refactor(perception): isolate detector runtime

tests/test_detector_replay.py

@@ -11,11 +11,6 @@ import numpy as np
 import pytest
 from numpy.typing import NDArray
 
-from k1link.compute.yolox_object_detector import (
-    YOLOX_CONFIG_SHA256,
-    YOLOX_MODEL_SHA256,
-    YOLOX_VALID_FOV_SHA256,
-)
 from k1link.perception.contracts import (
     ClockBasis,
     ModalityOutcome,
@@ -34,6 +29,11 @@ from k1link.perception.detector_replay_result import (
     require_m4_detector_replay_acceptance,
 )
 from k1link.perception.providers import SourcePacket
+from k1link.perception.yolox_object_detector import (
+    YOLOX_CONFIG_SHA256,
+    YOLOX_MODEL_SHA256,
+    YOLOX_VALID_FOV_SHA256,
+)
 
 
 class _Source: