Universal isomorphic-git receive-pack push path shipped & verified: sshsig.ts + mem-fs.ts + git-push.ts + commitSigned on GitHost/Gitea/GitHub. Full SW suite 163/163, build:all bundles isomorphic-git into the SW, /security-review clean. Tasks 3-5 remain HELD on Dev-A + Dev-B merge. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01LKBbrAjmpVXMEK15pNi3Ha