add cancellationReason

src/modules/bookings/bookings.service.ts

@@ -324,9 +324,22 @@ export class BookingsService {
     return this.repo.save(row);
   }
 
-  async cancel(id: string, actor?: AuthUser): Promise<BookingEntity> {
+  async cancel(
+    id: string,
+    actor?: AuthUser,
+    payload?: { cancellationReason?: string },
+  ): Promise<BookingEntity> {
     const row = await this.findOne(id);
     this.assertCanCancelBooking(row, actor);
+
+    const reason = payload?.cancellationReason?.trim() ?? '';
+    if (actor?.role === UserRole.BUSINESS_OWNER && !reason) {
+      throw new BadRequestException('Cancellation reason is required');
+    }
+    if (reason) {
+      row.cancellationReason = reason;
+    }
+
     this.applyStatusTransition(row, BookingStatus.CANCELLED, actor);
     return this.repo.save(row);
   }