- Add hashColor utility for unique avatar colors derived from entity names
- Add user creation form with username/displayName/email fields
- Add useCreateUser and useUpdateUser mutation hooks
- Make display names editable on all detail panes (click to edit)
- Protect built-in entities: Admins group and system roles not editable
- Make +Add chip more visible with amber border and background
- Send empty string instead of null for role description on create
- Add .editNameInput CSS for inline name editing
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Tab-based admin page at /admin/rbac with split-pane entity views,
inheritance visualization, OIDC badges, and role/group management.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
