feat(plugins): add source-aware evidence and recording timelines

tests/unit/admin_console/test_automation.py

@@ -583,7 +583,8 @@ async def test_fail_fast_includes_skipped_reports(isolated, monkeypatch):
     assert [j["status"] for j in isolated.jobs(batch["id"])] == ["failed", "skipped"]
     archive = reports.export_batch(batch["id"])
     with zipfile.ZipFile(archive) as z:
-        assert len(z.namelist()) == 6  # two summary files + two files per task
+        assert len(z.namelist()) == 8  # summaries + two reports and evidence index per task
+        assert len([name for name in z.namelist() if name.endswith("证据索引.json")]) == 2
         assert sum(n.endswith(".docx") for n in z.namelist()) == 3
 
 

tests/unit/admin_console/test_plugin_media.py

@@ -0,0 +1,82 @@
+import json
+from unittest.mock import MagicMock
+
+from apps.admin_console.routers import media
+from apps.admin_console.services import evidence_service as evidence
+from apps.admin_console.services import report_export as exports
+
+
+def fixture_files(tmp_path, monkeypatch):
+    monkeypatch.setattr(evidence, "TRACES_PATH", tmp_path)
+    root = tmp_path / "task" / "evidence" / "recordings"
+    root.mkdir(parents=True)
+    video = root / "clip.mp4"
+    video.write_bytes(b"fixture video")
+    (root / "recordings.json").write_text(
+        json.dumps(
+            {
+                "version": 1,
+                "sources": [
+                    {
+                        "id": "pc",
+                        "kind": "computer",
+                        "target_ids": ["window"],
+                        "status": "ready",
+                        "segments": [
+                            {
+                                "file": "evidence/recordings/clip.mp4",
+                                "offset_ms": 5000,
+                                "duration": 2,
+                            }
+                        ],
+                    }
+                ],
+            }
+        ),
+        "utf-8",
+    )
+    return video
+
+
+def test_plugin_media_preserves_session_offsets_and_exports_relative_files(tmp_path, monkeypatch):
+    fixture_files(tmp_path, monkeypatch)
+    monkeypatch.setattr(exports, "session_screenshots", lambda _: [])
+    monkeypatch.setattr(exports, "session_artifacts", lambda _: [])
+    source = evidence.plugin_sources("task")[0]
+    assert source["segments"][0]["start"] == 5
+    index = evidence.export_index(
+        "task", {"name": "case", "status": "completed", "verdict": "未验证"}, []
+    )
+    clip = index["recordings"][0]["segments"][0]
+    assert clip["file"] == "任务录屏/电脑/clip.mp4" and "url" not in clip
+    assert clip["file"] in {item["path"] for item in index["files"]}
+
+
+def test_legacy_url_only_does_not_enable_strict_timeline(monkeypatch):
+    monkeypatch.setattr(
+        media,
+        "_get_legacy_session_video_sync",
+        lambda _: {"status": "ready", "video_url": "/videos/old.mp4", "video_segments": []},
+    )
+    monkeypatch.setattr(evidence, "plugin_sources", lambda _: [])
+    monkeypatch.setattr(media, "session_repo", MagicMock(get_session_by_id=lambda _: {}))
+    response = media._get_session_video_sync("task")
+    assert response["session_timeline"] is False
+    assert response["video_url"] == "/videos/old.mp4"
+
+
+def test_computer_only_recording_can_be_downloaded(tmp_path, monkeypatch):
+    import zipfile
+
+    fixture_files(tmp_path, monkeypatch)
+    monkeypatch.setattr(exports, "EXPORT_ROOT", tmp_path / "exports")
+    monkeypatch.setattr(
+        exports,
+        "session_report",
+        lambda _: {"id": "task", "name": "case", "status": "completed", "verdict": "未验证"},
+    )
+    monkeypatch.setattr(exports, "session_videos", lambda _: [])
+    with zipfile.ZipFile(exports.export_session_media("task", "video")) as archive:
+        index = json.loads(archive.read("文件清单.json"))
+        assert index["videos"] == ["任务录屏/电脑/clip.mp4"]
+        assert archive.getinfo(index["videos"][0]).compress_type == zipfile.ZIP_STORED