fix(frontend): 流式消息逐字显示动画 + 侧边栏会话切换修复

frontend/web/src/store/chatStore.ts

@@ -1,21 +1,40 @@
 import { create } from 'zustand';
 import type { Message } from '@/types/chat';
+import type { IoTDevice, BackgroundThinkingStatus } from '@/types/chat';
 
 interface ChatStore {
   messages: Message[];
   isTyping: boolean;
 
+  // 连续对话模式
+  continuousMode: boolean;
+
+  // 后台思考状态
+  backgroundThinkingStatus: BackgroundThinkingStatus;
+
+  // IoT 设备状态
+  iotDevices: IoTDevice[];
+  iotDevicesLastUpdated: number | null;
+
   addMessage: (message: Message) => void;
   appendToLastMessage: (content: string) => void;
   finishStreaming: () => void;
   setMessages: (messages: Message[]) => void;
   setTyping: (typing: boolean) => void;
   clearMessages: () => void;
+
+  setContinuousMode: (enabled: boolean) => void;
+  setBackgroundThinkingStatus: (status: BackgroundThinkingStatus) => void;
+  setIoTDevices: (devices: IoTDevice[]) => void;
 }
 
 export const useChatStore = create<ChatStore>((set) => ({
   messages: [],
   isTyping: false,
+  continuousMode: true,
+  backgroundThinkingStatus: 'idle',
+  iotDevices: [],
+  iotDevicesLastUpdated: null,
 
   addMessage: (message) =>
     set((state) => ({
@@ -54,9 +73,16 @@ export const useChatStore = create<ChatStore>((set) => ({
       return { messages: msgs, isTyping: false };
     }),
 
-  setMessages: (messages) => set({ messages }),
+  setMessages: (messages) => set({ messages, isTyping: false }),
 
   setTyping: (typing) => set({ isTyping: typing }),
 
   clearMessages: () => set({ messages: [], isTyping: false }),
+
+  setContinuousMode: (enabled) => set({ continuousMode: enabled }),
+
+  setBackgroundThinkingStatus: (status) => set({ backgroundThinkingStatus: status }),
+
+  setIoTDevices: (devices) =>
+    set({ iotDevices: devices, iotDevicesLastUpdated: Date.now() }),
 }));