Module pages must use a unique top-level directory (audit/) instead of
nesting under admin/ which collides with core's pages/admin/ during
module:build symlink creation. Routes still map admin/* URLs to the
audit/ page directory via manifest route targets.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
In-app notification system with topbar bell icon, dropdown panel,
mark-as-read/dismiss actions, and scheduled cleanup of old read
notifications. Includes event listeners for user.created and
user.deleted events, authorization policy, and full test coverage.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>