M29: polish recruiter engineering story

frontend/src/api/types.ts

@@ -224,6 +224,7 @@ export interface RegisterReturnResult {
   odometer_regression: boolean;
   quality_issue_ref: string | null;
   workflow_event_id: string;
+  correlation_id: string;
   next_booking_risk: NextBookingRisk | null;
 }