Harden AI Docker runtime imports

backend/tests/test_sprint8b_yolo_foundation.py

@@ -12,6 +12,8 @@ from app.services.detection_georeferencing import pixel_bbox_to_epsg4326_polygon
 from app.services.detection_service import DetectionService
 from app.services.model_registry_service import ModelRegistryService
 
+ROOT = Path(__file__).resolve().parents[2]
+
 
 class FakeSession:
     def __init__(self, objects=None) -> None:
@@ -171,6 +173,14 @@ def test_yolo_configured_model_reports_configured_with_local_model_and_dependenc
     assert model.version == settings.yolo_model_version
 
 
+def test_yolo_dependency_check_uses_real_imports_not_find_spec() -> None:
+    source = (ROOT / "backend" / "app" / "services" / "yolo_adapter.py").read_text(encoding="utf-8")
+
+    assert 'find_spec("ultralytics")' not in source
+    assert "import ultralytics" in source
+    assert "import torch" in source
+
+
 def test_yolo_run_requires_tile_manifest_path(tmp_path: Path) -> None:
     db, project_id, dataset_id = _project_and_dataset()
     settings = _settings(tmp_path)