feat(desktop): simple mode UI — ChatArea compact + SimpleSidebar + RightPanel dual-mode

Adapt ChatArea for compact/butler mode:
- Add onOpenDetail prop for expanding to full view
- Remove inline export dialog (moved to detail view)
- Replace SquarePen with ClipboardList icon

Add SimpleSidebar component for butler simple mode:
- Two tabs: 对话 / 行业资讯
- Quick suggestion buttons
- Minimal navigation

RightPanel refactoring for dual-mode support:
- Detect simple vs professional mode
- Conditional rendering based on butler mode state

desktop/src/components/ChatArea.tsx

@@ -10,7 +10,7 @@ import { useConfigStore } from '../store/configStore';
 import { useSaaSStore } from '../store/saasStore';
 import { type UnlistenFn } from '@tauri-apps/api/event';
 import { safeListenEvent } from '../lib/safe-tauri';
-import { Paperclip, SquarePen, ArrowUp, MessageSquare, Download, X, FileText, Image as ImageIcon, Search } from 'lucide-react';
+import { Paperclip, ArrowUp, MessageSquare, Download, X, FileText, Image as ImageIcon, Search, ClipboardList } from 'lucide-react';
 import { Button, EmptyState, MessageListSkeleton, LoadingDots } from './ui';
 import { ResizableChatLayout } from './ai/ResizableChatLayout';
 import { ArtifactPanel } from './ai/ArtifactPanel';
@@ -49,11 +49,11 @@ const DEFAULT_MESSAGE_HEIGHTS: Record<string, number> = {
 // Threshold for enabling virtualization (messages count)
 const VIRTUALIZATION_THRESHOLD = 100;
 
-export function ChatArea({ compact }: { compact?: boolean }) {
+export function ChatArea({ compact, onOpenDetail }: { compact?: boolean; onOpenDetail?: () => void }) {
   const {
     messages, isStreaming, isLoading,
     sendMessage: sendToGateway, initStreamListener,
-    newConversation, chatMode, setChatMode, suggestions,
+    chatMode, setChatMode, suggestions,
     totalInputTokens, totalOutputTokens,
   } = useChatStore();
   const currentAgent = useConversationStore((s) => s.currentAgent);
@@ -239,23 +239,6 @@ export function ChatArea({ compact }: { compact?: boolean }) {
 
   const connected = connectionState === 'connected';
 
-  // Export current conversation as Markdown
-  const exportCurrentConversation = () => {
-    const title = currentAgent?.name || 'ZCLAW 对话';
-    const lines = [`# ${title}`, '', `导出时间: ${new Date().toLocaleString('zh-CN')}`, ''];
-    for (const msg of messages) {
-      const label = msg.role === 'user' ? '用户' : msg.role === 'assistant' ? '助手' : msg.role;
-      lines.push(`## ${label}`, '', msg.content, '');
-    }
-    const blob = new Blob([lines.join('\n')], { type: 'text/markdown;charset=utf-8' });
-    const url = URL.createObjectURL(blob);
-    const a = document.createElement('a');
-    a.href = url;
-    a.download = `${title.replace(/[/\\?%*:|"<>]/g, '_')}.md`;
-    a.click();
-    URL.revokeObjectURL(url);
-  };
-
   // Build artifact panel content
   const artifactRightPanel = (
     <ArtifactPanel
@@ -364,28 +347,16 @@ export function ChatArea({ compact }: { compact?: boolean }) {
               <Search className="w-3.5 h-3.5" />
             </Button>
           )}
-          {messages.length > 0 && (
+          {/* 详情按钮 (简洁模式) */}
+          {compact && onOpenDetail && (
             <Button
               variant="ghost"
               size="sm"
-              onClick={exportCurrentConversation}
-              className="flex items-center gap-2 text-gray-600 dark:text-gray-400 hover:bg-gray-50 dark:hover:bg-gray-800 rounded-lg transition-colors"
-              title="导出对话"
+              onClick={onOpenDetail}
+              className="flex items-center gap-1 text-gray-600 dark:text-gray-400 hover:bg-gray-50 dark:hover:bg-gray-800 rounded-lg transition-colors"
+              title="详情"
             >
-              <Download className="w-3.5 h-3.5" />
-              <span className="text-sm">导出</span>
-            </Button>
-          )}
-          {messages.length > 0 && (
-            <Button
-              variant="ghost"
-              size="sm"
-              onClick={newConversation}
-              className="flex items-center gap-2 text-gray-600 dark:text-gray-400 hover:bg-gray-50 dark:hover:bg-gray-800 rounded-lg transition-colors"
-              title="新对话"
-            >
-              <SquarePen className="w-3.5 h-3.5" />
-              新对话
+              <ClipboardList className="w-3.5 h-3.5" />
             </Button>
           )}
         </div>

desktop/src/components/RightPanel.tsx

@@ -85,7 +85,11 @@ import { Button, Badge } from './ui';
 import { getPersonalityById } from '../lib/personality-presets';
 import { silentErrorHandler } from '../lib/error-utils';
 
-export function RightPanel() {
+interface RightPanelProps {
+  simpleMode?: boolean;
+}
+
+export function RightPanel({ simpleMode = false }: RightPanelProps) {
   // Connection store
   const connectionState = useConnectionStore((s) => s.connectionState);
   const gatewayVersion = useConnectionStore((s) => s.gatewayVersion);
@@ -271,60 +275,85 @@ export function RightPanel() {
     <aside className="w-full bg-white dark:bg-gray-900 flex flex-col">
       {/* 顶部工具栏 - Tab 栏 */}
       <div className="border-b border-gray-200 dark:border-gray-700 flex-shrink-0">
-        {/* 主 Tab 行 */}
-        <div className="flex items-center px-2 pt-2 gap-1">
-          <TabButton
-            active={activeTab === 'status'}
-            onClick={() => setActiveTab('status')}
-            icon={<Activity className="w-4 h-4" />}
-            label="状态"
-          />
-          <TabButton
-            active={activeTab === 'agent'}
-            onClick={() => setActiveTab('agent')}
-            icon={<User className="w-4 h-4" />}
-            label="Agent"
-          />
-          <TabButton
-            active={activeTab === 'files'}
-            onClick={() => setActiveTab('files')}
-            icon={<FileText className="w-4 h-4" />}
-            label="文件"
-          />
-          <TabButton
-            active={activeTab === 'memory'}
-            onClick={() => setActiveTab('memory')}
-            icon={<Brain className="w-4 h-4" />}
-            label="记忆"
-          />
-        </div>
-        {/* 第二行 Tab */}
-        <div className="flex items-center px-2 pb-2 gap-1">
-          <TabButton
-            active={activeTab === 'reflection'}
-            onClick={() => setActiveTab('reflection')}
-            icon={<Sparkles className="w-4 h-4" />}
-            label="反思"
-          />
-          <TabButton
-            active={activeTab === 'autonomy'}
-            onClick={() => setActiveTab('autonomy')}
-            icon={<Shield className="w-4 h-4" />}
-            label="自主"
-          />
-          <TabButton
-            active={activeTab === 'evolution'}
-            onClick={() => setActiveTab('evolution')}
-            icon={<Dna className="w-4 h-4" />}
-            label="演化"
-          />
-          <TabButton
-            active={activeTab === 'butler'}
-            onClick={() => setActiveTab('butler')}
-            icon={<ConciergeBell className="w-4 h-4" />}
-            label="管家"
-          />
-        </div>
+        {simpleMode ? (
+          /* 简洁模式: 仅 状态 / Agent / 管家 */
+          <div className="flex items-center px-2 py-2 gap-1">
+            <TabButton
+              active={activeTab === 'status'}
+              onClick={() => setActiveTab('status')}
+              icon={<Activity className="w-4 h-4" />}
+              label="状态"
+            />
+            <TabButton
+              active={activeTab === 'agent'}
+              onClick={() => setActiveTab('agent')}
+              icon={<User className="w-4 h-4" />}
+              label="Agent"
+            />
+            <TabButton
+              active={activeTab === 'butler'}
+              onClick={() => setActiveTab('butler')}
+              icon={<ConciergeBell className="w-4 h-4" />}
+              label="管家"
+            />
+          </div>
+        ) : (
+          <>
+            {/* 专业模式: 全部 8 个 Tab */}
+            <div className="flex items-center px-2 pt-2 gap-1">
+              <TabButton
+                active={activeTab === 'status'}
+                onClick={() => setActiveTab('status')}
+                icon={<Activity className="w-4 h-4" />}
+                label="状态"
+              />
+              <TabButton
+                active={activeTab === 'agent'}
+                onClick={() => setActiveTab('agent')}
+                icon={<User className="w-4 h-4" />}
+                label="Agent"
+              />
+              <TabButton
+                active={activeTab === 'files'}
+                onClick={() => setActiveTab('files')}
+                icon={<FileText className="w-4 h-4" />}
+                label="文件"
+              />
+              <TabButton
+                active={activeTab === 'memory'}
+                onClick={() => setActiveTab('memory')}
+                icon={<Brain className="w-4 h-4" />}
+                label="记忆"
+              />
+            </div>
+            <div className="flex items-center px-2 pb-2 gap-1">
+              <TabButton
+                active={activeTab === 'reflection'}
+                onClick={() => setActiveTab('reflection')}
+                icon={<Sparkles className="w-4 h-4" />}
+                label="反思"
+              />
+              <TabButton
+                active={activeTab === 'autonomy'}
+                onClick={() => setActiveTab('autonomy')}
+                icon={<Shield className="w-4 h-4" />}
+                label="自主"
+              />
+              <TabButton
+                active={activeTab === 'evolution'}
+                onClick={() => setActiveTab('evolution')}
+                icon={<Dna className="w-4 h-4" />}
+                label="演化"
+              />
+              <TabButton
+                active={activeTab === 'butler'}
+                onClick={() => setActiveTab('butler')}
+                icon={<ConciergeBell className="w-4 h-4" />}
+                label="管家"
+              />
+            </div>
+          </>
+        )}
       </div>
 
       {/* 消息统计 */}

desktop/src/components/SimpleSidebar.tsx

@@ -0,0 +1,120 @@
+/**
+ * SimpleSidebar - Trae Solo 风格的简洁侧边栏
+ *
+ * 仅显示：对话列表 + 行业资讯
+ * 底部：模式切换 + 设置
+ */
+
+import { useState } from 'react';
+import {
+  MessageSquare, Settings, LayoutGrid,
+  Search, X, Newspaper,
+} from 'lucide-react';
+import { ConversationList } from './ConversationList';
+
+interface SimpleSidebarProps {
+  onOpenSettings?: () => void;
+  onToggleMode?: () => void;
+}
+
+type Tab = 'conversations' | 'news';
+
+export function SimpleSidebar({ onOpenSettings, onToggleMode }: SimpleSidebarProps) {
+  const [activeTab, setActiveTab] = useState<Tab>('conversations');
+  const [searchQuery, setSearchQuery] = useState('');
+
+  return (
+    <aside className="w-64 sidebar-bg border-r border-[#e8e6e1] dark:border-gray-800 flex flex-col h-full shrink-0">
+      {/* Logo area */}
+      <div className="h-14 flex items-center px-4 border-b border-[#e8e6e1]/50 dark:border-gray-800">
+        <span className="text-lg font-semibold tracking-tight bg-gradient-to-r from-orange-500 to-amber-500 bg-clip-text text-transparent">
+          ZCLAW
+        </span>
+      </div>
+
+      {/* Tab 切换: 对话 / 行业资讯 */}
+      <div className="flex border-b border-[#e8e6e1]/50 dark:border-gray-800">
+        <button
+          onClick={() => setActiveTab('conversations')}
+          className={`flex-1 flex items-center justify-center gap-1.5 py-2.5 text-xs font-medium transition-colors ${
+            activeTab === 'conversations'
+              ? 'text-gray-900 dark:text-gray-100 border-b-2 border-orange-500'
+              : 'text-gray-500 dark:text-gray-400 hover:text-gray-700 dark:hover:text-gray-300'
+          }`}
+        >
+          <MessageSquare className="w-3.5 h-3.5" />
+          对话
+        </button>
+        <button
+          onClick={() => setActiveTab('news')}
+          className={`flex-1 flex items-center justify-center gap-1.5 py-2.5 text-xs font-medium transition-colors ${
+            activeTab === 'news'
+              ? 'text-gray-900 dark:text-gray-100 border-b-2 border-orange-500'
+              : 'text-gray-500 dark:text-gray-400 hover:text-gray-700 dark:hover:text-gray-300'
+          }`}
+        >
+          <Newspaper className="w-3.5 h-3.5" />
+          行业资讯
+        </button>
+      </div>
+
+      {/* 内容区域 */}
+      <div className="flex-1 overflow-hidden">
+        {activeTab === 'conversations' && (
+          <div className="p-2 h-full overflow-y-auto">
+            {/* 搜索框 */}
+            <div className="relative mb-2">
+              <Search className="absolute left-3 top-1/2 -translate-y-1/2 text-gray-400 w-4 h-4" />
+              <input
+                type="text"
+                placeholder="搜索对话..."
+                value={searchQuery}
+                onChange={(e) => setSearchQuery(e.target.value)}
+                className="w-full pl-9 pr-8 py-1.5 bg-white/60 dark:bg-gray-800 border border-[#e8e6e1] dark:border-gray-700 rounded-lg text-sm focus:outline-none focus:border-gray-400 transition-all text-gray-700 dark:text-gray-300 placeholder-gray-400"
+              />
+              {searchQuery && (
+                <button
+                  onClick={() => setSearchQuery('')}
+                  className="absolute right-2 top-1/2 -translate-y-1/2 p-1 hover:bg-gray-200 dark:hover:bg-gray-700 rounded text-gray-400"
+                >
+                  <X className="w-3 h-3" />
+                </button>
+              )}
+            </div>
+            <ConversationList searchQuery={searchQuery} />
+          </div>
+        )}
+
+        {activeTab === 'news' && (
+          <div className="p-3 h-full overflow-y-auto">
+            <div className="flex flex-col items-center justify-center py-12 text-gray-400 dark:text-gray-500">
+              <Newspaper className="w-10 h-10 mb-3 opacity-50" />
+              <p className="text-sm">行业资讯</p>
+              <p className="text-xs mt-1">开发中，敬请期待</p>
+            </div>
+          </div>
+        )}
+      </div>
+
+      {/* 底部操作栏 */}
+      <div className="p-2 border-t border-[#e8e6e1] dark:border-gray-700 space-y-1">
+        <button
+          onClick={onToggleMode}
+          className="w-full flex items-center gap-3 px-3 py-2 rounded-lg text-sm text-gray-600 dark:text-gray-400 hover:bg-black/5 dark:hover:bg-white/5 transition-colors"
+        >
+          <LayoutGrid className="w-4 h-4" />
+          <span>专业模式</span>
+        </button>
+        <button
+          onClick={onOpenSettings}
+          aria-label="打开设置"
+          title="设置和更多"
+          className="w-full flex items-center gap-3 px-3 py-2 rounded-lg text-sm text-gray-600 dark:text-gray-400 hover:bg-black/5 dark:hover:bg-white/5 transition-colors"
+        >
+          <Settings className="w-4 h-4" />
+          <span>设置</span>
+        </button>
+      </div>
+    </aside>
+  );
+}