feat(weChat): 添加清空当前联系人的功能

在weChat模块中添加clearCurrentContact方法用于清空当前联系人和消息，并在ckchat模块中调用该方法确保删除会话时同步清空联系人

Cunkebao/src/store/module/ckchat/ckchat.ts

@@ -9,7 +9,10 @@ import {
 } from "@/pages/pc/ckbox/data";
 import { weChatGroupService, contractService } from "@/utils/db";
 import { createContractList } from "@/store/module/ckchat/api";
-
+import { useWeChatStore } from "@/store/module/weChat/weChat";
+// 从weChat store获取clearCurrentContact方法
+const getClearCurrentContact = () =>
+  useWeChatStore.getState().clearCurrentContact;
 export const useCkChatStore = createPersistStore<CkChatState>(
   set => ({
     userInfo: null,
@@ -393,6 +396,8 @@ export const useCkChatStore = createPersistStore<CkChatState>(
       set(state => ({
         chatSessions: state.chatSessions.filter(item => item.id !== sessionId),
       }));
+      //当前选中的客户清空
+      getClearCurrentContact();
     },
     // 设置用户信息
     setUserInfo: (userInfo: CkUserInfo) => {

Cunkebao/src/store/module/weChat/weChat.data.ts

@@ -6,7 +6,8 @@ export interface WeChatState {
 
   // 当前聊天用户的消息列表（只存储当前聊天用户的消息）
   currentMessages: ChatRecord[];
-
+  // 清空当前联系人
+  clearCurrentContact: () => void;
   // 消息加载状态
   messagesLoading: boolean;
   isLoadingData: boolean;

Cunkebao/src/store/module/weChat/weChat.ts

@@ -24,7 +24,10 @@ export const useWeChatStore = create<WeChatState>()(
       messagesLoading: false,
       isLoadingData: false,
       currentGroupMembers: [],
-
+      //清空当前联系人
+      clearCurrentContact: () => {
+        set({ currentContract: null, currentMessages: [] });
+      },
       // Actions
       setCurrentContact: (
         contract: ContractData | weChatGroup,