增加给嵌入父窗口发送外链聊天开始消息，改善父窗口对聊天过程的协同响应能力 (#1252)

Signed-off-by: Ben Gao <bengao168@msn.com>

projects/app/src/pages/chat/share.tsx

@@ -84,6 +84,17 @@ const OutLink = ({
       const prompts = messages.slice(-2);
       const completionChatId = chatId ? chatId : nanoid();
 
+      //post message to report chat start
+      window.top?.postMessage(
+        {
+          type: 'shareChatStart',
+          data: {
+            question: prompts[0]?.content
+          }
+        },
+        '*'
+      );
+
       const { responseText, responseData } = await streamFetch({
         data: {
           messages: prompts,