desktop: improve channels page and titlebar UI

desktop/src/renderer/src/App.tsx

@@ -1,6 +1,6 @@
 import React, { useState, useCallback, useEffect } from 'react'
 import { Routes, Route, useLocation, useNavigate } from 'react-router-dom'
-import { PanelLeftOpen } from 'lucide-react'
+import { History } from 'lucide-react'
 import NavRail from './layout/NavRail'
 import SessionList from './layout/SessionList'
 import WindowControls from './layout/WindowControls'
@@ -27,8 +27,8 @@ const App: React.FC = () => {
   const backend = useBackend()
   const location = useLocation()
   const navigate = useNavigate()
-  const { isWin } = usePlatform()
-  const { sessionsCollapsed, toggleSessions } = useUIStore()
+  const { isWin, isMac } = usePlatform()
+  const { sessionsCollapsed, toggleSessions, navCollapsed } = useUIStore()
   const onboardingOpen = useOnboardingStore((s) => s.open)
   const maybeOpenOnboarding = useOnboardingStore((s) => s.maybeOpen)
   const [, forceUpdate] = useState(0)
@@ -107,10 +107,13 @@ const App: React.FC = () => {
           {isChat && sessionsCollapsed && (
             <button
               onClick={toggleSessions}
-              title={t('nav_expand')}
-              className="titlebar-no-drag inline-flex items-center justify-center w-7 h-7 rounded-btn text-content-tertiary hover:text-content hover:bg-surface-2 cursor-pointer transition-colors"
+              title={t('session_history')}
+              // Keep aligned with the SessionList history button: only nudge
+              // right of the macOS traffic lights when the nav rail is collapsed
+              // (otherwise the lights stay within the rail and don't overlap).
+              className={`titlebar-no-drag inline-flex items-center justify-center w-7 h-7 rounded-btn text-content-tertiary hover:text-content hover:bg-surface-2 cursor-pointer transition-colors ${isMac ? 'mt-1' : ''} ${isMac && navCollapsed ? 'ml-2' : ''}`}
             >
-              <PanelLeftOpen size={16} />
+              <History size={16} />
             </button>
           )}
           <div className="flex-1 min-w-0" />

desktop/src/renderer/src/components/ChatInput.tsx

@@ -3,14 +3,7 @@ import { Plus, Paperclip, Square, X, File as FileIcon, Loader2, Trash2 } from 'l
 import { t } from '../i18n'
 import type { Attachment } from '../types'
 import apiClient from '../api/client'
-
-// Solid paper-plane icon (Font Awesome's fa-paper-plane path) so the send
-// button matches the web console exactly.
-const PaperPlaneIcon: React.FC<{ size?: number }> = ({ size = 16 }) => (
-  <svg width={size} height={size} viewBox="0 0 512 512" fill="currentColor" aria-hidden="true">
-    <path d="M498.1 5.6c10.1 7 15.4 19.1 13.5 31.2l-64 416c-1.5 9.7-7.4 18.2-16 23s-18.9 5.4-28 1.6L284 427.7l-68.5 74.1c-8.9 9.7-22.9 12.9-35.2 8.1S160 493.2 160 480l0-83.6c0-4 1.5-7.8 4.2-10.8L331.8 202.8c5.8-6.3 5.6-16-.4-22s-15.7-6.4-22-.7L106 360.8 17.7 316.6C7.1 311.3 .3 300.7 0 288.9s5.9-22.8 16.1-28.7l448-256c10.7-6.1 23.9-5.5 34 1.4z"/>
-  </svg>
-)
+import { PaperPlaneIcon } from './icons'
 
 export type ChatInputHandle = (text: string, attachments: Attachment[]) => void
 

desktop/src/renderer/src/components/icons.tsx

@@ -0,0 +1,16 @@
+import React from 'react'
+
+// Solid paper-plane icon (Font Awesome's fa-paper-plane path) so the send
+// button and the feishu/telegram channels match the web console exactly.
+export const PaperPlaneIcon: React.FC<{ size?: number; className?: string }> = ({ size = 16, className }) => (
+  <svg
+    width={size}
+    height={size}
+    viewBox="0 0 512 512"
+    fill="currentColor"
+    aria-hidden="true"
+    className={className}
+  >
+    <path d="M498.1 5.6c10.1 7 15.4 19.1 13.5 31.2l-64 416c-1.5 9.7-7.4 18.2-16 23s-18.9 5.4-28 1.6L284 427.7l-68.5 74.1c-8.9 9.7-22.9 12.9-35.2 8.1S160 493.2 160 480l0-83.6c0-4 1.5-7.8 4.2-10.8L331.8 202.8c5.8-6.3 5.6-16-.4-22s-15.7-6.4-22-.7L106 360.8 17.7 316.6C7.1 311.3 .3 300.7 0 288.9s5.9-22.8 16.1-28.7l448-256c10.7-6.1 23.9-5.5 34 1.4z" />
+  </svg>
+)

desktop/src/renderer/src/i18n.ts

@@ -68,6 +68,7 @@ const translations: Record<string, Record<string, string>> = {
     knowledge_drop_hint: '拖放 .md / .txt 文件到此导入',
     nav_expand: '展开侧栏',
     nav_collapse: '收起侧栏',
+    session_history: '历史会话',
     update_available: '发现新版本',
     update_download: '下载更新',
     update_downloading: '正在下载',
@@ -259,7 +260,10 @@ const translations: Record<string, Record<string, string>> = {
     memory_next: '下一页',
     channels_title: '通道管理',
     channels_desc: '查看和管理消息通道',
-    channels_add: '添加通道',
+    channels_add: '接入通道',
+    channels_select_label: '选择要接入的通道',
+    channels_select_placeholder: '请选择通道...',
+    channels_add_close: '关闭',
     channels_connected: '已连接',
     channels_disconnected: '未连接',
     channels_connect: '连接',
@@ -424,6 +428,7 @@ const translations: Record<string, Record<string, string>> = {
     menu_settings: 'Settings',
     nav_expand: 'Expand sidebar',
     nav_collapse: 'Collapse sidebar',
+    session_history: 'Chat history',
     update_available: 'New version available',
     update_download: 'Download update',
     update_downloading: 'Downloading',
@@ -616,6 +621,9 @@ const translations: Record<string, Record<string, string>> = {
     channels_title: 'Channels',
     channels_desc: 'View and manage messaging channels',
     channels_add: 'Add channel',
+    channels_select_label: 'Select a channel to add',
+    channels_select_placeholder: 'Select a channel...',
+    channels_add_close: 'Close',
     channels_connected: 'Connected',
     channels_disconnected: 'Disconnected',
     channels_connect: 'Connect',

desktop/src/renderer/src/layout/NavRail.tsx

@@ -57,9 +57,9 @@ const NavRail: React.FC<NavRailProps> = ({ onLangChange }) => {
 
   return (
     <aside className={`${width} flex flex-col flex-shrink-0 h-full bg-base transition-[width] duration-200`}>
-      {/* Top: full-width drag strip; reserve space for macOS traffic lights.
-          No right border here so the divider doesn't cut across the traffic lights. */}
-      <div className="titlebar-drag h-[44px] flex-shrink-0" />
+      {/* Top: full-width drag strip; bottom border continues the header divider
+          across the whole window. No right border so it doesn't cut the lights. */}
+      <div className="titlebar-drag h-[44px] flex-shrink-0 border-b border-default" />
 
       {/* Content area carries the right divider, starting below the titlebar */}
       <div className="flex-1 flex flex-col min-h-0 border-r border-default">

desktop/src/renderer/src/layout/SessionList.tsx

@@ -1,8 +1,9 @@
 import React, { useEffect, useMemo, useState } from 'react'
-import { Plus, MessageSquare, Pencil, Trash2, Check, X, PanelLeftClose } from 'lucide-react'
+import { Plus, MessageSquare, Pencil, Trash2, Check, X, History } from 'lucide-react'
 import { t } from '../i18n'
 import { useSessionStore } from '../store/sessionStore'
 import { useUIStore } from '../store/uiStore'
+import { usePlatform } from '../hooks/usePlatform'
 import type { SessionItem } from '../types'
 
 function groupByTime(sessions: SessionItem[]): { label: string; items: SessionItem[] }[] {
@@ -32,6 +33,14 @@ const SessionList: React.FC = () => {
   const { sessions, activeId, loading, loadSessions, loadMore, hasMore, setActive, newSession, rename, remove } =
     useSessionStore()
   const toggleSessions = useUIStore((s) => s.toggleSessions)
+  const navCollapsed = useUIStore((s) => s.navCollapsed)
+  const { isMac } = usePlatform()
+  // When the nav rail is collapsed on macOS, the native traffic lights spill
+  // past it, so nudge the history button right to keep it (and its sibling in
+  // the main header) clear of the lights and aligned across states.
+  const trafficOffset = isMac && navCollapsed ? 'ml-2' : ''
+  // Nudge header buttons down a touch to sit level with the macOS traffic lights.
+  const trafficDrop = isMac ? 'mt-1' : ''
   const [editingId, setEditingId] = useState<string | null>(null)
   const [editValue, setEditValue] = useState('')
 
@@ -56,18 +65,18 @@ const SessionList: React.FC = () => {
   return (
     <div className="w-[240px] flex-shrink-0 flex flex-col h-full bg-surface border-r border-default">
       {/* Header */}
-      <div className="flex items-center justify-between px-2 h-[44px] flex-shrink-0 titlebar-drag">
+      <div className="flex items-center justify-between px-2 h-[44px] flex-shrink-0 titlebar-drag border-b border-default">
         <button
           onClick={toggleSessions}
-          title={t('nav_collapse')}
-          className="titlebar-no-drag inline-flex items-center justify-center w-7 h-7 rounded-btn text-content-tertiary hover:text-content hover:bg-surface-2 cursor-pointer transition-colors"
+          title={t('session_history')}
+          className={`titlebar-no-drag inline-flex items-center justify-center w-7 h-7 rounded-btn text-content-tertiary hover:text-content hover:bg-surface-2 cursor-pointer transition-colors ${trafficDrop} ${trafficOffset}`}
         >
-          <PanelLeftClose size={16} />
+          <History size={16} />
         </button>
         <button
           onClick={() => newSession()}
           title={t('session_new')}
-          className="titlebar-no-drag inline-flex items-center gap-1.5 px-2.5 h-7 rounded-btn text-[12px] font-medium text-accent hover:bg-accent-soft cursor-pointer transition-colors"
+          className={`titlebar-no-drag inline-flex items-center gap-1.5 px-2.5 h-7 rounded-btn text-[12px] font-medium text-accent hover:bg-accent-soft cursor-pointer transition-colors ${trafficDrop}`}
         >
           <Plus size={15} />
           {t('session_new')}

desktop/src/renderer/src/pages/ChannelsPage.tsx

@@ -1,14 +1,52 @@
-import React, { useEffect, useMemo, useState } from 'react'
-import { Loader2, Plug, QrCode } from 'lucide-react'
+import React, { useEffect, useMemo, useRef, useState } from 'react'
+import {
+  Loader2,
+  Plug,
+  Plus,
+  X,
+  ChevronDown,
+  Check,
+  MessageCircle,
+  MessageSquare,
+  Bot,
+  Building2,
+  Headset,
+  Hash,
+  AtSign,
+} from 'lucide-react'
 import { t, localizedLabel } from '../i18n'
 import apiClient from '../api/client'
 import type { ChannelInfo, ChannelField } from '../types'
 import { Toggle, Btn } from './settings/primitives'
 import QrLoginModal from '../components/QrLoginModal'
+import { PaperPlaneIcon } from '../components/icons'
 
 // Channels that connect via QR scanning rather than credential fields.
 const QR_PROVIDERS: Record<string, 'weixin' | 'feishu'> = { weixin: 'weixin', feishu: 'feishu' }
 
+// An icon component that takes a `size` prop (lucide icons and our PaperPlaneIcon).
+type IconComponent = React.FC<{ size?: number }>
+
+// Per-channel icon + accent color, mirroring the web console's FontAwesome
+// icon + Tailwind color palette (we use lucide here, with hex colors so the
+// tinted icon background isn't purged by Tailwind's JIT). Feishu/Telegram use
+// the same paper-plane as the web console.
+const CHANNEL_STYLE: Record<string, { Icon: IconComponent; color: string }> = {
+  weixin: { Icon: MessageCircle, color: '#10b981' },
+  feishu: { Icon: PaperPlaneIcon, color: '#3b82f6' },
+  dingtalk: { Icon: MessageSquare, color: '#3b82f6' },
+  wecom_bot: { Icon: Bot, color: '#10b981' },
+  qq: { Icon: MessageCircle, color: '#3b82f6' },
+  wechatcom_app: { Icon: Building2, color: '#10b981' },
+  wechat_kf: { Icon: Headset, color: '#10b981' },
+  wechatmp: { Icon: MessageCircle, color: '#10b981' },
+  telegram: { Icon: PaperPlaneIcon, color: '#0ea5e9' },
+  slack: { Icon: Hash, color: '#a855f7' },
+  discord: { Icon: AtSign, color: '#6366f1' },
+}
+
+const channelStyle = (name: string) => CHANNEL_STYLE[name] ?? { Icon: Plug, color: '#94a3b8' }
+
 interface ChannelsPageProps {
   baseUrl: string
 }
@@ -19,6 +57,12 @@ const MASK_RE = /\*{2,}/
 const ChannelsPage: React.FC<ChannelsPageProps> = ({ baseUrl }) => {
   const [channels, setChannels] = useState<ChannelInfo[]>([])
   const [loading, setLoading] = useState(true)
+  // Whether the "add channel" panel is open, and the channel chosen in it.
+  // `selected` starts empty so the user must pick a channel themselves.
+  const [addOpen, setAddOpen] = useState(false)
+  const [selected, setSelected] = useState<string>('')
+  const scrollRef = useRef<HTMLDivElement>(null)
+  const panelRef = useRef<HTMLDivElement>(null)
 
   const loadChannels = async () => {
     try {
@@ -45,14 +89,55 @@ const ChannelsPage: React.FC<ChannelsPageProps> = ({ baseUrl }) => {
     return { connected, available }
   }, [channels])
 
+  // If the selected channel got connected (or vanished), clear the selection.
+  useEffect(() => {
+    if (selected && !available.some((c) => c.name === selected)) setSelected('')
+  }, [available, selected])
+
+  const openAdd = () => {
+    setSelected('')
+    setAddOpen(true)
+    // Scroll the new panel into view at the bottom of the list.
+    requestAnimationFrame(() => {
+      panelRef.current?.scrollIntoView({ behavior: 'smooth', block: 'end' })
+    })
+  }
+
+  const addingChannel = available.find((c) => c.name === selected)
+
+  const onAdded = () => {
+    setAddOpen(false)
+    setSelected('')
+    void loadChannels()
+  }
+
+  // Keep the config form in view as it grows after picking a channel.
+  useEffect(() => {
+    if (selected) {
+      requestAnimationFrame(() => {
+        panelRef.current?.scrollIntoView({ behavior: 'smooth', block: 'end' })
+      })
+    }
+  }, [selected])
+
   return (
     <div className="flex-1 flex flex-col min-h-0">
-      <div className="px-6 pt-5 pb-3 flex-shrink-0">
-        <h2 className="text-xl font-bold text-content">{t('channels_title')}</h2>
-        <p className="text-xs text-content-tertiary mt-1">{t('channels_desc')}</p>
+      <div className="px-6 pt-5 pb-3 flex-shrink-0 flex items-start justify-between gap-4">
+        <div>
+          <h2 className="text-xl font-bold text-content">{t('channels_title')}</h2>
+          <p className="text-xs text-content-tertiary mt-1">{t('channels_desc')}</p>
+        </div>
+        {!loading && available.length > 0 && !addOpen && (
+          <Btn variant="primary" onClick={openAdd}>
+            <span className="flex items-center gap-1.5">
+              <Plus size={15} />
+              {t('channels_add')}
+            </span>
+          </Btn>
+        )}
       </div>
 
-      <div className="flex-1 overflow-y-auto border-t border-default">
+      <div ref={scrollRef} className="flex-1 overflow-y-auto border-t border-default">
         <div className="max-w-3xl mx-auto px-6 py-5">
           {loading ? (
             <div className="flex items-center justify-center py-20 text-content-tertiary">
@@ -60,21 +145,37 @@ const ChannelsPage: React.FC<ChannelsPageProps> = ({ baseUrl }) => {
               {t('channels_loading')}
             </div>
           ) : (
-            <div className="space-y-6">
-              <Section title={t('channels_connected_section')}>
-                {connected.length === 0 ? (
-                  <p className="text-sm text-content-tertiary py-2">{t('channels_empty_connected')}</p>
-                ) : (
-                  connected.map((ch) => <ChannelCard key={ch.name} channel={ch} onChanged={loadChannels} />)
-                )}
-              </Section>
+            <div className="space-y-3">
+              {connected.length === 0 && !addOpen ? (
+                <p className="text-sm text-content-tertiary py-2">{t('channels_empty_connected')}</p>
+              ) : (
+                connected.map((ch) => <ChannelCard key={ch.name} channel={ch} onChanged={loadChannels} />)
+              )}
 
-              {available.length > 0 && (
-                <Section title={t('channels_available_section')}>
-                  {available.map((ch) => (
-                    <ChannelCard key={ch.name} channel={ch} onChanged={loadChannels} />
-                  ))}
-                </Section>
+              {/* Add-channel panel lives at the bottom of the list: pick a
+                  channel from the dropdown, then configure/connect it inline. */}
+              {addOpen && available.length > 0 && (
+                <div ref={panelRef} className="rounded-card border border-accent/40 bg-surface p-4 space-y-4">
+                  <div className="flex items-center justify-between gap-3">
+                    <label className="text-sm font-medium text-content">{t('channels_select_label')}</label>
+                    <button
+                      onClick={() => setAddOpen(false)}
+                      className="text-content-tertiary hover:text-content cursor-pointer"
+                      title={t('channels_add_close')}
+                    >
+                      <X size={16} />
+                    </button>
+                  </div>
+                  <ChannelDropdown
+                    channels={available}
+                    value={selected}
+                    onChange={setSelected}
+                    placeholder={t('channels_select_placeholder')}
+                  />
+                  {addingChannel && (
+                    <ChannelCard key={addingChannel.name} channel={addingChannel} onChanged={onAdded} defaultExpanded />
+                  )}
+                </div>
               )}
             </div>
           )}
@@ -84,20 +185,101 @@ const ChannelsPage: React.FC<ChannelsPageProps> = ({ baseUrl }) => {
   )
 }
 
-const Section: React.FC<{ title: string; children: React.ReactNode }> = ({ title, children }) => (
-  <div>
-    <h3 className="text-xs font-semibold uppercase tracking-wider text-content-tertiary mb-2">{title}</h3>
-    <div className="space-y-3">{children}</div>
-  </div>
-)
+// Custom dropdown styled like the web console's `.cfg-dropdown` (rounded,
+// green focus ring, hover/active states) instead of a native <select>.
+const ChannelDropdown: React.FC<{
+  channels: ChannelInfo[]
+  value: string
+  onChange: (name: string) => void
+  placeholder: string
+}> = ({ channels, value, onChange, placeholder }) => {
+  const [open, setOpen] = useState(false)
+  const ref = useRef<HTMLDivElement>(null)
 
-const ChannelCard: React.FC<{ channel: ChannelInfo; onChanged: () => void }> = ({ channel, onChanged }) => {
+  useEffect(() => {
+    if (!open) return
+    const onDoc = (e: MouseEvent) => {
+      if (ref.current && !ref.current.contains(e.target as Node)) setOpen(false)
+    }
+    document.addEventListener('mousedown', onDoc)
+    return () => document.removeEventListener('mousedown', onDoc)
+  }, [open])
+
+  const current = channels.find((c) => c.name === value)
+
+  return (
+    <div ref={ref} className="relative">
+      <button
+        type="button"
+        onClick={() => setOpen((v) => !v)}
+        className={`w-full flex items-center justify-between gap-2 h-10 px-3 rounded-btn border bg-inset text-sm cursor-pointer transition-colors ${
+          open ? 'border-accent ring-2 ring-accent/15' : 'border-strong hover:border-content-tertiary'
+        } ${current ? 'text-content' : 'text-content-tertiary'}`}
+      >
+        {current ? (
+          <span className="flex items-center gap-2 min-w-0">
+            <ChannelIcon name={current.name} size={26} />
+            <span className="truncate">{localizedLabel(current.label)}</span>
+            <span className="text-content-tertiary font-mono text-xs">({current.name})</span>
+          </span>
+        ) : (
+          <span>{placeholder}</span>
+        )}
+        <ChevronDown size={14} className={`flex-shrink-0 text-content-tertiary transition-transform ${open ? 'rotate-180' : ''}`} />
+      </button>
+      {open && (
+        <div className="absolute top-[calc(100%+4px)] left-0 right-0 z-50 max-h-60 overflow-y-auto rounded-btn border border-default bg-elevated shadow-lg p-1">
+          {channels.map((ch) => {
+            const active = ch.name === value
+            return (
+              <button
+                key={ch.name}
+                type="button"
+                onClick={() => {
+                  onChange(ch.name)
+                  setOpen(false)
+                }}
+                className={`w-full flex items-center gap-2.5 px-2.5 py-2 rounded-md text-sm cursor-pointer transition-colors ${
+                  active ? 'bg-accent-soft text-accent font-medium' : 'text-content-secondary hover:bg-surface-2'
+                }`}
+              >
+                <ChannelIcon name={ch.name} size={26} />
+                <span className="truncate">{localizedLabel(ch.label)}</span>
+                <span className="text-content-tertiary font-mono text-xs">({ch.name})</span>
+                {active && <Check size={14} className="ml-auto flex-shrink-0" />}
+              </button>
+            )
+          })}
+        </div>
+      )}
+    </div>
+  )
+}
+
+// A tinted square with the channel's icon (web-console style).
+const ChannelIcon: React.FC<{ name: string; size?: number }> = ({ name, size = 36 }) => {
+  const { Icon, color } = channelStyle(name)
+  return (
+    <span
+      className="rounded-lg flex items-center justify-center flex-shrink-0"
+      style={{ width: size, height: size, backgroundColor: `${color}1a`, color }}
+    >
+      <Icon size={Math.round(size * 0.45)} />
+    </span>
+  )
+}
+
+const ChannelCard: React.FC<{ channel: ChannelInfo; onChanged: () => void; defaultExpanded?: boolean }> = ({
+  channel,
+  onChanged,
+  defaultExpanded = false,
+}) => {
   // Channels with no fields connect purely via QR (e.g. weixin).
   const isQrLogin = channel.fields.length === 0
   // QR provider supported by the desktop scan modal (weixin / feishu).
   const qrProvider = QR_PROVIDERS[channel.name]
   const [showQr, setShowQr] = useState(false)
-  const [expanded, setExpanded] = useState(false)
+  const [expanded, setExpanded] = useState(defaultExpanded)
   const [values, setValues] = useState<Record<string, string>>(() =>
     Object.fromEntries(channel.fields.map((f) => [f.key, f.value != null ? String(f.value) : '']))
   )
@@ -148,15 +330,14 @@ const ChannelCard: React.FC<{ channel: ChannelInfo; onChanged: () => void }> = (
   }
 
   return (
-    <div className="rounded-card border border-default bg-surface p-4">
+    <div className={defaultExpanded ? '' : 'rounded-card border border-default bg-surface p-4'}>
       <div className="flex items-center gap-3">
-        <div className="w-9 h-9 rounded-lg bg-inset flex items-center justify-center flex-shrink-0">
-          {isQrLogin ? <QrCode size={16} className="text-content-secondary" /> : <Plug size={16} className="text-content-secondary" />}
-        </div>
+        <ChannelIcon name={channel.name} size={40} />
         <div className="flex-1 min-w-0">
           <div className="flex items-center gap-2">
             <span className="font-medium text-sm text-content">{localizedLabel(channel.label)}</span>
             <span className={`w-2 h-2 rounded-full ${channel.active ? 'bg-accent' : 'bg-content-tertiary'}`} />
+            {channel.active && <span className="text-xs text-accent">{t('channels_connected')}</span>}
           </div>
           <p className="text-xs text-content-tertiary font-mono mt-0.5">{channel.name}</p>
         </div>
@@ -169,7 +350,7 @@ const ChannelCard: React.FC<{ channel: ChannelInfo; onChanged: () => void }> = (
           <Btn variant="primary" onClick={() => setShowQr(true)}>
             {qrProvider === 'weixin' ? t('channels_scan_login') : t('channels_scan_register')}
           </Btn>
-        ) : isQrLogin ? null : (
+        ) : isQrLogin || defaultExpanded ? null : (
           <Btn variant="ghost" onClick={() => setExpanded((v) => !v)}>
             {t('channels_add')}
           </Btn>