wyxd与聊天页面的切换，

pages/Chat/Chat.vue

@@ -64,6 +64,15 @@
 				</view>
 
 			</view>
+
+			<!-- WYXD 文件入口（从工作区 AI 修改进入时显示） -->
+			<view v-if="hasWyxdFile" class="wyxd-banner">
+				<view class="wyxd-banner-icon iconfont icon-wenjian"></view>
+				<view class="wyxd-banner-text" @click="goWyxdViewer">查看: {{ wyxdFileName }}</view>
+				<view class="wyxd-banner-arrow" @click="goWyxdViewer">&rsaquo;</view>
+				<view class="wyxd-banner-close" @click.stop="hasWyxdFile = false">&times;</view>
+			</view>
+
 			<view class="main-chat">
 				<scroll-view class="chat-messages" direction="vertical" scroll-y :scroll-into-view="scrollToView"
 					:upper-threshold="0" :scroll-with-animation="!isThinking" @scroll="onScroll">
@@ -293,6 +302,7 @@
 		watch
 	} from 'vue';
 	import {
+		onLoad,
 		onShow,
 		onUnload
 	} from '@dcloudio/uni-app';
@@ -356,6 +366,13 @@
 	// 聊天类型（ai，好友，群聊）
 	const ChatType = ref(0)
 
+	// WYXD 关联数据（从 WorkSpace 的「AI修改」进入时携带）
+	const wyxdWorkspaceId = ref('')
+	const wyxdFilePath = ref('')
+	const wyxdFileName = ref('')
+	const wyxdUserToken = ref('')
+	const hasWyxdFile = ref(false)
+
 
 	// marked.setOptions({
 	// 	breaks: true, // 自动把换行符转成 <br> 换行
@@ -621,6 +638,17 @@
 		})
 	}
 
+	// 跳转到 WYXD 查看器（强制重新下载，不走缓存）
+	const goWyxdViewer = () => {
+		uni.navigateTo({
+			url: '/pages/WYXD/WYXD?workspaceId=' + encodeURIComponent(wyxdWorkspaceId.value)
+				+ '&filePath=' + encodeURIComponent(wyxdFilePath.value)
+				+ '&fileName=' + encodeURIComponent(wyxdFileName.value)
+				+ '&userToken=' + encodeURIComponent(wyxdUserToken.value)
+				+ '&forceDownload=1'
+		})
+	}
+
 	// 跳转到云端数据库
 	const goCloudDatabase = () => {
 		// 保存当前会话id，确保从工作区返回时能恢复
@@ -1480,6 +1508,7 @@
 			if (oldId && oldId !== newId) {
 				isLoadingMessages.value = true
 				allmessages.value = []
+				hasWyxdFile.value = false
 			}
 			switch (ChatType.value) {
 				case 0:
@@ -1503,6 +1532,17 @@
 		immediate: true
 	})
 
+	// 接收 WYXD 参数（从工作区「AI修改」进入时由 navigateTo 传入）
+	onLoad((options) => {
+		if (options.wyxdFilePath) {
+			wyxdWorkspaceId.value = options.wyxdWorkspaceId ? decodeURIComponent(options.wyxdWorkspaceId) : ''
+			wyxdFilePath.value = decodeURIComponent(options.wyxdFilePath)
+			wyxdFileName.value = options.wyxdFileName ? decodeURIComponent(options.wyxdFileName) : '未命名文档'
+			wyxdUserToken.value = options.wyxdUserToken ? decodeURIComponent(options.wyxdUserToken) : ''
+			hasWyxdFile.value = true
+		}
+	})
+
 	onMounted(() => {
 		// currentSessionId.value = getCurrentSessionId()
 	})