Add YOLO preflight runtime diagnostics

backend/tests/test_sprint13_yolo_preflight.py

@@ -54,7 +54,9 @@ def _manifest(tmp_path: Path, tile_count: int = 1) -> Path:
     return manifest_path
 
 
-def test_yolo_preflight_reports_disabled_without_loading_model(tmp_path: Path) -> None:
+def test_yolo_preflight_reports_disabled_without_loading_model(tmp_path: Path, monkeypatch) -> None:
+    monkeypatch.setenv("YOLO_CONFIG_DIR", str(tmp_path / "ultralytics"))
+
     result = YoloPreflightService.run(
         settings=Settings(yolo_enabled=False, yolo_model_path=str(tmp_path / "missing.pt")),
         tile_manifest_path=str(tmp_path / "missing-manifest.json"),
@@ -66,6 +68,12 @@ def test_yolo_preflight_reports_disabled_without_loading_model(tmp_path: Path) -
     assert result["checks"]["dependencies_available"] is None
     assert result["checks"]["model_file_exists"] is None
     assert result["checks"]["manifest_valid"] is None
+    assert result["runtime"]["dependencies_assumed"] is False
+    assert result["runtime"]["model_directory"] == str(tmp_path)
+    assert result["runtime"]["yolo_config_dir"] == str(tmp_path / "ultralytics")
+    assert "torch_version" in result["runtime"]
+    assert "ultralytics_version" in result["runtime"]
+    assert "cuda_available" in result["runtime"]
 
 
 def test_yolo_preflight_distinguishes_missing_dependencies_from_missing_model(tmp_path: Path) -> None:
@@ -102,6 +110,25 @@ def test_yolo_preflight_validates_model_and_manifest_without_importing_yolo(tmp_
     assert result["tile_count"] == 2
     assert result["will_download_models"] is False
     assert result["will_run_inference"] is False
+    assert result["runtime"]["dependencies_assumed"] is False
+
+
+def test_yolo_preflight_marks_assumed_dependencies_in_runtime_details(tmp_path: Path) -> None:
+    model_path = tmp_path / "model.pt"
+    model_path.write_bytes(b"weights")
+    manifest_path = _manifest(tmp_path, tile_count=1)
+
+    result = YoloPreflightService.run(
+        settings=Settings(yolo_enabled=True, yolo_model_path=str(model_path), yolo_max_tiles=4),
+        tile_manifest_path=str(manifest_path),
+        yolo_adapter_class=MissingDependencyAdapter,
+        assume_dependencies=True,
+    )
+
+    assert result["status"] == "ready"
+    assert result["checks"]["dependencies_available"] is True
+    assert result["runtime"]["dependencies_assumed"] is True
+    assert result["runtime"]["model_directory"] == str(tmp_path)
 
 
 def test_yolo_preflight_can_explicitly_smoke_load_local_model(tmp_path: Path) -> None: