修改deepmate删除功能

pages/deepMate/deepMate.vue

@@ -237,7 +237,7 @@
           <view class="delete-all-container">
             <image
               class="delete-icon"
-              src="/static/icons/Group_48095481.svg"
+              src="/static/icons/Group_48095481.svg" @click="clearAllHistory"
             ></image>
             <text class="delete-all" @click="clearAllHistory">删除全部</text>
           </view>
@@ -571,8 +571,21 @@ const groupedHistory = computed(() => {
 });
 
 const clearAllHistory = () => {
-  searchHistory.value = [];
-  // uni.setStorageSync("search_history", []);
+  uni.showModal({
+    title: '确认删除',
+    content: '确定要删除全部历史记录吗？该操作不可撤销。',
+    confirmText: '删除',
+    cancelText: '取消',
+    success: (res) => {
+      if (res.confirm) {
+        // 当前历史面板依赖 historyList，而非 searchHistory
+        historyList.value = [];
+        // 同步清空本地旧缓存（如果曾使用）
+        // uni.setStorageSync("search_history", []);
+        uni.showToast({ title: '历史已清空', icon: 'none' });
+      }
+    }
+  })
 };
 
 // 发送消息