fix(web): sync activity-receipt contract with live model replies

The staging quality gate scanned the old settled.spoken streaming state after the live path started rendering answer.delta as raw.

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/BUG_HISTORY.md

@@ -5531,6 +5531,22 @@
 - 复发自：无
 - 修复版本：未修复
 
+## BUG-378 | staging 质量门 2021/2022：activity 合同仍要求 settled.spoken
+
+- 状态：resolved
+- 首次发现：2026-08-25
+- 最近更新：2026-08-25
+- 影响面：Gitea `backend-quality-gate.yml` validate `npm test --prefix frontend`、`rectification-activity-receipt.test.ts`、staging 发布
+- 用户现象：向 `staging` 推送 `2e8c748b` 后 quality gate run `2069` 失败。`validate` job `5163` 前端 2021 通过、1 失败。`publish` job `5164` 因 `needs: validate` 1 秒跳过。
+- 触发条件：完整 `xiaoxin` runner 跑前端全量测试。
+- 根因：BUG-377 把直播 `answer.delta` 改成原样显示 `raw`，聚焦套件未覆盖 `rectification-activity-receipt.test.ts`。该合同仍扫描 `state: settled.spoken ? "streaming" : "thinking"`。
+- 修复：合同改为锁定 `state: raw.trim() ? "streaming" : "thinking"` 和 `text: raw`，并禁止再出现 `settled.spoken`。流式时仍保留 `正在组织回答…`，不得把 `activeActivity` 清掉。
+- 验证：`frontend/tests/rectification-activity-receipt.test.ts`。
+- 防复发：改生时纠正直播 `answer.delta` 渲染时必须跑 `rectification-activity-receipt`，不能只跑 stream/entry 聚焦套件。
+- 相关记录：BUG-369、BUG-370、BUG-377
+- 复发自：BUG-377（直播回复改成模型正文后，activity 源码合同未同步）
+- 修复版本：待发布
+
 ## BUG-377 | 生时纠正直播回复必须是模型正文，不得用正则或 Case 模板顶替
 
 - 状态：resolved

frontend/tests/rectification-activity-receipt.test.ts

@@ -99,7 +99,9 @@ test("answer deltas preserve a still-running server activity", () => {
     chatSource.indexOf('event.type === "answer.delta"'),
     chatSource.indexOf('event.type === "run.failed"'),
   );
-  assert.match(deltaBranch, /state: settled\.spoken \? "streaming" : "thinking"/);
+  assert.match(deltaBranch, /state: raw\.trim\(\) \? "streaming" : "thinking"/);
+  assert.match(deltaBranch, /text: raw,/);
+  assert.doesNotMatch(deltaBranch, /settled\.spoken/);
   assert.match(deltaBranch, /正在组织回答/);
   assert.doesNotMatch(deltaBranch, /activeActivity:\s*undefined/);
 });