Remove Supabase

The database moved to a container of our own; the platform is gone.
This takes out what was left of it — and, where the leftovers were load
bearing, moves rather than deletes.

Moved, not deleted:

  supabase/migrations/  -> db/migrations/      the schema's source of truth
  supabase/build-org.ts -> scripts/build-org.ts
  lib/supabase/types.ts -> lib/types.ts        52 import sites repointed

The bookkeeping needed care. It lived in `supabase_migrations.schema_migrations`,
and simply renaming the schema would have left the runner facing an empty
table: it would have called all 67 migrations pending and replayed them
against a database that is long since current. So the runner now creates
`migrationen.schema_migrations` and, once, copies the old rows across —
guarded so a second run does nothing and a fresh database skips it entirely.
Only then does migration 20260907100000 drop the old schema.

Deleted: the CLI config, the seed, the historical schema/function dumps
(nothing read them), scripts/umzug-von-supabase.sh (the move is done), and
both Supabase packages plus the CLI. Nothing in the application imported
them — the build now succeeds with no environment variables at all, which
is the proof.

Integration tests: six of them signed in through Supabase Auth and asserted
against the anon key and the service role. That model is gone, so the tests
were not portable — they are deleted. session-context and
employee-status-filter already ran on pg and are untouched; om-reporting is
ported to a direct connection because it guards a real risk (the reporting
line rule exists twice, once in SQL and once in TypeScript).

CI: the integration job started a Supabase stack. It now runs a postgres
service, applies deploy/db-init and every migration to an empty database —
that was the valuable part, and it still holds — then checks that a second
run is a no-op, which is what proves the bookkeeping works.

Docs: security-review.md audited a service-role key, a cookie adapter and
auth.users, none of which exist. Restating findings about removed components
would suggest today's system had been reviewed; it has not. It now records
what was removed and says a fresh review is due. data-model.md was already
marked obsolete and described the pre-OM schema; azure-migration.md was a
plan for a route not taken. Both deleted.

Verified: npm ci, typecheck, lint, 445 tests, build — all clean without the
packages. Integration tests skip cleanly with no database. Migration SQL and
the runner are reviewed but NOT executed: no Docker here, and the old
instance no longer resolves.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

db/migrations/20260718160000_dependents_effective_dating.sql

@@ -0,0 +1,214 @@
+-- Angehörige add/remove now take a "Wirksam ab" like every other mutation
+-- in Daten ändern — a future-dated add/remove is queued the same way
+-- transfer/promotion/contract changes already are (see
+-- 20260714120050_pending_org_changes.sql) and picked up by the existing
+-- apply_due_pending_changes() cron job once due.
+
+alter table pending_org_changes drop constraint pending_org_changes_change_type_check;
+alter table pending_org_changes add constraint pending_org_changes_change_type_check check (change_type in (
+  'transfer', 'promotion', 'karenz_start', 'karenz_return', 'contract_change', 'reorg', 'dependent_add', 'dependent_remove'
+));
+
+-- ── Angehörige:n hinzufügen: now effective-dated ─────────────────────
+-- Return type changes uuid -> void (a deferred add has no row yet to
+-- return an id for), which CREATE OR REPLACE can't do in place.
+drop function if exists add_employee_dependent(jsonb);
+
+create function add_employee_dependent(payload jsonb)
+returns void language plpgsql as $$
+declare
+  v_employee_id uuid := (payload->>'employee_id')::uuid;
+  v_employee_name text;
+  v_effective_date date := coalesce(nullif(payload->>'effective_date', '')::date, current_date);
+  v_dep_name text := (payload->>'first_name') || ' ' || (payload->>'last_name');
+begin
+  perform require_hr_admin();
+  select first_name || ' ' || last_name into v_employee_name from employees where id = v_employee_id;
+  if not found then
+    raise exception 'Mitarbeiter:in nicht gefunden.';
+  end if;
+
+  if v_effective_date <= current_date then
+    insert into employee_dependents (employee_id, first_name, last_name, relationship, sv_nummer, birth_date)
+      values (
+        v_employee_id, payload->>'first_name', payload->>'last_name', payload->>'relationship',
+        nullif(payload->>'sv_nummer', ''), (payload->>'birth_date')::date
+      );
+  else
+    insert into pending_org_changes (employee_id, change_type, effective_date, payload)
+      values (v_employee_id, 'dependent_add', v_effective_date, payload);
+  end if;
+
+  insert into employee_history (employee_id, event_date, event_type, description)
+    values (
+      v_employee_id, v_effective_date, 'Stammdatenänderung',
+      'Angehörige:r hinzugefügt: ' || v_dep_name || ' (' || (payload->>'relationship') || '), wirksam ab ' || v_effective_date
+    );
+  insert into audit_log (actor_user_id, actor_name, action, target_label, target_employee_id, details)
+    values (
+      auth.uid(), current_actor_name(), 'Angehörige:r hinzugefügt', v_employee_name, v_employee_id,
+      v_dep_name || ' (' || (payload->>'relationship') || '), wirksam ab ' || v_effective_date
+    );
+end;
+$$;
+
+-- ── Angehörige:n entfernen: now effective-dated ──────────────────────
+create or replace function delete_employee_dependent(payload jsonb)
+returns void language plpgsql as $$
+declare
+  v_dep employee_dependents%rowtype;
+  v_employee_name text;
+  v_effective_date date := coalesce(nullif(payload->>'effective_date', '')::date, current_date);
+begin
+  perform require_hr_admin();
+  select * into v_dep from employee_dependents where id = (payload->>'dependent_id')::uuid;
+  if not found then
+    raise exception 'Angehörige:r nicht gefunden.';
+  end if;
+  select first_name || ' ' || last_name into v_employee_name from employees where id = v_dep.employee_id;
+
+  if v_effective_date <= current_date then
+    delete from employee_dependents where id = v_dep.id;
+  else
+    insert into pending_org_changes (employee_id, change_type, effective_date, payload)
+      values (v_dep.employee_id, 'dependent_remove', v_effective_date, jsonb_build_object('dependent_id', v_dep.id));
+  end if;
+
+  insert into employee_history (employee_id, event_date, event_type, description)
+    values (
+      v_dep.employee_id, v_effective_date, 'Stammdatenänderung',
+      'Angehörige:r entfernt: ' || v_dep.first_name || ' ' || v_dep.last_name || ' (' || v_dep.relationship || '), wirksam ab ' || v_effective_date
+    );
+  insert into audit_log (actor_user_id, actor_name, action, target_label, target_employee_id, details)
+    values (
+      auth.uid(), current_actor_name(), 'Angehörige:r entfernt', v_employee_name, v_dep.employee_id,
+      v_dep.first_name || ' ' || v_dep.last_name || ' (' || v_dep.relationship || '), wirksam ab ' || v_effective_date
+    );
+end;
+$$;
+
+-- ── apply_due_pending_changes: dependent_add/dependent_remove branches ──
+create or replace function apply_due_pending_changes()
+returns int
+language plpgsql
+security definer
+set search_path = public
+as $$
+declare
+  v_rec record;
+  v_team_id uuid;
+  v_division_id uuid;
+  v_is_lead boolean;
+  v_manager uuid;
+  v_remaining int;
+  v_applied_count int := 0;
+begin
+  for v_rec in
+    select * from pending_org_changes
+    where status = 'pending' and effective_date <= current_date
+    order by created_at
+  loop
+    if v_rec.change_type = 'transfer' then
+      select is_lead into v_is_lead from employees where id = v_rec.employee_id;
+      select division_id into v_division_id from teams t join departments d on d.id = t.department_id
+        where t.id = (v_rec.payload->>'new_team_id')::uuid;
+      v_manager := resolve_manager_for((v_rec.payload->>'new_team_id')::uuid, v_is_lead, v_division_id);
+      update employees set
+        team_id = (v_rec.payload->>'new_team_id')::uuid,
+        job_title = coalesce(nullif(v_rec.payload->>'new_title', ''), job_title),
+        manager_id = v_manager
+      where id = v_rec.employee_id;
+
+    elsif v_rec.change_type = 'promotion' then
+      update employees set
+        job_title = coalesce(v_rec.payload->>'new_title', job_title),
+        paygrade = coalesce((v_rec.payload->>'new_paygrade')::paygrade_type, paygrade)
+      where id = v_rec.employee_id;
+
+    elsif v_rec.change_type = 'karenz_start' then
+      update employees set status = 'Karenz', karenz_return_date = (v_rec.payload->>'planned_return_date')::date
+        where id = v_rec.employee_id;
+
+    elsif v_rec.change_type = 'karenz_return' then
+      select team_id, division_id, is_lead into v_team_id, v_division_id, v_is_lead
+        from employees where id = v_rec.employee_id;
+      v_manager := resolve_manager_for(v_team_id, v_is_lead, v_division_id);
+      update employees set
+        status = 'Aktiv',
+        karenz_return_date = null,
+        karenz_start_date = null,
+        manager_id = v_manager,
+        employment_type = coalesce((v_rec.payload->>'employment_type')::employment_type, employment_type),
+        weekly_hours = coalesce((v_rec.payload->>'weekly_hours')::numeric, weekly_hours)
+      where id = v_rec.employee_id;
+
+    elsif v_rec.change_type = 'contract_change' then
+      update employees set
+        first_name = coalesce(v_rec.payload->'person'->>'first_name', first_name),
+        last_name = coalesce(v_rec.payload->'person'->>'last_name', last_name),
+        gender = coalesce((v_rec.payload->'person'->>'gender')::gender_type, gender),
+        birth_date = coalesce((v_rec.payload->'person'->>'birth_date')::date, birth_date),
+        sv_nummer = coalesce(v_rec.payload->'person'->>'sv_nummer', sv_nummer),
+        nationality = coalesce(v_rec.payload->'person'->>'nationality', nationality),
+        address = coalesce(v_rec.payload->'person'->>'address', address),
+        postal_code = coalesce(v_rec.payload->'person'->>'postal_code', postal_code),
+        city = coalesce(v_rec.payload->'person'->>'city', city),
+        address_country = coalesce(v_rec.payload->'person'->>'address_country', address_country),
+        email = coalesce(v_rec.payload->'person'->>'email', email),
+        phone = coalesce(v_rec.payload->'person'->>'phone', phone),
+        title_prefix = case when v_rec.payload->'person' ? 'title_prefix'
+          then coalesce((select array_agg(elem) from jsonb_array_elements_text(v_rec.payload->'person'->'title_prefix') elem), '{}') else title_prefix end,
+        title_suffix = case when v_rec.payload->'person' ? 'title_suffix'
+          then coalesce((select array_agg(elem) from jsonb_array_elements_text(v_rec.payload->'person'->'title_suffix') elem), '{}') else title_suffix end,
+        employment_type = coalesce((v_rec.payload->'contract'->>'employment_type')::employment_type, employment_type),
+        weekly_hours = coalesce((v_rec.payload->'contract'->>'weekly_hours')::numeric, weekly_hours),
+        contract_type = coalesce((v_rec.payload->'contract'->>'contract_type')::contract_type, contract_type),
+        contract_end_date = case when v_rec.payload->'contract' ? 'contract_end_date'
+          then nullif(v_rec.payload->'contract'->>'contract_end_date','')::date else contract_end_date end,
+        worker_type = coalesce((v_rec.payload->'role'->>'worker_type')::worker_type, worker_type),
+        collective_agreement = coalesce((v_rec.payload->'role'->>'collective_agreement')::collective_agreement, collective_agreement),
+        work_days = case when v_rec.payload->'role' ? 'work_days'
+          then coalesce((select array_agg(elem) from jsonb_array_elements_text(v_rec.payload->'role'->'work_days') elem), '{}') else work_days end,
+        is_betriebsrat = coalesce((v_rec.payload->'role'->>'is_betriebsrat')::boolean, is_betriebsrat),
+        has_dienstwagen = coalesce((v_rec.payload->'role'->>'has_dienstwagen')::boolean, has_dienstwagen),
+        is_laterale_fuehrung = coalesce((v_rec.payload->'role'->>'is_laterale_fuehrung')::boolean, is_laterale_fuehrung),
+        is_c_level = coalesce((v_rec.payload->'role'->>'is_c_level')::boolean, is_c_level)
+      where id = v_rec.employee_id;
+
+    elsif v_rec.change_type = 'dependent_add' then
+      insert into employee_dependents (employee_id, first_name, last_name, relationship, sv_nummer, birth_date)
+        values (
+          v_rec.employee_id, v_rec.payload->>'first_name', v_rec.payload->>'last_name', v_rec.payload->>'relationship',
+          nullif(v_rec.payload->>'sv_nummer', ''), (v_rec.payload->>'birth_date')::date
+        );
+
+    elsif v_rec.change_type = 'dependent_remove' then
+      delete from employee_dependents where id = (v_rec.payload->>'dependent_id')::uuid;
+
+    elsif v_rec.change_type = 'reorg' then
+      select is_lead into v_is_lead from employees where id = v_rec.employee_id;
+      select division_id into v_division_id from teams t join departments d on d.id = t.department_id
+        where t.id = (v_rec.payload->>'target_team_id')::uuid;
+      v_manager := resolve_manager_for((v_rec.payload->>'target_team_id')::uuid, v_is_lead, v_division_id);
+      update employees set team_id = (v_rec.payload->>'target_team_id')::uuid, manager_id = v_manager
+        where id = v_rec.employee_id;
+    end if;
+
+    update pending_org_changes set status = 'applied', applied_at = now() where id = v_rec.id;
+    v_applied_count := v_applied_count + 1;
+
+    if v_rec.reorg_scenario_id is not null then
+      select count(*) into v_remaining from pending_org_changes
+        where reorg_scenario_id = v_rec.reorg_scenario_id and status = 'pending';
+      if v_remaining = 0 then
+        update reorg_scenarios set applied = true, applied_at = now() where id = v_rec.reorg_scenario_id;
+      end if;
+    end if;
+  end loop;
+
+  return v_applied_count;
+end;
+$$;
+
+revoke execute on function apply_due_pending_changes() from public, anon, authenticated;
+grant execute on function apply_due_pending_changes() to service_role;