refactor(lab): перевести RAV004 на канонический Rerun pipeline

tests/test_vegetation_shadow_lab.py

@@ -18,6 +18,11 @@ import k1link.laboratory.vegetation_policy_review as policy_review_module
 import k1link.laboratory.vegetation_policy_video as policy_video_module
 import k1link.laboratory.vegetation_shadow_lab as vegetation_lab_module
 from k1link.laboratory import LaboratoryEvidenceRegistry
+from k1link.laboratory.canonical_rerun_overlay import (
+    CanonicalLabOverlayArtifact,
+    _artifact_is_regular,
+    _video_reference_timestamps,
+)
 from k1link.laboratory.evidence_report import verify_laboratory_evidence_result
 from k1link.laboratory.vegetation_policy_review import seal_vegetation_policy_review
 from k1link.laboratory.vegetation_shadow_lab import seal_vegetation_shadow_lab
@@ -43,6 +48,47 @@ def test_semantic_component_boxes_keep_distinct_objects_separate() -> None:
     ]
 
 
+def test_canonical_video_references_hold_only_missing_source_samples() -> None:
+    session_times = np.arange(10, dtype=np.int64) * 100_000_000 + 39_000_000_000
+    video_times = np.array(
+        [0, 100, 200, 300, 400, 500, 600, 700, 900],
+        dtype=np.int64,
+    ) * 1_000_000
+
+    references = _video_reference_timestamps(video_times, session_times)
+
+    assert references.tolist() == [
+        0,
+        100_000_000,
+        200_000_000,
+        300_000_000,
+        400_000_000,
+        500_000_000,
+        600_000_000,
+        700_000_000,
+        700_000_000,
+        900_000_000,
+    ]
+
+
+def test_canonical_overlay_memory_cache_rejects_same_size_tampering(
+    tmp_path: Path,
+) -> None:
+    path = tmp_path / "overlay.rrd"
+    path.write_bytes(b"RRF2-original")
+    artifact = CanonicalLabOverlayArtifact(
+        path=path,
+        byte_length=path.stat().st_size,
+        sha256=_sha256(path),
+    )
+    assert _artifact_is_regular(artifact)
+
+    path.write_bytes(b"RRF2-tampered")
+
+    assert path.stat().st_size == artifact.byte_length
+    assert not _artifact_is_regular(artifact)
+
+
 def test_route_playback_chunk_descriptor_seals_only_requested_binary_window() -> None:
     points = np.arange(18, dtype="<f4").reshape(6, 3)
     descriptor = _canonical_route_playback_chunk_descriptor(