Documentation (EN/RU under docs/): CI_PIPELINE, CI_SCRIPTS, README indexes, docs/README hub; Mermaid diagrams for stages and needs flow; clarifications for DOCKER_CI_TAG, secondary docker-images jobs, and run-all vs parallel GitLab jobs.
Windows prune/compact guide consolidated in CI_SCRIPTS §7; cross-links from docker-prune-keep-bases.ps1 and CI_PIPELINE.
CI scripts: fix invalid [[ ... ]] combining -n with docker manifest in docker-skip-if-unchanged.sh; when the registry tag already exists, verify docker-context-changed before skipping.
Style: Cyrillic yo (ё) → e (е) in prose; minor spelling fixes.