fix(desktop): component cleanup + dead code removal + DeerFlow ai-elements

- ChatArea: DeerFlow ai-elements annotations for accessibility
- Conversation: remove unused Context, simplify message rendering
- Delete dead modules: audit-logger.ts, gateway-reconnect.ts
- Replace console.log with structured logger across components
- Add idb dependency for IndexedDB persistence
- Fix kernel-skills type safety improvements

desktop/src/components/ChatArea.tsx

@@ -1,11 +1,13 @@
 import { useState, useEffect, useRef, useCallback, useMemo, type MutableRefObject, type RefObject, type CSSProperties } from 'react';
 import { motion, AnimatePresence } from 'framer-motion';
 import { List, type ListImperativeAPI } from 'react-window';
-import { useChatStore, Message } from '../store/chatStore';
+import { useChatStore, type Message } from '../store/chatStore';
+import { useConversationStore } from '../store/chat/conversationStore';
 import { useArtifactStore } from '../store/chat/artifactStore';
 import { useConnectionStore } from '../store/connectionStore';
 import { useAgentStore } from '../store/agentStore';
 import { useConfigStore } from '../store/configStore';
+import { listen, type UnlistenFn } from '@tauri-apps/api/event';
 import { Paperclip, SquarePen, ArrowUp, MessageSquare, Download, X, FileText, Image as ImageIcon } from 'lucide-react';
 import { Button, EmptyState, MessageListSkeleton, LoadingDots } from './ui';
 import { ResizableChatLayout } from './ai/ResizableChatLayout';
@@ -45,11 +47,14 @@ const VIRTUALIZATION_THRESHOLD = 100;
 
 export function ChatArea() {
   const {
-    messages, currentAgent, isStreaming, isLoading, currentModel,
-    sendMessage: sendToGateway, setCurrentModel, initStreamListener,
+    messages, isStreaming, isLoading,
+    sendMessage: sendToGateway, initStreamListener,
     newConversation, chatMode, setChatMode, suggestions,
     totalInputTokens, totalOutputTokens,
   } = useChatStore();
+  const currentAgent = useConversationStore((s) => s.currentAgent);
+  const currentModel = useConversationStore((s) => s.currentModel);
+  const setCurrentModel = useConversationStore((s) => s.setCurrentModel);
   const {
     artifacts, selectedArtifactId, artifactPanelOpen,
     selectArtifact, setArtifactPanelOpen,
@@ -152,6 +157,29 @@ export function ChatArea() {
     return unsub;
   }, []);
 
+  // Listen for hand-execution-complete Tauri events
+  useEffect(() => {
+    let unlisten: UnlistenFn | undefined;
+    listen<{ approvalId: string; handId: string; success: boolean; error?: string | null }>(
+      'hand-execution-complete',
+      (event) => {
+        const { handId, success, error } = event.payload;
+        useChatStore.getState().addMessage({
+          id: crypto.randomUUID(),
+          role: 'hand',
+          content: success
+            ? `Hand ${handId} 执行完成`
+            : `Hand ${handId} 执行失败: ${error || '未知错误'}`,
+          timestamp: new Date(),
+          handName: handId,
+          handStatus: success ? 'completed' : 'failed',
+          handResult: event.payload,
+        });
+      },
+    ).then((fn) => { unlisten = fn; });
+    return () => { unlisten?.(); };
+  }, []);
+
   // Auto-scroll to bottom on new messages
   useEffect(() => {
     if (scrollRef.current && !useVirtualization) {