"""Pytest bootstrap: isolate tests from the real ~/.mytoolkit.

config.py and templates_registry.py resolve MYTOOLKIT_HOME at import time
and instantiate a module-level singleton, so the env var must be set before
any mytoolkit module is imported.
"""

import os
import tempfile

os.environ["MYTOOLKIT_HOME"] = tempfile.mkdtemp(prefix="mytoolkit-test-home-")