split export

apps/edr-freight-api/src/modules/rule-engine/dto/create-rate.dto.ts

@@ -74,9 +74,14 @@ export class CreateRateDto {
   @Transform(({ value }) => Number(value))
   rateValue!: number;
 
-  @ApiProperty({ enum: RATE_UNITS, description: 'Unit basis for the rate' })
+  @ApiPropertyOptional({
+    enum: RATE_UNITS,
+    description:
+      'Unit basis for the rate. Optional for shapes with a forced unit (overweight is always PER_TON — the admin form hides the field and omits it); required otherwise.',
+  })
+  @IsOptional()
   @IsIn([...RATE_UNITS])
-  rateUnit!: string;
+  rateUnit?: string;
 }
 
 export class SubmitRateForApprovalDto {