refactor(perception): isolate detector runtime

src/k1link/perception/detector.py

@@ -12,7 +12,9 @@ from typing import Final
 import numpy as np
 from numpy.typing import NDArray
 
-from k1link.compute.yolox_object_detector import (
+from .contracts import BoundingRegion2D, ObjectProposal2D
+from .providers import SourcePacket
+from .yolox_object_detector import (
     FROZEN_YOLOX_CONFIG,
     YOLOX_MODEL_ID,
     YOLOX_MODEL_VERSION,
@@ -24,9 +26,6 @@ from k1link.compute.yolox_object_detector import (
     preprocess_raw_kb4,
 )
 
-from .contracts import BoundingRegion2D, ObjectProposal2D
-from .providers import SourcePacket
-
 FROZEN_YOLOX_PROVIDER_ID: Final = "triton-yolox-s-raw-kb4/v1"
 FROZEN_YOLOX_MODEL_ID: Final = f"{YOLOX_MODEL_ID}:{YOLOX_MODEL_VERSION}"
 FROZEN_YOLOX_PREPROCESS_ID: Final = "raw-kb4-valid-fov-letterbox/v1"