update concurrentCapacity

src/entities/business.entity.ts

@@ -49,6 +49,10 @@ export class BusinessEntity {
   @Column({ default: false })
   serviceClassesEnabled!: boolean;
 
+  /** Max simultaneous bookings per overlapping time window */
+  @Column({ type: 'int', default: 1 })
+  concurrentCapacity!: number;
+
   @ManyToOne(() => BusinessCategoryEntity, (category) => category.businesses, {
     onDelete: 'RESTRICT',
   })