update some important issues

src/claim-request-management/dto/user-objection-v2.dto.ts

@@ -0,0 +1,24 @@
+import { ApiPropertyOptional } from "@nestjs/swagger";
+import { Type } from "class-transformer";
+import { IsArray, IsOptional, ValidateNested } from "class-validator";
+import { NewPartDto, UserObjectionPartDto } from "./user-objection.dto";
+
+/**
+ * V2 user objection body — same shape as v1 {@link import("./user-objection.dto").UserObjectionDto}
+ * with nested validation enabled for the v2 controller pipeline.
+ */
+export class UserObjectionV2Dto {
+  @ApiPropertyOptional({ type: [UserObjectionPartDto] })
+  @IsOptional()
+  @IsArray()
+  @ValidateNested({ each: true })
+  @Type(() => UserObjectionPartDto)
+  objectionParts?: UserObjectionPartDto[];
+
+  @ApiPropertyOptional({ type: [NewPartDto] })
+  @IsOptional()
+  @IsArray()
+  @ValidateNested({ each: true })
+  @Type(() => NewPartDto)
+  newParts?: NewPartDto[];
+}