deploy/docker/RUN.txt only documented docker build/run per component with
no explanation of docker-compose, multi-host profiles, or how the images
relate to bin/*. Adds a full "Развёртывание в Docker" section to SETUP.md
covering requirements, single-host and multi-host docker-compose flows,
per-component docker build/run (absorbing RUN.txt's content with more
context), rebuilding images after code changes, and troubleshooting.
README.md now points here as the primary source, with RUN.txt kept as a
quick command reference.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>