Session timeout: configurable idle (default 30min) and absolute (default 8h)
timeouts via DB settings, enforced in web/index.php on every request.
Timestamps set at login in action layer; graceful fallback for pre-existing
sessions.
Transaction wrapping: UserAccountService.createFromAdmin/register, roles
create/edit, and permissions edit now wrap multi-step DB operations in
transactions to guarantee atomicity.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
