fix: 归档删除改为软删除

apps/server/src/entities/occupancy.entity.ts

@@ -41,6 +41,9 @@ export class Occupancy {
   @Column({ type: 'text', nullable: true })
   notes: string;
 
+  @Column({ type: 'varchar', length: 20, default: 'active' })
+  status: 'active' | 'archived';
+
   @Column({ name: 'bed_id', type: 'integer', nullable: true })
   bedId: number;