Task 1 checkpoint resolved: approve-both, granted 2026-08-06 by the
project owner (D-04 one-way schema extension: Group.internalName +
Group.ldapObjectGuid, both nullable, one versioned migration).
Adds the Phase 16 tracer slice through every layer:
- Prisma schema: Group.internalName, Group.ldapObjectGuid,
@@unique([tenantId, ldapObjectGuid]) (Prisma client regenerated;
the versioned migration itself is Task 3, separately blocking).
- LdapService: listGroups() now reads objectGUID via
explicitBufferAttributes and flags alreadyImported per tenant;
new importGroupsByDn() creates a Group per checked DN with
name/ldapDn/ldapObjectGuid, reject-with-report on name collision
(P2002 on name -> nameCollisions, P2002 on ldapObjectGuid ->
skipped), never aborts the batch on one DN's error; new static
escapeLdapFilterBuffer() for Plan 16-03's later existence sweep.
- DTO/controller: ImportGroupsDto, POST /ldap/groups/import
(ADMIN/SUPER_ADMIN), listGroups route now tenant-scoped.
- Frontend: new "AD-Gruppen importieren" section in /admin/ldap,
own discovery/import handlers with a visible error state
(Owner decision 2026-08-06 — no silent catch{} for these two
handlers), i18n keys in de.json/en.json.
- Tests: 8 new cases covering the full <behavior> list plus
listGroups sort order and alreadyImported.
Flagged assumption (RESEARCH.md A1/A2): objectGUID rename-stability
and the binary filter syntax are unverified against a real AD —
this plan only WRITES the GUID, Plan 16-03 reads it back live.
schalli
3523e43a13