first commit

src/edge/dto/get-edges.dto.ts

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+import { Transform } from 'class-transformer';
+import { IsOptional, IsString } from 'class-validator';
+import { normalizeOptionalText } from '../../common/normalize-text';
+
+export class GetEdgesDto {
+  @IsOptional()
+  @Transform(({ value }) => normalizeOptionalText(value))
+  @IsString()
+  parentId?: string;
+
+  @IsOptional()
+  @Transform(({ value }) => normalizeOptionalText(value))
+  @IsString()
+  search?: string;
+}