fix numba stiching blend error and add numpy blend fallback

build/build_nuitka.py

@@ -20,7 +20,7 @@ from paths import NUITKA_COMPILE_DIR, NUITKA_WHEEL_DIR, REPO_ROOT, repo_path
 from pyproject_utils import bundle_items, extras_require, get_version, install_requires
 from verify import verify_built_wheel
 from wheel_build import publish_wheel_to_sdk, run_bdist_wheel, write_wheel_setup
-from wheel_layout import copy_bundle_items, package_data_from_bundle
+from wheel_layout import copy_bundle_items, copy_orisys_blend, package_data_from_bundle
 
 
 def _reset_dir(path) -> None:
@@ -51,6 +51,10 @@ def build() -> None:
 
     ext_suffix = copy_compiled_orisys(pkg_dir, ext_file)
 
+    wheel_root = NUITKA_WHEEL_DIR / "wheel_root"
+    blend_count = copy_orisys_blend(REPO_ROOT, wheel_root)
+    print(f"Staged orisys_blend Python modules: {blend_count}")
+
     # Bundle rules live in pyproject.toml → [[tool.orisys.bundle.items]]
     bundle = bundle_items(REPO_ROOT)
     copied_counts = copy_bundle_items(REPO_ROOT, pkg_dir, bundle)