Pin every dependency across all Docker builds so upgrades are intentional.
Verified by building all 3 production images and diffing pip freeze against
known-good v1.83.0-nightly baselines — zero version drift.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix working build from pip
* add tests for proxy_build_from_pip_tests
* doc clean up for deployment
* docs cleanup
* docs build from pip
* fix cd docker/build_from_pip