6d672ab09a
CI Lint fixes: - docs/openapi.yaml: bump version 2.2.0 → 2.2.3 (was out of sync with package.json) - CHANGELOG.md: add '## [Unreleased]' as first section (required by check:docs-sync) Electron Linux fix: - electron-release.yml: add 'gem install fpm' step for Linux builds fpm is required by electron-builder to package .deb installers; ubuntu-latest runners don't have it pre-installed Docker publish: - docker-publish.yml: add DOCKER_BUILDKIT_INLINE_CACHE env; prev 502 was a transient Docker Hub network error, no code change needed