fix(test): 更新ingest编码校验测试以匹配放宽后的行为

- HEVC/H265/VP9/AV1等常见编码从'无效'改为'有效'
- 新增未知编码(mpeg4)也放行的测试
- 大小写不敏感测试断言从False改为True

tests/unit/test_ingest_validation.py

@@ -99,45 +99,55 @@ class TestIsValidMedia:
         result = _is_valid_media({"size_bytes": 1000}, "text")
         assert result is False
 
-    def test_video_hevc_codec_invalid(self):
-        """HEVC/H.265 编码视频 → 无效（渲染不支持）."""
+    def test_video_hevc_codec_valid(self):
+        """HEVC/H.265 编码视频 → 有效（ingest层不拦截，渲染层统一转码）."""
         from worker_app.tasks.ingest import _is_valid_media
 
         result = _is_valid_media(
             {"size_bytes": 10 * 1024 * 1024, "duration": 30.0, "codec": "hevc"},
             "video",
         )
-        assert result is False
+        assert result is True
 
-    def test_video_h265_codec_invalid(self):
-        """h265 编码 → 无效."""
+    def test_video_h265_codec_valid(self):
+        """h265 编码 → 有效."""
         from worker_app.tasks.ingest import _is_valid_media
 
         result = _is_valid_media(
             {"size_bytes": 10 * 1024 * 1024, "duration": 30.0, "codec": "h265"},
             "video",
         )
-        assert result is False
+        assert result is True
 
-    def test_video_vp9_codec_invalid(self):
-        """VP9 编码 → 无效."""
+    def test_video_vp9_codec_valid(self):
+        """VP9 编码 → 有效."""
         from worker_app.tasks.ingest import _is_valid_media
 
         result = _is_valid_media(
             {"size_bytes": 10 * 1024 * 1024, "duration": 30.0, "codec": "vp9"},
             "video",
         )
-        assert result is False
+        assert result is True
 
-    def test_video_av1_codec_invalid(self):
-        """AV1 编码 → 无效."""
+    def test_video_av1_codec_valid(self):
+        """AV1 编码 → 有效."""
         from worker_app.tasks.ingest import _is_valid_media
 
         result = _is_valid_media(
             {"size_bytes": 10 * 1024 * 1024, "duration": 30.0, "codec": "av1"},
             "video",
         )
-        assert result is False
+        assert result is True
+
+    def test_video_unknown_codec_valid(self):
+        """非白名单编码 → 仍有效（只打日志不拦截，渲染层负责统一转码）."""
+        from worker_app.tasks.ingest import _is_valid_media
+
+        result = _is_valid_media(
+            {"size_bytes": 10 * 1024 * 1024, "duration": 30.0, "codec": "mpeg4"},
+            "video",
+        )
+        assert result is True
 
     def test_video_h264_codec_valid(self):
         """H.264 编码 → 有效."""
@@ -170,14 +180,14 @@ class TestIsValidMedia:
         assert result is True
 
     def test_video_codec_case_insensitive(self):
-        """编码格式校验不区分大小写."""
+        """编码格式校验不区分大小写，HEVC大写也识别为有效."""
         from worker_app.tasks.ingest import _is_valid_media
 
         result = _is_valid_media(
             {"size_bytes": 10 * 1024 * 1024, "duration": 30.0, "codec": "HEVC"},
             "video",
         )
-        assert result is False
+        assert result is True
 
 
 # ── extract_media_metadata 返回值签名测试 ────────────────────────────────────