fix(#1743): 批量变体独立选片——完整重跑单视频选片+批次20%重叠避让+查重超阈重渲+封面独立 (#1745)

Co-authored-by: xiaoxia <dev@xiaoxiajianji.com>
Co-committed-by: xiaoxia <dev@xiaoxiajianji.com>

tests/unit/test_dedup_two_phase_commit.py

@@ -85,7 +85,10 @@ class TestTwoPhaseCommit:
                 session=session,
             )
 
-        assert result == 1
+        # #1743：返回值由 int 改为 dict（含批次查重信息）
+        assert isinstance(result, dict)
+        assert result["video_count"] == 1
+        assert result["batch_similarity"] is None  # 非批次任务无批次相似度
         # create() should be called exactly once with the complete video object
         mock_repo.create.assert_called_once()
         created_video = mock_repo.create.call_args[0][0]
@@ -122,7 +125,10 @@ class TestTwoPhaseCommit:
                 session=session,
             )
 
-        assert result == 1
+        # #1743：返回值由 int 改为 dict（含批次查重信息）
+        assert isinstance(result, dict)
+        assert result["video_count"] == 1
+        assert result["batch_similarity"] is None  # 非批次任务无批次相似度
         mock_repo.create.assert_called_once()
         created_video = mock_repo.create.call_args[0][0]
         assert created_video.duplicate_rate is None
@@ -161,7 +167,10 @@ class TestTwoPhaseCommit:
                 session=session,
             )
 
-        assert result == 1
+        # #1743：返回值由 int 改为 dict（含批次查重信息）
+        assert isinstance(result, dict)
+        assert result["video_count"] == 1
+        assert result["batch_similarity"] is None  # 非批次任务无批次相似度
         mock_repo.create.assert_called_once()
         created_video = mock_repo.create.call_args[0][0]
         # Fingerprint should be set
@@ -229,6 +238,7 @@ class TestTwoPhaseCommit:
                 session=session,
             )
 
-        assert result == 0
+        # #1743：失败路径返回 dict（video_count=0）
+        assert result["video_count"] == 0
         session.commit.assert_not_called()
         session.rollback.assert_called_once()