Synchronize v0.8.42 versions, README, frontend expectations, changelog, roadmap, 20-iteration maintenance log, and release notes after the validated hardening PR.
Centralize versioning, validate package metadata, automate prerelease publication with ZIP and SHA-256, and add one-command GitHub administrator setup.
Upgrade the public project homepage, document the bilingual interface model, and add repository contribution, security, issue, and pull request guidance.