- Migration 18: 6 tables + 3 colonnes permission_type + indexes - PermissionManager: heritage page->collection->workspace, least privilege, groups, cache 60s - API /api/v2: pages/collections/properties/groups/users/audit (401/403/404/400) - Guards board.py + collections.py (404/403, admin/owner bypass) - Tests 21/21 (inherit/restricted/private, grant, revoke, batch, group, audit) - Docs + ROADMAP + CHANGELOG + VERSION 6.1.0