fix(sessions): make SessionLogFile.AppendLine deterministic under Windows share-mode races#996

Aaronontheweb merged 3 commits into

netclaw-dev:devnetclaw-dev/netclaw:devfrom

Aaronontheweb:fix/session-log-windows-sharing-violationAaronontheweb/netclaw:fix/session-log-windows-sharing-violationCopy head branch name to clipboard