complete rule engine and booking flow

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

@@ -0,0 +1,31 @@
+import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
+import { IsBoolean, IsInt, IsOptional, IsString, MaxLength, Min } from 'class-validator';
+
+const ROLES = ['LINE_STAFF', 'DIRECTOR', 'CEO'] as const;
+
+export class CreateApprovalRuleDto {
+  @ApiProperty({ description: 'True = Director+CEO chain; False = LineStaff+Director chain' })
+  @IsBoolean()
+  requiresDirectorApproval!: boolean;
+
+  @ApiProperty({ description: 'Step sequence number (1 = first, 2 = second)', minimum: 1 })
+  @IsInt()
+  @Min(1)
+  stepOrder!: number;
+
+  @ApiProperty({ enum: ROLES, description: 'Role required to action this step' })
+  @IsString()
+  @MaxLength(30)
+  requiredRole!: string;
+
+  @ApiProperty({ description: 'Label shown in UI, e.g. "Review & Approve"', maxLength: 50 })
+  @IsString()
+  @MaxLength(50)
+  actionLabel!: string;
+
+  @ApiPropertyOptional({ enum: ROLES, description: 'Role explicitly blocked from actioning this step' })
+  @IsOptional()
+  @IsString()
+  @MaxLength(30)
+  blocksRole?: string;
+}