fix(test): 统一test_lipsync_tts持久化测试upload_url参数与key一致，消除flaky

tests/unit/test_lipsync_tts.py

@@ -448,7 +448,7 @@ class TestPersistOutputVideoTask:
 
         job = self._make_persist_job(output_video_url="https://temp.mk/x.mp4")
         session, fake_client, storage, patches = self._persist_patches(
-            job=job, video_bytes=b"VIDEODATA", upload_url="https://oss.example.com/lipsync-outputs/u1/j1.mp4"
+            job=job, video_bytes=b"VIDEODATA", upload_url="https://oss.example.com/lipsync-outputs/user-1/job-1.mp4"
         )
         entered = [p.__enter__() for p in patches]
         try:
@@ -459,17 +459,11 @@ class TestPersistOutputVideoTask:
 
         fake_client.get.assert_called_once_with("https://temp.mk/x.mp4")
         storage.upload_file.assert_called_once()
-        # 上传的 key 必须是 lipsync-outputs/{user_id}/{job_id}.mp4
-        key_arg = (
-            storage.upload_file.call_args.args[1]
-            if storage.upload_file.call_args.args
-            else storage.upload_file.call_args.kwargs.get("key")
-        )
-        # upload_file(data, key, content_type=...)
         call_args = storage.upload_file.call_args.args
+        # 上传的 key 必须是 lipsync-outputs/{user_id}/{job_id}.mp4
         assert call_args[1] == "lipsync-outputs/user-1/job-1.mp4"
-        # output_video_url 被替换为签名后的永久 URL
-        assert job.output_video_url == "https://oss.example.com/lipsync-outputs/u1/j1.mp4?signed"
+        # upload_file 返回永久 URL，再被 _sign_media_url 追加 ?signed
+        assert job.output_video_url == "https://oss.example.com/lipsync-outputs/user-1/job-1.mp4?signed"
         assert job.updated_at is not None
         session.commit.assert_called_once()
         session.close.assert_called_once()