Continuous integration (CI) reference projects

Step 3.2 ships two minimal reference projects:

• examples/reference-projects/basic-pytest
• examples/reference-projects/authenticated-pytest

Both projects provide:

• a pytest smoke suite using simulacat fixtures,
• a GitHub Actions workflow at .github/workflows/ci.yml,
• standard CI setup via actions/setup-python and actions/setup-node.

The authenticated reference also demonstrates ScenarioConfig token metadata and validates the resulting Authorization header.