gettemp.email testing connector v0.2.0 (prerelease)

Prerelease adding the shared v1 JSON contracts plus a dependency-free Python client and pytest fixtures. Local verification passed 21 JavaScript tests and 15 Python tests with 7 subtests, Ruff checks, Python wheel build/install, pip check, and npm package dry-run. The bounded production Developer API E2E runner is included but is not claimed as passed because the available test account does not currently have a Pro entitlement. npm/PyPI publication and automated GitHub Actions remain deferred.