feat: implement project development module, transfer management features, and industrial AVM model integration

apps/api/src/modules/transfer/presentation/dto/generate-transfer-upload-urls.dto.ts

@@ -0,0 +1,28 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { Type } from 'class-transformer';
+import { ArrayMaxSize, ArrayMinSize, IsArray, IsMimeType, IsOptional, IsString, ValidateNested } from 'class-validator';
+
+class UploadFileSpec {
+  @ApiProperty({ example: 'sofa-front.jpg' })
+  @IsString()
+  fileName!: string;
+
+  @ApiProperty({ example: 'image/jpeg' })
+  @IsMimeType()
+  mimeType!: string;
+}
+
+export class GenerateTransferUploadUrlsDto {
+  @ApiProperty({ required: false, description: 'Listing ID (null for draft uploads)' })
+  @IsOptional()
+  @IsString()
+  listingId?: string;
+
+  @ApiProperty({ type: [UploadFileSpec], minItems: 1, maxItems: 10 })
+  @IsArray()
+  @ArrayMinSize(1)
+  @ArrayMaxSize(10)
+  @ValidateNested({ each: true })
+  @Type(() => UploadFileSpec)
+  files!: UploadFileSpec[];
+}