 Agent 记忆文件和内容',
+    memory_loading: '加载记忆文件中...',
+    memory_loading_desc: '记忆文件将在加载后显示',
+    memory_col_name: '文件名',
+    memory_col_type: '类型',
+    memory_col_size: '大小',
+    memory_col_updated: '更新时间',
+    memory_back: '返回',
+    channels_title: '通道管理',
+    channels_desc: '查看和管理消息通道',
+    channels_add: '连接',
+    channels_connected: '已连接',
+    channels_disconnected: '未连接',
+    channels_connect: '连接',
+    channels_disconnect: '断开',
+    tasks_title: '定时任务',
+    tasks_desc: '查看和管理定时任务',
+    tasks_active: '运行中',
+    tasks_paused: '已暂停',
+    tasks_empty: '暂无定时任务',
+    logs_title: '日志',
+    logs_desc: '实时日志输出 (run.log)',
+    logs_live: '实时',
+    logs_connecting: '日志流将在连接后显示...',
+    status_starting: '正在启动 CowAgent...',
+    status_starting_desc: '正在初始化后端服务，请稍候',
+    status_error: '启动失败',
+    status_error_desc: '无法连接到后端服务',
+    status_retry: '重试',
+  },
+  en: {
+    console: 'Console',
+    nav_chat: 'Chat',
+    nav_manage: 'Management',
+    nav_monitor: 'Monitor',
+    menu_chat: 'Chat',
+    menu_config: 'Config',
+    menu_skills: 'Skills',
+    menu_memory: 'Memory',
+    menu_channels: 'Channels',
+    menu_tasks: 'Tasks',
+    menu_logs: 'Logs',
+    welcome_subtitle: 'I can help you answer questions, manage your computer, create and execute skills,\nand keep growing through long-term memory.',
+    example_sys_title: 'System',
+    example_sys_text: 'Show me the files in the workspace',
+    example_task_title: 'Skills',
+    example_task_text: 'Show current tools and skills',
+    example_code_title: 'Coding',
+    example_code_text: 'Write a Python web scraper script',
+    input_placeholder: 'Type a message...',
+    config_title: 'Configuration',
+    config_desc: 'Manage model and agent settings',
+    config_model: 'Model Configuration',
+    config_agent: 'Agent Configuration',
+    config_provider: 'Provider',
+    config_model_name: 'Model',
+    config_custom_model_hint: 'Enter custom model name',
+    config_save: 'Save',
+    config_saved: 'Saved',
+    config_save_error: 'Save failed',
+    config_custom_option: 'Custom...',
+    config_max_tokens: 'Max Context Tokens',
+    config_max_turns: 'Max Context Turns',
+    config_max_steps: 'Max Steps',
+    skills_title: 'Skills',
+    skills_desc: 'View, enable, or disable agent skills',
+    tools_section_title: 'Built-in Tools',
+    skills_section_title: 'Skills',
+    tools_loading: 'Loading tools...',
+    skills_loading: 'Loading skills...',
+    skills_loading_desc: 'Skills will be displayed here after loading',
+    skill_enabled: 'Enabled',
+    skill_disabled: 'Disabled',
+    memory_title: 'Memory',
+    memory_desc: 'View agent memory files and contents',
+    memory_loading: 'Loading memory files...',
+    memory_loading_desc: 'Memory files will be displayed here',
+    memory_col_name: 'Filename',
+    memory_col_type: 'Type',
+    memory_col_size: 'Size',
+    memory_col_updated: 'Updated',
+    memory_back: 'Back',
+    channels_title: 'Channels',
+    channels_desc: 'View and manage messaging channels',
+    channels_add: 'Connect',
+    channels_connected: 'Connected',
+    channels_disconnected: 'Disconnected',
+    channels_connect: 'Connect',
+    channels_disconnect: 'Disconnect',
+    tasks_title: 'Scheduled Tasks',
+    tasks_desc: 'View and manage scheduled tasks',
+    tasks_active: 'Active',
+    tasks_paused: 'Paused',
+    tasks_empty: 'No scheduled tasks',
+    logs_title: 'Logs',
+    logs_desc: 'Real-time log output (run.log)',
+    logs_live: 'Live',
+    logs_connecting: 'Log streaming will connect shortly...',
+    status_starting: 'Starting CowAgent...',
+    status_starting_desc: 'Initializing the backend service, please wait',
+    status_error: 'Failed to Start',
+    status_error_desc: 'Unable to connect to the backend service',
+    status_retry: 'Retry',
+  },
+}
+
+export type Lang = 'zh' | 'en'
+
+let currentLang: Lang = (localStorage.getItem('cow_lang') as Lang) || 'zh'
+
+export function t(key: string): string {
+  return translations[currentLang]?.[key] || translations['en']?.[key] || key
+}
+
+export function getLang(): Lang {
+  return currentLang
+}
+
+export function setLang(lang: Lang) {
+  currentLang = lang
+  localStorage.setItem('cow_lang', lang)
+}
--- a/desktop/src/renderer/src/index.css
+++ b/desktop/src/renderer/src/index.css
@@ -0,0 +1,243 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+* {
+  box-sizing: border-box;
+  scrollbar-width: thin;
+  scrollbar-color: #94a3b8 transparent;
+}
+
+::-webkit-scrollbar { width: 6px; height: 6px; }
+::-webkit-scrollbar-track { background: transparent; }
+::-webkit-scrollbar-thumb { background: #94a3b8; border-radius: 3px; }
+::-webkit-scrollbar-thumb:hover { background: #64748b; }
+.dark ::-webkit-scrollbar-thumb { background: #475569; }
+.dark ::-webkit-scrollbar-thumb:hover { background: #64748b; }
+
+body {
+  @apply bg-gray-50 text-slate-800 overflow-hidden;
+  font-family: 'Inter', system-ui, -apple-system, 'PingFang SC', 'Hiragino Sans GB', sans-serif;
+}
+
+.dark body {
+  @apply bg-[#111111] text-slate-200;
+}
+
+@keyframes blink {
+  0%, 100% { opacity: 1; }
+  50% { opacity: 0; }
+}
+
+.animate-blink {
+  animation: blink 1s step-end infinite;
+}
+
+/* Sidebar */
+.sidebar-item.active {
+  background: rgba(255, 255, 255, 0.08);
+  color: #fff;
+}
+
+.sidebar-item.active .item-icon {
+  color: #4ABE6E;
+}
+
+.menu-group .chevron {
+  transition: transform 0.25s ease;
+}
+
+.menu-group.open .chevron {
+  transform: rotate(90deg);
+}
+
+.menu-group-items {
+  max-height: 0;
+  overflow: hidden;
+  transition: max-height 0.25s ease;
+}
+
+.menu-group.open .menu-group-items {
+  max-height: 500px;
+  transition: max-height 0.35s ease;
+}
+
+/* Markdown content */
+.msg-content pre {
+  @apply rounded-lg overflow-x-auto my-3;
+  background: #f1f5f9;
+}
+
+.dark .msg-content pre {
+  background: #111111;
+}
+
+.msg-content :not(pre) > code {
+  padding: 2px 6px;
+  border-radius: 4px;
+  font-size: 0.875em;
+  background: rgba(74, 190, 110, 0.1);
+  color: #1C6B3B;
+}
+
+.dark .msg-content :not(pre) > code {
+  background: rgba(74, 190, 110, 0.15);
+  color: #74E9A4;
+}
+
+.msg-content p { @apply my-2 leading-relaxed; }
+.msg-content ul, .msg-content ol { @apply pl-6 my-2; }
+.msg-content li { @apply my-1; }
+
+.msg-content a {
+  color: #35A85B;
+}
+
+.msg-content a:hover {
+  color: #228547;
+}
+
+.msg-content table {
+  @apply border-collapse w-full my-3;
+}
+
+.msg-content th, .msg-content td {
+  @apply border px-3 py-2 text-sm;
+  border-color: #e2e8f0;
+}
+
+.dark .msg-content th, .dark .msg-content td {
+  border-color: rgba(255, 255, 255, 0.1);
+}
+
+.msg-content th {
+  @apply font-medium;
+  background: #f1f5f9;
+}
+
+.dark .msg-content th {
+  background: #111111;
+}
+
+.msg-content blockquote {
+  @apply pl-4 my-3;
+  border-left: 4px solid #4ABE6E;
+}
+
+.dark .msg-content blockquote {
+  background: rgba(74, 190, 110, 0.08);
+}
+
+.msg-content hr {
+  @apply my-4;
+  border-color: #e2e8f0;
+}
+
+.dark .msg-content hr {
+  border-color: rgba(255, 255, 255, 0.1);
+}
+
+/* Tool steps */
+.tool-header {
+  @apply cursor-pointer transition-colors duration-150;
+}
+
+.tool-header:hover {
+  background: rgba(0, 0, 0, 0.02);
+}
+
+.dark .tool-header:hover {
+  background: rgba(255, 255, 255, 0.02);
+}
+
+.tool-detail {
+  background: rgba(0, 0, 0, 0.02);
+  border: 1px solid rgba(0, 0, 0, 0.04);
+}
+
+.dark .tool-detail {
+  background: rgba(255, 255, 255, 0.02);
+  border-color: rgba(255, 255, 255, 0.04);
+}
+
+/* Config dropdown */
+.cfg-dropdown { @apply relative; }
+
+.cfg-dropdown-selected {
+  @apply flex items-center justify-between px-3 rounded-lg border cursor-pointer transition-colors text-sm;
+  height: 40px;
+  border-color: #e2e8f0;
+  background: #f8fafc;
+}
+
+.dark .cfg-dropdown-selected {
+  border-color: #475569;
+  background: rgba(255, 255, 255, 0.05);
+  color: #f1f5f9;
+}
+
+.cfg-dropdown-menu {
+  @apply absolute left-0 right-0 z-50 rounded-lg border shadow-lg overflow-y-auto hidden;
+  top: calc(100% + 4px);
+  max-height: 240px;
+  padding: 4px;
+  border-color: #e2e8f0;
+  background: #fff;
+}
+
+.dark .cfg-dropdown-menu {
+  border-color: #334155;
+  background: #1e1e1e;
+}
+
+.cfg-dropdown.open .cfg-dropdown-menu {
+  @apply block;
+}
+
+.cfg-dropdown-item {
+  @apply px-3 py-2 rounded-md text-sm cursor-pointer transition-colors;
+  color: #334155;
+}
+
+.cfg-dropdown-item:hover {
+  background: #f1f5f9;
+}
+
+.dark .cfg-dropdown-item {
+  color: #cbd5e1;
+}
+
+.dark .cfg-dropdown-item:hover {
+  background: rgba(255, 255, 255, 0.08);
+}
+
+.cfg-dropdown-item.active {
+  background: rgba(74, 190, 110, 0.1);
+  color: #4ABE6E;
+}
+
+.dark .cfg-dropdown-item.active {
+  background: rgba(74, 190, 110, 0.15);
+  color: #74E9A4;
+}
+
+/* API Key mask */
+.cfg-key-masked {
+  -webkit-text-security: disc;
+}
+
+/* Chat input */
+#chat-input {
+  height: 42px;
+  max-height: 180px;
+  resize: none;
+}
+
+/* Titlebar drag region for macOS */
+.titlebar-drag {
+  -webkit-app-region: drag;
+}
+
+.titlebar-no-drag {
+  -webkit-app-region: no-drag;
+}
--- a/desktop/src/renderer/src/main.tsx
+++ b/desktop/src/renderer/src/main.tsx
@@ -0,0 +1,13 @@
+import React from 'react'
+import ReactDOM from 'react-dom/client'
+import { HashRouter } from 'react-router-dom'
+import App from './App'
+import './index.css'
+
+ReactDOM.createRoot(document.getElementById('root')!).render(
+  <React.StrictMode>
+    <HashRouter>
+      <App />
+    </HashRouter>
+  </React.StrictMode>
+)
--- a/desktop/src/renderer/src/pages/ChannelsPage.tsx
+++ b/desktop/src/renderer/src/pages/ChannelsPage.tsx
@@ -0,0 +1,138 @@
+import React, { useState, useEffect } from 'react'
+import { t } from '../i18n'
+import apiClient from '../api/client'
+import type { ChannelInfo } from '../types'
+
+interface ChannelsPageProps {
+  baseUrl: string
+}
+
+const ChannelsPage: React.FC<ChannelsPageProps> = ({ baseUrl }) => {
+  const [channels, setChannels] = useState<ChannelInfo[]>([])
+  const [loading, setLoading] = useState(true)
+  const [configValues, setConfigValues] = useState<Record<string, Record<string, string>>>({})
+  const [actionLoading, setActionLoading] = useState<string | null>(null)
+
+  useEffect(() => {
+    apiClient.setBaseUrl(baseUrl)
+    loadChannels()
+  }, [baseUrl])
+
+  const loadChannels = async () => {
+    try {
+      setLoading(true)
+      const data = await apiClient.getChannels()
+      setChannels(data || [])
+    } catch (err) {
+      console.error('Failed to load channels:', err)
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  const handleFieldChange = (ch: string, key: string, val: string) => {
+    setConfigValues((prev) => ({ ...prev, [ch]: { ...prev[ch], [key]: val } }))
+  }
+
+  const handleAction = async (channel: ChannelInfo, action: 'save' | 'connect' | 'disconnect') => {
+    setActionLoading(`${channel.name}-${action}`)
+    try {
+      await apiClient.channelAction(action, channel.name, configValues[channel.name])
+      await loadChannels()
+    } catch (err) {
+      console.error(`Action failed:`, err)
+    } finally {
+      setActionLoading(null)
+    }
+  }
+
+  return (
+    <div className="flex-1 overflow-y-auto p-6">
+      <div className="max-w-4xl mx-auto">
+        <div className="flex items-center justify-between mb-6">
+          <div>
+            <h2 className="text-xl font-bold text-slate-800 dark:text-slate-100">{t('channels_title')}</h2>
+            <p className="text-sm text-slate-500 dark:text-slate-400 mt-1">{t('channels_desc')}</p>
+          </div>
+        </div>
+
+        {loading ? (
+          <div className="flex items-center justify-center py-20 text-slate-400">
+            <i className="fas fa-spinner fa-spin mr-2" />Loading...
+          </div>
+        ) : (
+          <div className="grid gap-4">
+            {channels.map((ch) => (
+              <div key={ch.name} className="bg-white dark:bg-[#1A1A1A] rounded-xl border border-slate-200 dark:border-white/10 p-5">
+                <div className="flex items-center justify-between mb-4">
+                  <div className="flex items-center gap-3">
+                    <div className="w-9 h-9 rounded-lg bg-blue-50 dark:bg-blue-900/30 flex items-center justify-center">
+                      <i className={`fas ${ch.icon || 'fa-tower-broadcast'} text-blue-500 text-sm`} />
+                    </div>
+                    <span className="font-semibold text-slate-800 dark:text-slate-100">{ch.label?.zh || ch.label?.en || ch.name}</span>
+                  </div>
+                  <span className={`text-xs px-2.5 py-1 rounded-full ${
+                    ch.active
+                      ? 'bg-primary-50 dark:bg-primary-900/20 text-primary-600 dark:text-primary-400'
+                      : 'bg-slate-100 dark:bg-white/10 text-slate-500 dark:text-slate-400'
+                  }`}>
+                    {ch.active ? t('channels_connected') : t('channels_disconnected')}
+                  </span>
+                </div>
+
+                {ch.fields && ch.fields.length > 0 && (
+                  <div className="space-y-3 mb-4">
+                    {ch.fields.map((field) => (
+                      <div key={field.key}>
+                        <label className="block text-sm font-medium text-slate-600 dark:text-slate-400 mb-1">
+                          {field.label?.zh || field.label?.en || field.key}
+                          {field.required && <span className="text-red-500 ml-0.5">*</span>}
+                        </label>
+                        <input
+                          type={field.type === 'password' ? 'password' : 'text'}
+                          value={configValues[ch.name]?.[field.key] || ''}
+                          onChange={(e) => handleFieldChange(ch.name, field.key, e.target.value)}
+                          placeholder={field.placeholder?.zh || field.placeholder?.en || ''}
+                          className="w-full px-3 py-2 rounded-lg border border-slate-200 dark:border-slate-600 bg-slate-50 dark:bg-white/5 text-sm text-slate-800 dark:text-slate-100 focus:outline-none focus:border-primary-500 transition-colors"
+                        />
+                      </div>
+                    ))}
+                  </div>
+                )}
+
+                <div className="flex items-center gap-2">
+                  <button
+                    onClick={() => handleAction(ch, 'save')}
+                    disabled={actionLoading === `${ch.name}-save`}
+                    className="px-3 py-1.5 rounded-lg border border-slate-200 dark:border-white/10 text-slate-600 dark:text-slate-300 text-sm hover:bg-slate-50 dark:hover:bg-white/5 cursor-pointer transition-colors"
+                  >
+                    <i className="fas fa-save text-xs mr-1.5" />{t('config_save')}
+                  </button>
+                  {ch.active ? (
+                    <button
+                      onClick={() => handleAction(ch, 'disconnect')}
+                      disabled={actionLoading === `${ch.name}-disconnect`}
+                      className="px-3 py-1.5 rounded-lg bg-red-50 dark:bg-red-900/20 text-red-600 dark:text-red-400 text-sm hover:bg-red-100 dark:hover:bg-red-900/30 cursor-pointer transition-colors"
+                    >
+                      <i className="fas fa-unlink text-xs mr-1.5" />{t('channels_disconnect')}
+                    </button>
+                  ) : (
+                    <button
+                      onClick={() => handleAction(ch, 'connect')}
+                      disabled={actionLoading === `${ch.name}-connect`}
+                      className="px-3 py-1.5 rounded-lg bg-primary-500 hover:bg-primary-600 text-white text-sm cursor-pointer transition-colors"
+                    >
+                      <i className="fas fa-link text-xs mr-1.5" />{t('channels_connect')}
+                    </button>
+                  )}
+                </div>
+              </div>
+            ))}
+          </div>
+        )}
+      </div>
+    </div>
+  )
+}
+
+export default ChannelsPage
--- a/desktop/src/renderer/src/pages/ChatPage.tsx
+++ b/desktop/src/renderer/src/pages/ChatPage.tsx
@@ -0,0 +1,205 @@
+import React, { useState, useEffect, useRef, useCallback } from 'react'
+import MessageBubble from '../components/MessageBubble'
+import ChatInput from '../components/ChatInput'
+import { useTheme } from '../hooks/useTheme'
+import { t } from '../i18n'
+import apiClient from '../api/client'
+import type { ChatMessage, Attachment, ToolCall } from '../types'
+
+interface ChatPageProps {
+  baseUrl: string
+}
+
+const ChatPage: React.FC<ChatPageProps> = ({ baseUrl }) => {
+  const [messages, setMessages] = useState<ChatMessage[]>([])
+  const [isStreaming, setIsStreaming] = useState(false)
+  const [sessionId, setSessionId] = useState(() => `session_${Date.now().toString(36)}`)
+  const messagesEndRef = useRef<HTMLDivElement>(null)
+  const { theme } = useTheme()
+
+  useEffect(() => {
+    apiClient.setBaseUrl(baseUrl)
+  }, [baseUrl])
+
+  const scrollToBottom = useCallback(() => {
+    messagesEndRef.current?.scrollIntoView({ behavior: 'smooth' })
+  }, [])
+
+  useEffect(() => {
+    scrollToBottom()
+  }, [messages, scrollToBottom])
+
+  const handleNewChat = useCallback(() => {
+    setMessages([])
+    setSessionId(`session_${Date.now().toString(36)}`)
+  }, [])
+
+  const handleSend = useCallback(async (text: string, attachments: Attachment[]) => {
+    const userMessage: ChatMessage = {
+      id: `user_${Date.now()}`,
+      role: 'user',
+      content: text,
+      timestamp: Date.now() / 1000,
+      attachments: attachments.length > 0 ? attachments : undefined,
+    }
+    setMessages((prev) => [...prev, userMessage])
+
+    const assistantId = `assistant_${Date.now()}`
+    const assistantMessage: ChatMessage = {
+      id: assistantId,
+      role: 'assistant',
+      content: '',
+      timestamp: Date.now() / 1000,
+      isStreaming: true,
+      toolCalls: [],
+    }
+    setMessages((prev) => [...prev, assistantMessage])
+    setIsStreaming(true)
+
+    try {
+      const response = await apiClient.sendMessage(
+        sessionId, text, true,
+        attachments.length > 0 ? attachments : undefined
+      )
+
+      if (response.status === 'success' && response.stream) {
+        const eventSource = apiClient.createSSEStream(response.request_id)
+
+        eventSource.onmessage = (event) => {
+          try {
+            const data = JSON.parse(event.data)
+            switch (data.type) {
+              case 'delta':
+                setMessages((prev) =>
+                  prev.map((msg) =>
+                    msg.id === assistantId ? { ...msg, content: msg.content + data.content } : msg
+                  )
+                )
+                break
+              case 'tool_start':
+              case 'tool_end': {
+                const toolCall: ToolCall = {
+                  type: data.type, tool: data.tool,
+                  arguments: data.arguments, result: data.result,
+                  status: data.status, execution_time: data.execution_time,
+                }
+                setMessages((prev) =>
+                  prev.map((msg) =>
+                    msg.id === assistantId ? { ...msg, toolCalls: [...(msg.toolCalls || []), toolCall] } : msg
+                  )
+                )
+                break
+              }
+              case 'done':
+                setMessages((prev) =>
+                  prev.map((msg) =>
+                    msg.id === assistantId ? { ...msg, content: data.content || msg.content, isStreaming: false } : msg
+                  )
+                )
+                setIsStreaming(false)
+                eventSource.close()
+                break
+              case 'error':
+                setMessages((prev) =>
+                  prev.map((msg) =>
+                    msg.id === assistantId ? { ...msg, content: `Error: ${data.message}`, isStreaming: false } : msg
+                  )
+                )
+                setIsStreaming(false)
+                eventSource.close()
+                break
+            }
+          } catch { /* ignore keepalive */ }
+        }
+
+        eventSource.onerror = () => {
+          setMessages((prev) =>
+            prev.map((msg) => (msg.id === assistantId ? { ...msg, isStreaming: false } : msg))
+          )
+          setIsStreaming(false)
+          eventSource.close()
+        }
+      }
+    } catch (err) {
+      setMessages((prev) =>
+        prev.map((msg) =>
+          msg.id === assistantId ? { ...msg, content: `Connection error: ${err}`, isStreaming: false } : msg
+        )
+      )
+      setIsStreaming(false)
+    }
+  }, [sessionId])
+
+  return (
+    <div className="flex flex-col flex-1 min-h-0">
+      {/* Messages */}
+      <div className="flex-1 overflow-y-auto">
+        {messages.length === 0 ? (
+          /* Welcome Screen — exact match with Web console */
+          <div className="flex flex-col items-center justify-center h-full px-6 py-12">
+            <img src="./logo.jpg" alt="CowAgent" className="w-16 h-16 rounded-2xl mb-6 shadow-lg shadow-primary-500/20" />
+            <h1 className="text-2xl font-bold text-slate-800 dark:text-slate-100 mb-3">CowAgent</h1>
+            <p className="text-slate-500 dark:text-slate-400 text-center max-w-lg mb-10 leading-relaxed whitespace-pre-line">
+              {t('welcome_subtitle')}
+            </p>
+
+            <div className="grid grid-cols-1 sm:grid-cols-3 gap-4 w-full max-w-2xl">
+              {/* System card */}
+              <div
+                onClick={() => handleSend(t('example_sys_text'), [])}
+                className="group bg-white dark:bg-[#1A1A1A] border border-slate-200 dark:border-white/10 rounded-xl p-4 cursor-pointer hover:border-primary-300 dark:hover:border-primary-600 hover:shadow-md transition-all duration-200"
+              >
+                <div className="flex items-center gap-2 mb-2">
+                  <div className="w-7 h-7 rounded-lg bg-blue-50 dark:bg-blue-900/30 flex items-center justify-center">
+                    <i className="fas fa-folder-open text-blue-500 text-xs" />
+                  </div>
+                  <span className="font-medium text-sm text-slate-700 dark:text-slate-200">{t('example_sys_title')}</span>
+                </div>
+                <p className="text-sm text-slate-500 dark:text-slate-400 leading-relaxed">{t('example_sys_text')}</p>
+              </div>
+
+              {/* Skills card */}
+              <div
+                onClick={() => handleSend(t('example_task_text'), [])}
+                className="group bg-white dark:bg-[#1A1A1A] border border-slate-200 dark:border-white/10 rounded-xl p-4 cursor-pointer hover:border-primary-300 dark:hover:border-primary-600 hover:shadow-md transition-all duration-200"
+              >
+                <div className="flex items-center gap-2 mb-2">
+                  <div className="w-7 h-7 rounded-lg bg-amber-50 dark:bg-amber-900/30 flex items-center justify-center">
+                    <i className="fas fa-clock text-amber-500 text-xs" />
+                  </div>
+                  <span className="font-medium text-sm text-slate-700 dark:text-slate-200">{t('example_task_title')}</span>
+                </div>
+                <p className="text-sm text-slate-500 dark:text-slate-400 leading-relaxed">{t('example_task_text')}</p>
+              </div>
+
+              {/* Coding card */}
+              <div
+                onClick={() => handleSend(t('example_code_text'), [])}
+                className="group bg-white dark:bg-[#1A1A1A] border border-slate-200 dark:border-white/10 rounded-xl p-4 cursor-pointer hover:border-primary-300 dark:hover:border-primary-600 hover:shadow-md transition-all duration-200"
+              >
+                <div className="flex items-center gap-2 mb-2">
+                  <div className="w-7 h-7 rounded-lg bg-emerald-50 dark:bg-emerald-900/30 flex items-center justify-center">
+                    <i className="fas fa-code text-emerald-500 text-xs" />
+                  </div>
+                  <span className="font-medium text-sm text-slate-700 dark:text-slate-200">{t('example_code_title')}</span>
+                </div>
+                <p className="text-sm text-slate-500 dark:text-slate-400 leading-relaxed">{t('example_code_text')}</p>
+              </div>
+            </div>
+          </div>
+        ) : (
+          <div className="py-2">
+            {messages.map((msg) => (
+              <MessageBubble key={msg.id} message={msg} theme={theme} baseUrl={baseUrl} />
+            ))}
+            <div ref={messagesEndRef} />
+          </div>
+        )}
+      </div>
+
+      <ChatInput onSend={handleSend} onNewChat={handleNewChat} disabled={isStreaming} sessionId={sessionId} />
+    </div>
+  )
+}
+
+export default ChatPage
--- a/desktop/src/renderer/src/pages/ConfigPage.tsx
+++ b/desktop/src/renderer/src/pages/ConfigPage.tsx
@@ -0,0 +1,288 @@
+import React, { useState, useEffect, useCallback, useRef } from 'react'
+import { t } from '../i18n'
+import apiClient from '../api/client'
+import type { ConfigData } from '../types'
+
+interface ConfigPageProps {
+  baseUrl: string
+}
+
+interface DropdownProps {
+  id: string
+  value: string
+  options: string[]
+  onChange: (val: string) => void
+}
+
+const Dropdown: React.FC<DropdownProps> = ({ id, value, options, onChange }) => {
+  const [open, setOpen] = useState(false)
+  const ref = useRef<HTMLDivElement>(null)
+
+  useEffect(() => {
+    const handler = (e: MouseEvent) => {
+      if (ref.current && !ref.current.contains(e.target as Node)) setOpen(false)
+    }
+    document.addEventListener('mousedown', handler)
+    return () => document.removeEventListener('mousedown', handler)
+  }, [])
+
+  return (
+    <div ref={ref} id={id} className={`cfg-dropdown ${open ? 'open' : ''}`} onClick={() => setOpen(!open)}>
+      <div className="cfg-dropdown-selected">
+        <span className="cfg-dropdown-text truncate">{value || '--'}</span>
+        <i className="fas fa-chevron-down text-xs text-slate-400" />
+      </div>
+      <div className="cfg-dropdown-menu">
+        {options.map((opt) => (
+          <div
+            key={opt}
+            className={`cfg-dropdown-item ${opt === value ? 'active' : ''}`}
+            onClick={(e) => { e.stopPropagation(); onChange(opt); setOpen(false); }}
+          >
+            {opt}
+          </div>
+        ))}
+      </div>
+    </div>
+  )
+}
+
+const ConfigPage: React.FC<ConfigPageProps> = ({ baseUrl }) => {
+  const [config, setConfig] = useState<ConfigData | null>(null)
+  const [loading, setLoading] = useState(true)
+  const [provider, setProvider] = useState('')
+  const [model, setModel] = useState('')
+  const [customModel, setCustomModel] = useState('')
+  const [showCustom, setShowCustom] = useState(false)
+  const [apiKey, setApiKey] = useState('')
+  const [apiBase, setApiBase] = useState('')
+  const [keyMasked, setKeyMasked] = useState(true)
+  const [maxTokens, setMaxTokens] = useState(50000)
+  const [maxTurns, setMaxTurns] = useState(20)
+  const [maxSteps, setMaxSteps] = useState(15)
+  const [modelStatus, setModelStatus] = useState('')
+  const [agentStatus, setAgentStatus] = useState('')
+
+  useEffect(() => {
+    apiClient.setBaseUrl(baseUrl)
+    loadConfig()
+  }, [baseUrl])
+
+  const loadConfig = async () => {
+    try {
+      setLoading(true)
+      const data = await apiClient.getConfig()
+      setConfig(data)
+      setModel(data.model || '')
+      setMaxTokens(data.agent_max_context_tokens || 50000)
+      setMaxTurns(data.agent_max_context_turns || 20)
+      setMaxSteps(data.agent_max_steps || 15)
+
+      if (data.providers) {
+        const providerNames = Object.keys(data.providers)
+        if (providerNames.length > 0) {
+          const currentProvider = data.bot_type || providerNames[0]
+          setProvider(currentProvider)
+          const pData = (data.providers as Record<string, any>)[currentProvider]
+          if (pData) {
+            setApiKey(pData.api_key || '')
+            setApiBase(pData.api_base || '')
+          }
+        }
+      }
+    } catch (err) {
+      console.error('Failed to load config:', err)
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  const getModels = useCallback((): string[] => {
+    if (!config?.providers || !provider) return []
+    const pData = (config.providers as Record<string, any>)[provider]
+    const models = pData?.models || []
+    return [...models, t('config_custom_option')]
+  }, [config, provider])
+
+  const handleProviderChange = (val: string) => {
+    setProvider(val)
+    if (config?.providers) {
+      const pData = (config.providers as Record<string, any>)[val]
+      if (pData) {
+        setApiKey(pData.api_key || '')
+        setApiBase(pData.api_base || '')
+        const models = pData.models || []
+        if (models.length > 0) setModel(models[0])
+      }
+    }
+    setShowCustom(false)
+    setCustomModel('')
+  }
+
+  const handleModelChange = (val: string) => {
+    if (val === t('config_custom_option')) {
+      setShowCustom(true)
+      setModel('')
+    } else {
+      setShowCustom(false)
+      setModel(val)
+      setCustomModel('')
+    }
+  }
+
+  const saveModelConfig = async () => {
+    try {
+      const finalModel = showCustom ? customModel : model
+      await apiClient.updateConfig({
+        model: finalModel,
+        bot_type: provider,
+        api_keys: { [provider]: apiKey },
+        api_bases: { [provider]: apiBase },
+      } as any)
+      setModelStatus(t('config_saved'))
+      setTimeout(() => setModelStatus(''), 2000)
+    } catch {
+      setModelStatus(t('config_save_error'))
+      setTimeout(() => setModelStatus(''), 2000)
+    }
+  }
+
+  const saveAgentConfig = async () => {
+    try {
+      await apiClient.updateConfig({
+        agent_max_context_tokens: maxTokens,
+        agent_max_context_turns: maxTurns,
+        agent_max_steps: maxSteps,
+      } as any)
+      setAgentStatus(t('config_saved'))
+      setTimeout(() => setAgentStatus(''), 2000)
+    } catch {
+      setAgentStatus(t('config_save_error'))
+      setTimeout(() => setAgentStatus(''), 2000)
+    }
+  }
+
+  if (loading) {
+    return (
+      <div className="h-full flex items-center justify-center">
+        <div className="text-slate-400"><i className="fas fa-spinner fa-spin mr-2" />Loading...</div>
+      </div>
+    )
+  }
+
+  const providers = config?.providers ? Object.keys(config.providers) : []
+
+  return (
+    <div className="flex-1 overflow-y-auto p-6">
+      <div className="max-w-4xl mx-auto">
+        <div className="flex items-center justify-between mb-6">
+          <div>
+            <h2 className="text-xl font-bold text-slate-800 dark:text-slate-100">{t('config_title')}</h2>
+            <p className="text-sm text-slate-500 dark:text-slate-400 mt-1">{t('config_desc')}</p>
+          </div>
+        </div>
+
+        <div className="grid gap-6">
+          {/* Model Config Card */}
+          <div className="bg-white dark:bg-[#1A1A1A] rounded-xl border border-slate-200 dark:border-white/10 p-6">
+            <div className="flex items-center gap-3 mb-5">
+              <div className="w-9 h-9 rounded-lg bg-primary-50 dark:bg-primary-900/30 flex items-center justify-center">
+                <i className="fas fa-microchip text-primary-500 text-sm" />
+              </div>
+              <h3 className="font-semibold text-slate-800 dark:text-slate-100">{t('config_model')}</h3>
+            </div>
+            <div className="space-y-5">
+              <div>
+                <label className="block text-sm font-medium text-slate-600 dark:text-slate-400 mb-1.5">{t('config_provider')}</label>
+                <Dropdown id="cfg-provider" value={provider} options={providers} onChange={handleProviderChange} />
+              </div>
+              <div>
+                <label className="block text-sm font-medium text-slate-600 dark:text-slate-400 mb-1.5">{t('config_model_name')}</label>
+                <Dropdown id="cfg-model" value={showCustom ? t('config_custom_option') : model} options={getModels()} onChange={handleModelChange} />
+                {showCustom && (
+                  <input
+                    type="text" value={customModel} onChange={(e) => setCustomModel(e.target.value)}
+                    className="mt-2 w-full px-3 py-2 rounded-lg border border-slate-200 dark:border-slate-600 bg-slate-50 dark:bg-white/5 text-sm text-slate-800 dark:text-slate-100 focus:outline-none focus:border-primary-500 font-mono transition-colors"
+                    placeholder={t('config_custom_model_hint')}
+                  />
+                )}
+              </div>
+              <div>
+                <label className="block text-sm font-medium text-slate-600 dark:text-slate-400 mb-1.5">API Key</label>
+                <div className="relative">
+                  <input
+                    type="text" value={apiKey} onChange={(e) => setApiKey(e.target.value)}
+                    className={`w-full px-3 py-2 pr-10 rounded-lg border border-slate-200 dark:border-slate-600 bg-slate-50 dark:bg-white/5 text-sm text-slate-800 dark:text-slate-100 focus:outline-none focus:border-primary-500 font-mono transition-colors ${keyMasked ? 'cfg-key-masked' : ''}`}
+                    placeholder="sk-..."
+                  />
+                  <button
+                    type="button" onClick={() => setKeyMasked(!keyMasked)}
+                    className="absolute right-2.5 top-1/2 -translate-y-1/2 text-slate-400 hover:text-slate-600 dark:hover:text-slate-300 cursor-pointer transition-colors p-1"
+                  >
+                    <i className={`fas ${keyMasked ? 'fa-eye' : 'fa-eye-slash'} text-xs`} />
+                  </button>
+                </div>
+              </div>
+              {apiBase && (
+                <div>
+                  <label className="block text-sm font-medium text-slate-600 dark:text-slate-400 mb-1.5">API Base</label>
+                  <input
+                    type="text" value={apiBase} onChange={(e) => setApiBase(e.target.value)}
+                    className="w-full px-3 py-2 rounded-lg border border-slate-200 dark:border-slate-600 bg-slate-50 dark:bg-white/5 text-sm text-slate-800 dark:text-slate-100 focus:outline-none focus:border-primary-500 font-mono transition-colors"
+                    placeholder="https://..."
+                  />
+                </div>
+              )}
+              <div className="flex items-center justify-end gap-3 pt-1">
+                <span className={`text-xs text-primary-500 transition-opacity duration-300 ${modelStatus ? 'opacity-100' : 'opacity-0'}`}>{modelStatus}</span>
+                <button onClick={saveModelConfig}
+                        className="px-4 py-2 rounded-lg bg-primary-500 hover:bg-primary-600 text-white text-sm font-medium cursor-pointer transition-colors duration-150">
+                  {t('config_save')}
+                </button>
+              </div>
+            </div>
+          </div>
+
+          {/* Agent Config Card */}
+          <div className="bg-white dark:bg-[#1A1A1A] rounded-xl border border-slate-200 dark:border-white/10 p-6">
+            <div className="flex items-center gap-3 mb-5">
+              <div className="w-9 h-9 rounded-lg bg-emerald-50 dark:bg-emerald-900/30 flex items-center justify-center">
+                <i className="fas fa-robot text-emerald-500 text-sm" />
+              </div>
+              <h3 className="font-semibold text-slate-800 dark:text-slate-100">{t('config_agent')}</h3>
+            </div>
+            <div className="space-y-4">
+              <div>
+                <label className="block text-sm font-medium text-slate-600 dark:text-slate-400 mb-1.5">{t('config_max_tokens')}</label>
+                <input type="number" min={1000} max={200000} step={1000} value={maxTokens}
+                       onChange={(e) => setMaxTokens(parseInt(e.target.value) || 0)}
+                       className="w-full px-3 py-2 rounded-lg border border-slate-200 dark:border-slate-600 bg-slate-50 dark:bg-white/5 text-sm text-slate-800 dark:text-slate-100 focus:outline-none focus:border-primary-500 font-mono transition-colors" />
+              </div>
+              <div>
+                <label className="block text-sm font-medium text-slate-600 dark:text-slate-400 mb-1.5">{t('config_max_turns')}</label>
+                <input type="number" min={1} max={100} step={1} value={maxTurns}
+                       onChange={(e) => setMaxTurns(parseInt(e.target.value) || 0)}
+                       className="w-full px-3 py-2 rounded-lg border border-slate-200 dark:border-slate-600 bg-slate-50 dark:bg-white/5 text-sm text-slate-800 dark:text-slate-100 focus:outline-none focus:border-primary-500 font-mono transition-colors" />
+              </div>
+              <div>
+                <label className="block text-sm font-medium text-slate-600 dark:text-slate-400 mb-1.5">{t('config_max_steps')}</label>
+                <input type="number" min={1} max={50} step={1} value={maxSteps}
+                       onChange={(e) => setMaxSteps(parseInt(e.target.value) || 0)}
+                       className="w-full px-3 py-2 rounded-lg border border-slate-200 dark:border-slate-600 bg-slate-50 dark:bg-white/5 text-sm text-slate-800 dark:text-slate-100 focus:outline-none focus:border-primary-500 font-mono transition-colors" />
+              </div>
+              <div className="flex items-center justify-end gap-3 pt-1">
+                <span className={`text-xs text-primary-500 transition-opacity duration-300 ${agentStatus ? 'opacity-100' : 'opacity-0'}`}>{agentStatus}</span>
+                <button onClick={saveAgentConfig}
+                        className="px-4 py-2 rounded-lg bg-primary-500 hover:bg-primary-600 text-white text-sm font-medium cursor-pointer transition-colors duration-150">
+                  {t('config_save')}
+                </button>
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  )
+}
+
+export default ConfigPage
--- a/desktop/src/renderer/src/pages/LogsPage.tsx
+++ b/desktop/src/renderer/src/pages/LogsPage.tsx
@@ -0,0 +1,104 @@
+import React, { useState, useEffect, useRef } from 'react'
+import { t } from '../i18n'
+import apiClient from '../api/client'
+
+interface LogsPageProps {
+  baseUrl: string
+}
+
+const LogsPage: React.FC<LogsPageProps> = ({ baseUrl }) => {
+  const [logs, setLogs] = useState<string[]>([])
+  const [autoScroll, setAutoScroll] = useState(true)
+  const containerRef = useRef<HTMLDivElement>(null)
+
+  useEffect(() => {
+    apiClient.setBaseUrl(baseUrl)
+
+    const es = apiClient.createLogStream()
+
+    es.onmessage = (event) => {
+      try {
+        const data = JSON.parse(event.data)
+        if (data.type === 'init' && data.content) {
+          setLogs(data.content.split('\n').filter(Boolean))
+        } else if (data.type === 'line' && data.content) {
+          setLogs((prev) => {
+            const next = [...prev, data.content]
+            if (next.length > 2000) return next.slice(-1500)
+            return next
+          })
+        }
+      } catch { /* ignore */ }
+    }
+
+    return () => es.close()
+  }, [baseUrl])
+
+  useEffect(() => {
+    if (autoScroll && containerRef.current) {
+      containerRef.current.scrollTop = containerRef.current.scrollHeight
+    }
+  }, [logs, autoScroll])
+
+  const handleScroll = () => {
+    if (!containerRef.current) return
+    const { scrollTop, scrollHeight, clientHeight } = containerRef.current
+    setAutoScroll(scrollHeight - scrollTop - clientHeight < 50)
+  }
+
+  const getLogColor = (line: string) => {
+    if (line.includes('ERROR') || line.includes('error')) return 'text-red-400'
+    if (line.includes('WARNING') || line.includes('warn')) return 'text-amber-400'
+    if (line.includes('DEBUG')) return 'text-slate-500'
+    return 'text-slate-300'
+  }
+
+  return (
+    <div className="flex-1 overflow-y-auto p-6">
+      <div className="max-w-5xl mx-auto">
+        <div className="flex items-center justify-between mb-6">
+          <div>
+            <h2 className="text-xl font-bold text-slate-800 dark:text-slate-100">{t('logs_title')}</h2>
+            <p className="text-sm text-slate-500 dark:text-slate-400 mt-1">{t('logs_desc')}</p>
+          </div>
+        </div>
+
+        {/* Terminal-style log viewer */}
+        <div className="bg-slate-900 rounded-xl border border-slate-700 overflow-hidden shadow-lg">
+          {/* Terminal header */}
+          <div className="flex items-center gap-2 px-4 py-2.5 bg-slate-800 border-b border-slate-700">
+            <div className="flex gap-1.5">
+              <span className="w-3 h-3 rounded-full bg-red-500/80" />
+              <span className="w-3 h-3 rounded-full bg-amber-500/80" />
+              <span className="w-3 h-3 rounded-full bg-emerald-500/80" />
+            </div>
+            <span className="text-xs text-slate-400 ml-2 font-mono">run.log</span>
+            <div className="flex-1" />
+            <div className="flex items-center gap-1.5">
+              <span className="w-2 h-2 rounded-full bg-emerald-500 animate-pulse" />
+              <span className="text-xs text-slate-500">{t('logs_live')}</span>
+            </div>
+          </div>
+
+          {/* Log content */}
+          <div
+            ref={containerRef}
+            onScroll={handleScroll}
+            className="p-4 overflow-y-auto font-mono text-xs leading-relaxed whitespace-pre-wrap break-all"
+            style={{ height: 'calc(100vh - 272px)' }}
+          >
+            {logs.length > 0 ? (
+              logs.map((line, i) => (
+                <div key={i} className={getLogColor(line)}>{line}</div>
+              ))
+            ) : (
+              <p className="text-slate-500">{t('logs_connecting')}</p>
+            )}
+          </div>
+        </div>
+      </div>
+    </div>
+  )
+}
+
+export default LogsPage
--- a/desktop/src/renderer/src/pages/MemoryPage.tsx
+++ b/desktop/src/renderer/src/pages/MemoryPage.tsx
@@ -0,0 +1,142 @@
+import React, { useState, useEffect } from 'react'
+import { t } from '../i18n'
+import apiClient from '../api/client'
+import type { MemoryItem } from '../types'
+
+interface MemoryPageProps {
+  baseUrl: string
+}
+
+const formatSize = (bytes: number): string => {
+  if (bytes < 1024) return bytes + ' B'
+  if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB'
+  return (bytes / (1024 * 1024)).toFixed(1) + ' MB'
+}
+
+const formatTime = (ts: number): string => {
+  return new Date(ts * 1000).toLocaleString()
+}
+
+const MemoryPage: React.FC<MemoryPageProps> = ({ baseUrl }) => {
+  const [items, setItems] = useState<MemoryItem[]>([])
+  const [total, setTotal] = useState(0)
+  const [loading, setLoading] = useState(true)
+  const [viewing, setViewing] = useState<string | null>(null)
+  const [content, setContent] = useState('')
+  const [loadingContent, setLoadingContent] = useState(false)
+
+  useEffect(() => {
+    apiClient.setBaseUrl(baseUrl)
+    loadMemory()
+  }, [baseUrl])
+
+  const loadMemory = async () => {
+    try {
+      setLoading(true)
+      const data = await apiClient.getMemoryList()
+      setItems(data.list || [])
+      setTotal(data.total)
+    } catch (err) {
+      console.error('Failed to load memory:', err)
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  const viewFile = async (filename: string) => {
+    setViewing(filename)
+    setLoadingContent(true)
+    try {
+      const text = await apiClient.getMemoryContent(filename)
+      setContent(text)
+    } catch (err) {
+      setContent(`Failed to load: ${err}`)
+    } finally {
+      setLoadingContent(false)
+    }
+  }
+
+  return (
+    <div className="flex-1 overflow-y-auto p-6">
+      <div className="max-w-4xl mx-auto">
+        {!viewing ? (
+          /* List panel */
+          <>
+            <div className="flex items-center justify-between mb-6">
+              <div>
+                <h2 className="text-xl font-bold text-slate-800 dark:text-slate-100">{t('memory_title')}</h2>
+                <p className="text-sm text-slate-500 dark:text-slate-400 mt-1">{t('memory_desc')}</p>
+              </div>
+            </div>
+            {loading ? (
+              <div className="flex flex-col items-center justify-center py-20">
+                <div className="w-16 h-16 rounded-2xl bg-purple-50 dark:bg-purple-900/20 flex items-center justify-center mb-4">
+                  <i className="fas fa-brain text-purple-400 text-xl" />
+                </div>
+                <p className="text-slate-500 dark:text-slate-400 font-medium">{t('memory_loading')}</p>
+                <p className="text-sm text-slate-400 dark:text-slate-500 mt-1">{t('memory_loading_desc')}</p>
+              </div>
+            ) : items.length > 0 ? (
+              <div className="bg-white dark:bg-[#1A1A1A] rounded-xl border border-slate-200 dark:border-white/10 overflow-hidden">
+                <table className="w-full">
+                  <thead>
+                    <tr className="border-b border-slate-200 dark:border-white/10">
+                      <th className="text-left px-4 py-3 text-xs font-semibold uppercase tracking-wider text-slate-500 dark:text-slate-400">{t('memory_col_name')}</th>
+                      <th className="text-left px-4 py-3 text-xs font-semibold uppercase tracking-wider text-slate-500 dark:text-slate-400">{t('memory_col_size')}</th>
+                      <th className="text-left px-4 py-3 text-xs font-semibold uppercase tracking-wider text-slate-500 dark:text-slate-400">{t('memory_col_updated')}</th>
+                    </tr>
+                  </thead>
+                  <tbody>
+                    {items.map((item) => (
+                      <tr
+                        key={item.filename}
+                        onClick={() => viewFile(item.filename)}
+                        className="border-b border-slate-100 dark:border-white/5 hover:bg-slate-50 dark:hover:bg-white/5 cursor-pointer transition-colors"
+                      >
+                        <td className="px-4 py-3 text-sm font-medium text-slate-700 dark:text-slate-200 font-mono">{item.filename}</td>
+                        <td className="px-4 py-3 text-sm text-slate-500 dark:text-slate-400">{formatSize(item.size)}</td>
+                        <td className="px-4 py-3 text-sm text-slate-500 dark:text-slate-400">{formatTime(item.modified)}</td>
+                      </tr>
+                    ))}
+                  </tbody>
+                </table>
+              </div>
+            ) : (
+              <div className="flex flex-col items-center justify-center py-20">
+                <div className="w-16 h-16 rounded-2xl bg-purple-50 dark:bg-purple-900/20 flex items-center justify-center mb-4">
+                  <i className="fas fa-brain text-purple-400 text-xl" />
+                </div>
+                <p className="text-slate-500 dark:text-slate-400 font-medium">{t('memory_loading')}</p>
+              </div>
+            )}
+          </>
+        ) : (
+          /* File viewer */
+          <>
+            <div className="flex items-center gap-3 mb-6">
+              <button
+                onClick={() => setViewing(null)}
+                className="flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-sm text-slate-500 dark:text-slate-400 hover:bg-slate-100 dark:hover:bg-white/10 border border-slate-200 dark:border-white/10 transition-colors cursor-pointer"
+              >
+                <i className="fas fa-arrow-left text-xs" />
+                <span>{t('memory_back')}</span>
+              </button>
+              <h2 className="text-base font-semibold text-slate-800 dark:text-slate-100 font-mono truncate">{viewing}</h2>
+            </div>
+            <div className="bg-white dark:bg-[#1A1A1A] rounded-xl border border-slate-200 dark:border-white/10 overflow-hidden">
+              <div className="p-5 overflow-y-auto text-sm msg-content text-slate-700 dark:text-slate-200" style={{ maxHeight: 'calc(100vh - 220px)' }}>
+                {loadingContent ? (
+                  <div className="text-slate-400"><i className="fas fa-spinner fa-spin mr-2" />Loading...</div>
+                ) : (
+                  <pre className="whitespace-pre-wrap">{content}</pre>
+                )}
+              </div>
+            </div>
+          </>
+        )}
+      </div>
+    </div>
+  )
+}
+
+export default MemoryPage
--- a/desktop/src/renderer/src/pages/SkillsPage.tsx
+++ b/desktop/src/renderer/src/pages/SkillsPage.tsx
@@ -0,0 +1,139 @@
+import React, { useState, useEffect } from 'react'
+import { t } from '../i18n'
+import apiClient from '../api/client'
+import type { ToolInfo, SkillInfo } from '../types'
+
+interface SkillsPageProps {
+  baseUrl: string
+}
+
+const SkillsPage: React.FC<SkillsPageProps> = ({ baseUrl }) => {
+  const [tools, setTools] = useState<ToolInfo[]>([])
+  const [skills, setSkills] = useState<SkillInfo[]>([])
+  const [loading, setLoading] = useState(true)
+  const [toggling, setToggling] = useState<string | null>(null)
+
+  useEffect(() => {
+    apiClient.setBaseUrl(baseUrl)
+    loadData()
+  }, [baseUrl])
+
+  const loadData = async () => {
+    try {
+      setLoading(true)
+      const [toolsData, skillsData] = await Promise.all([apiClient.getTools(), apiClient.getSkills()])
+      setTools(toolsData || [])
+      setSkills(skillsData || [])
+    } catch (err) {
+      console.error('Failed to load skills:', err)
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  const handleToggle = async (skill: SkillInfo) => {
+    setToggling(skill.name)
+    try {
+      await apiClient.toggleSkill(skill.name, skill.enabled ? 'close' : 'open')
+      setSkills((prev) => prev.map((s) => (s.name === skill.name ? { ...s, enabled: !s.enabled } : s)))
+    } catch (err) {
+      console.error('Toggle failed:', err)
+    } finally {
+      setToggling(null)
+    }
+  }
+
+  return (
+    <div className="flex-1 overflow-y-auto p-6">
+      <div className="max-w-4xl mx-auto">
+        <div className="flex items-center justify-between mb-6">
+          <div>
+            <h2 className="text-xl font-bold text-slate-800 dark:text-slate-100">{t('skills_title')}</h2>
+            <p className="text-sm text-slate-500 dark:text-slate-400 mt-1">{t('skills_desc')}</p>
+          </div>
+        </div>
+
+        {/* Built-in Tools */}
+        <div className="mb-8">
+          <div className="flex items-center gap-2 mb-3">
+            <span className="text-xs font-semibold uppercase tracking-wider text-slate-400 dark:text-slate-500">{t('tools_section_title')}</span>
+            {tools.length > 0 && (
+              <span className="px-2 py-0.5 rounded-full text-xs bg-slate-100 dark:bg-white/10 text-slate-500 dark:text-slate-400">{tools.length}</span>
+            )}
+          </div>
+          {loading ? (
+            <div className="flex items-center gap-2 py-4 text-slate-400 dark:text-slate-500 text-sm">
+              <i className="fas fa-spinner fa-spin text-xs" />
+              <span>{t('tools_loading')}</span>
+            </div>
+          ) : tools.length > 0 ? (
+            <div className="grid gap-3 sm:grid-cols-2">
+              {tools.map((tool) => (
+                <div key={tool.name} className="bg-white dark:bg-[#1A1A1A] border border-slate-200 dark:border-white/10 rounded-xl p-4">
+                  <div className="flex items-center gap-2 mb-1.5">
+                    <i className="fas fa-cog text-xs text-primary-400" />
+                    <span className="text-sm font-medium text-slate-700 dark:text-slate-200">{tool.display_name || tool.name}</span>
+                  </div>
+                  <p className="text-xs text-slate-500 dark:text-slate-400 leading-relaxed">{tool.description}</p>
+                </div>
+              ))}
+            </div>
+          ) : null}
+        </div>
+
+        {/* Skills */}
+        <div>
+          <div className="flex items-center gap-2 mb-3">
+            <span className="text-xs font-semibold uppercase tracking-wider text-slate-400 dark:text-slate-500">{t('skills_section_title')}</span>
+            {skills.length > 0 && (
+              <span className="px-2 py-0.5 rounded-full text-xs bg-slate-100 dark:bg-white/10 text-slate-500 dark:text-slate-400">{skills.length}</span>
+            )}
+          </div>
+          {loading ? (
+            <div className="flex flex-col items-center justify-center py-12">
+              <div className="w-14 h-14 rounded-2xl bg-amber-50 dark:bg-amber-900/20 flex items-center justify-center mb-3">
+                <i className="fas fa-bolt text-amber-400 text-lg" />
+              </div>
+              <p className="text-slate-500 dark:text-slate-400 font-medium">{t('skills_loading')}</p>
+              <p className="text-sm text-slate-400 dark:text-slate-500 mt-1">{t('skills_loading_desc')}</p>
+            </div>
+          ) : skills.length > 0 ? (
+            <div className="grid gap-4 sm:grid-cols-2">
+              {skills.map((skill) => (
+                <div key={skill.name} className="bg-white dark:bg-[#1A1A1A] border border-slate-200 dark:border-white/10 rounded-xl p-4">
+                  <div className="flex items-center justify-between mb-2">
+                    <div className="flex items-center gap-2">
+                      <i className="fas fa-bolt text-xs text-amber-400" />
+                      <span className="text-sm font-medium text-slate-700 dark:text-slate-200">{skill.display_name || skill.name}</span>
+                    </div>
+                    <button
+                      onClick={() => handleToggle(skill)}
+                      disabled={toggling === skill.name}
+                      className={`relative inline-flex h-6 w-11 items-center rounded-full transition-colors cursor-pointer ${
+                        skill.enabled ? 'bg-primary-400' : 'bg-slate-300 dark:bg-slate-600'
+                      }`}
+                    >
+                      <span className={`inline-block h-4 w-4 transform rounded-full bg-white transition-transform ${
+                        skill.enabled ? 'translate-x-6' : 'translate-x-1'
+                      }`} />
+                    </button>
+                  </div>
+                  <p className="text-xs text-slate-500 dark:text-slate-400 leading-relaxed">{skill.description}</p>
+                </div>
+              ))}
+            </div>
+          ) : (
+            <div className="flex flex-col items-center justify-center py-12">
+              <div className="w-14 h-14 rounded-2xl bg-amber-50 dark:bg-amber-900/20 flex items-center justify-center mb-3">
+                <i className="fas fa-bolt text-amber-400 text-lg" />
+              </div>
+              <p className="text-slate-500 dark:text-slate-400 font-medium">{t('skills_loading')}</p>
+            </div>
+          )}
+        </div>
+      </div>
+    </div>
+  )
+}
+
+export default SkillsPage
--- a/desktop/src/renderer/src/pages/TasksPage.tsx
+++ b/desktop/src/renderer/src/pages/TasksPage.tsx
@@ -0,0 +1,86 @@
+import React, { useState, useEffect } from 'react'
+import { t } from '../i18n'
+import apiClient from '../api/client'
+import type { SchedulerTask } from '../types'
+
+interface TasksPageProps {
+  baseUrl: string
+}
+
+const TasksPage: React.FC<TasksPageProps> = ({ baseUrl }) => {
+  const [tasks, setTasks] = useState<SchedulerTask[]>([])
+  const [loading, setLoading] = useState(true)
+
+  useEffect(() => {
+    apiClient.setBaseUrl(baseUrl)
+    loadTasks()
+  }, [baseUrl])
+
+  const loadTasks = async () => {
+    try {
+      setLoading(true)
+      const data = await apiClient.getSchedulerTasks()
+      setTasks(data || [])
+    } catch (err) {
+      console.error('Failed to load tasks:', err)
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  return (
+    <div className="flex-1 overflow-y-auto p-6">
+      <div className="max-w-4xl mx-auto">
+        <div className="flex items-center justify-between mb-6">
+          <div>
+            <h2 className="text-xl font-bold text-slate-800 dark:text-slate-100">{t('tasks_title')}</h2>
+            <p className="text-sm text-slate-500 dark:text-slate-400 mt-1">{t('tasks_desc')}</p>
+          </div>
+        </div>
+
+        {loading ? (
+          <div className="flex flex-col items-center justify-center py-20">
+            <div className="w-16 h-16 rounded-2xl bg-rose-50 dark:bg-rose-900/20 flex items-center justify-center mb-4">
+              <i className="fas fa-clock text-rose-400 text-xl" />
+            </div>
+            <p className="text-slate-500 dark:text-slate-400 font-medium">Loading...</p>
+          </div>
+        ) : tasks.length > 0 ? (
+          <div className="grid gap-4">
+            {tasks.map((task) => (
+              <div key={task.id} className="bg-white dark:bg-[#1A1A1A] border border-slate-200 dark:border-white/10 rounded-xl p-4">
+                <div className="flex items-center justify-between mb-2">
+                  <div className="flex items-center gap-2">
+                    <i className="fas fa-clock text-sm text-rose-400" />
+                    <span className="text-sm font-medium text-slate-700 dark:text-slate-200">{task.name}</span>
+                  </div>
+                  <span className={`text-xs px-2 py-0.5 rounded-full ${
+                    task.enabled
+                      ? 'bg-primary-50 dark:bg-primary-900/20 text-primary-600 dark:text-primary-400'
+                      : 'bg-slate-100 dark:bg-white/10 text-slate-500 dark:text-slate-400'
+                  }`}>
+                    {task.enabled ? t('tasks_active') : t('tasks_paused')}
+                  </span>
+                </div>
+                <div className="flex items-center gap-4 text-xs text-slate-500 dark:text-slate-400">
+                  <span>Cron: <code className="bg-slate-100 dark:bg-white/10 px-1.5 py-0.5 rounded font-mono">{task.cron}</code></span>
+                  {task.next_run && <span>Next: {task.next_run}</span>}
+                  {task.last_run && <span>Last: {task.last_run}</span>}
+                </div>
+              </div>
+            ))}
+          </div>
+        ) : (
+          <div className="flex flex-col items-center justify-center py-20">
+            <div className="w-16 h-16 rounded-2xl bg-rose-50 dark:bg-rose-900/20 flex items-center justify-center mb-4">
+              <i className="fas fa-clock text-rose-400 text-xl" />
+            </div>
+            <p className="text-slate-500 dark:text-slate-400 font-medium">{t('tasks_empty')}</p>
+          </div>
+        )}
+      </div>
+    </div>
+  )
+}
+
+export default TasksPage
--- a/desktop/src/renderer/src/types.ts
+++ b/desktop/src/renderer/src/types.ts
@@ -0,0 +1,108 @@
+export interface ElectronAPI {
+  getBackendPort: () => Promise<number | null>
+  getBackendStatus: () => Promise<string>
+  restartBackend: () => Promise<boolean>
+  selectDirectory: () => Promise<string | null>
+  selectFile: (filters?: { name: string; extensions: string[] }[]) => Promise<string | null>
+  onBackendStatus: (callback: (data: BackendStatusEvent) => void) => void
+  onBackendLog: (callback: (line: string) => void) => void
+  platform: string
+}
+
+export interface BackendStatusEvent {
+  status: 'ready' | 'error' | 'starting'
+  port?: number
+  error?: string
+}
+
+export interface ChatMessage {
+  id: string
+  role: 'user' | 'assistant'
+  content: string
+  timestamp: number
+  attachments?: Attachment[]
+  toolCalls?: ToolCall[]
+  isStreaming?: boolean
+}
+
+export interface Attachment {
+  file_path: string
+  file_name: string
+  file_type: 'image' | 'video' | 'file'
+  preview_url?: string
+}
+
+export interface ToolCall {
+  type: 'tool_start' | 'tool_end'
+  tool: string
+  arguments?: Record<string, unknown>
+  result?: string
+  status?: string
+  execution_time?: number
+}
+
+export interface ConfigData {
+  use_agent: boolean
+  title: string
+  model: string
+  bot_type: string
+  use_linkai: boolean
+  channel_type: string
+  agent_max_context_tokens: number
+  agent_max_context_turns: number
+  agent_max_steps: number
+  api_bases: Record<string, string>
+  api_keys: Record<string, string>
+  providers: Record<string, unknown>
+}
+
+export interface ChannelInfo {
+  name: string
+  label: Record<string, string>
+  icon: string
+  color: string
+  active: boolean
+  fields: ChannelField[]
+}
+
+export interface ChannelField {
+  key: string
+  label: Record<string, string>
+  type: string
+  required?: boolean
+  placeholder?: Record<string, string>
+}
+
+export interface SkillInfo {
+  name: string
+  display_name: string
+  description: string
+  enabled: boolean
+}
+
+export interface ToolInfo {
+  name: string
+  display_name: string
+  description: string
+}
+
+export interface MemoryItem {
+  filename: string
+  modified: number
+  size: number
+}
+
+export interface SchedulerTask {
+  id: string
+  name: string
+  cron: string
+  enabled: boolean
+  last_run?: string
+  next_run?: string
+}
+
+declare global {
+  interface Window {
+    electronAPI?: ElectronAPI
+  }
+}