5092896a1e
Per feedback, 'New role' (and Edit) now open a dedicated page instead of a
modal:
- New RoleForm full-page component + view at /admin/roles/create and
/admin/roles/{role}/edit (name, description, permission checkboxes; saves
and redirects back to the list).
- RoleManager trimmed: the create/edit modal and its logic removed; 'New role'
and the per-row/view-modal Edit are now links to the new pages.
- Kept the read-only View modal, single + bulk delete, and protections.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>