Semgrep change history: Intermittent login failures on semgrep.dev

Semgrep reported a major Login/SSO outage causing intermittent semgrep.dev login failures for GitHub and GitLab users, who could see an "unrecoverable error" after clicking Continue. It started at 2026-10-05 16:00 UTC and lasted 14 min, resolving at 2026-10-05 16:14 UTC after a fix was rolled out.