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/Settings/ModelsAPI.tsx

@@ -3,7 +3,7 @@ import { invoke } from '@tauri-apps/api/core';
 import { getStoredGatewayToken, getStoredGatewayUrl } from '../../lib/gateway-client';
 import { useConnectionStore } from '../../store/connectionStore';
 import { useConfigStore } from '../../store/configStore';
-import { useChatStore } from '../../store/chatStore';
+import { useConversationStore } from '../../store/chat/conversationStore';
 import { silentErrorHandler } from '../../lib/error-utils';
 import { secureStorage } from '../../lib/secure-storage';
 import { Plus, Pencil, Trash2, Star, Eye, EyeOff, AlertCircle, X, Zap, Check } from 'lucide-react';
@@ -166,7 +166,8 @@ export function ModelsAPI() {
   const disconnect = useConnectionStore((s) => s.disconnect);
   const quickConfig = useConfigStore((s) => s.quickConfig);
   const loadModels = useConfigStore((s) => s.loadModels);
-  const { currentModel, setCurrentModel } = useChatStore();
+  const currentModel = useConversationStore((s) => s.currentModel);
+  const setCurrentModel = useConversationStore((s) => s.setCurrentModel);
   const [gatewayUrl, setGatewayUrl] = useState(getStoredGatewayUrl());
   const [gatewayToken, setGatewayToken] = useState(quickConfig.gatewayToken || getStoredGatewayToken());