feat: add rental_category/rate to Room, rental_type/tenant_id to Occupancy, tenant_id to Student

apps/server/src/occupancies/dto/occupancy.dto.ts

@@ -17,6 +17,14 @@ export class CheckInDto {
   @IsOptional()
   @IsString()
   notes?: string;
+
+  @IsOptional()
+  @IsString()
+  rentalType?: string;
+
+  @IsOptional()
+  @IsInt()
+  tenantId?: number;
 }
 
 export class CheckOutDto {

apps/server/src/occupancies/occupancies.service.ts

@@ -65,6 +65,8 @@ export class OccupanciesService {
       roomId: dto.roomId,
       checkInDate: dto.checkInDate,
       billingStartDate: dto.billingStartDate || dto.checkInDate,
+      rentalType: dto.rentalType,
+      tenantId: dto.tenantId,
       notes: dto.notes,
     });
     const saved = await this.repo.save(occ);