Editable installs (-e) work via a .pth file that is only processed at
Python startup. In Colab the kernel is already running when setup.sh
installs the plugin, so the .pth file never gets picked up and
data_designer_unstructured_seed is not importable.
Remove -e so pip copies the package files directly into site-packages,
which the live kernel can find immediately. Local venv installs are
unaffected since the venv is always created fresh before install.