docs: confirm npm v0.19.3 publication
docs: publish v0.19.3 verified channel status
docs: preserve previous release notes below current candidate
docs: record Windows-tested v0.19.3 release candidate
Record Windows ACL correction and v0.19.2 candidate
Document corrected team release candidate
docs: add bilingual local-first team memory guide for v0.19.0
docs: document v0.18.5 Discussion, native CG and Codex plugin