Add compliance controls

AgentCompany-New/src/main/database/migrations/012-compliance-controls.ts

@@ -0,0 +1,47 @@
+export const complianceControlsSchema = `
+  alter table chat_spaces add column retention_policy text not null default 'standard_365d';
+
+  create table if not exists compliance_exports (
+    id text primary key,
+    org_id text not null references organizations(id) on delete cascade,
+    subject_type text not null,
+    subject_id text not null,
+    export_type text not null,
+    state text not null,
+    payload_json text not null,
+    requested_by_employee_id text references employees(id) on delete set null,
+    created_at text not null,
+    completed_at text
+  );
+
+  create table if not exists legal_holds (
+    id text primary key,
+    org_id text not null references organizations(id) on delete cascade,
+    entity_type text not null,
+    entity_id text not null,
+    reason text not null,
+    created_by_employee_id text references employees(id) on delete set null,
+    active integer not null,
+    created_at text not null,
+    released_at text
+  );
+
+  create table if not exists retention_freezes (
+    id text primary key,
+    org_id text not null references organizations(id) on delete cascade,
+    scope_type text not null,
+    scope_id text not null,
+    reason text not null,
+    created_by_employee_id text references employees(id) on delete set null,
+    active integer not null,
+    created_at text not null,
+    released_at text
+  );
+
+  create index if not exists idx_compliance_exports_org_created on compliance_exports(org_id, created_at);
+  create index if not exists idx_legal_holds_org_entity on legal_holds(org_id, entity_type, entity_id, active);
+  create index if not exists idx_retention_freezes_org_scope on retention_freezes(org_id, scope_type, scope_id, active);
+
+  insert into schema_migrations(version, name, applied_at)
+  values (12, 'compliance_controls', datetime('now'));
+`;