fix(ui): 管家 Tab 统计栏显示管家专属摘要，不再显示聊天统计

desktop/src/components/RightPanel.tsx

@@ -398,7 +398,18 @@ export function RightPanel({ simpleMode = false }: RightPanelProps) {
         )}
       </div>
 
-      {/* 消息统计 */}
+      {/* 消息统计 — butler tab 时显示管家专用摘要 */}
+      {activeTab === 'butler' ? (
+        <div className="px-4 py-2 border-b border-gray-100 dark:border-gray-800 flex items-center justify-between text-xs">
+          <div className="flex items-center gap-2 text-gray-500 dark:text-gray-400">
+            <span className="font-medium">管家模式</span>
+          </div>
+          <div className={`flex items-center gap-1 ${connected ? 'text-emerald-500' : 'text-gray-400'}`}>
+            {connected ? <Wifi className="w-3.5 h-3.5" /> : <WifiOff className="w-3.5 h-3.5" />}
+            <span>{runtimeSummary}</span>
+          </div>
+        </div>
+      ) : (
         <div className="px-4 py-2 border-b border-gray-100 dark:border-gray-800 flex items-center justify-between text-xs">
           <div className="flex items-center gap-2 text-gray-500 dark:text-gray-400">
             <BarChart3 className="w-3.5 h-3.5" />
@@ -411,6 +422,7 @@ export function RightPanel({ simpleMode = false }: RightPanelProps) {
             <span>{runtimeSummary}</span>
           </div>
         </div>
+      )}
 
       <div className="flex-1 overflow-y-auto custom-scrollbar p-4 space-y-4">
         {activeTab === 'memory' ? (