fix(teacher): 隔离子智能体流式消息与老师正文

electron/coding-teacher/cloud-runner.ts

@@ -308,6 +308,7 @@ export function prepareCloudTeacher(
               typeof detail === 'string' ? detail : '老师回复已停止。'
             );
           }
+          const threadId = identifier(view.thread_id);
           onProgress('老师正在思考…');
           try {
             await transport.events(
@@ -318,6 +319,8 @@ export function prepareCloudTeacher(
               bounded,
               (_event, envelope, id) => {
                 if (id) cursor = id;
+                // Yuxi 的父 Run 也包含子线程事件，老师正文只接收云端主线程文本。
+                if (envelope.thread_id !== threadId) return;
                 const payload = envelope.payload ? object(envelope.payload) : {};
                 for (const item of Array.isArray(payload.items)
                   ? payload.items