CREATE INDEX idx_import_jobs_tenant_created ON import_jobs (tenant_id, created_at);
CREATE INDEX idx_import_jobs_tenant_status_created ON import_jobs (tenant_id, status, created_at);
CREATE INDEX idx_import_validation_tenant_created ON import_validation_reports (tenant_id, created_at);
CREATE INDEX idx_import_validation_tenant_idempotency ON import_validation_reports (tenant_id, idempotency_key);
CREATE INDEX idx_export_jobs_tenant_created ON export_jobs (tenant_id, created_at);
CREATE INDEX idx_export_jobs_tenant_status_created ON export_jobs (tenant_id, status, created_at);