Tests using /nonexistent/... paths fail in sandboxed environments
where they return 'permission denied' instead of 'not exists'.
Use /tmp/... paths instead which reliably return 'not exists'.
The DisableDockerUpdateActions setting was being saved to disk but not
updated in h.config, causing the UI toggle to appear to revert on page
refresh since the API returned the stale runtime value.
Related to #1023
Fixes bug where allowed_peer_gids was populated from config but never
checked during authorization, creating false sense of security.
Changes:
- authorizePeer() now checks GIDs in addition to UIDs
- Peer authorized if UID OR GID matches allowlist
- Debug logging shows which rule granted access (UID vs GID)
- Full test coverage for GID-based authorization
Security benefit: GID-based policies now actually enforced as
administrators expect.
Related to security audit 2025-11-07.
Co-authored-by: Codex <codex@openai.com>
