chore: strengthen backend eslint profile

src/common/decorators/api-safe-error-response.decorator.ts

@@ -1,7 +1,8 @@
-import { HttpStatus, applyDecorators } from '@nestjs/common';
+import { applyDecorators, HttpStatus } from '@nestjs/common';
 import {
   ApiExtraModels,
   ApiProperty,
+  ApiPropertyOptional,
   ApiResponse,
   getSchemaPath,
 } from '@nestjs/swagger';
@@ -13,8 +14,8 @@ export class ProblemDetailsDto {
   @ApiProperty({ example: 'UNAUTHORIZED' })
   declare code: string;
 
-  @ApiProperty({
-    required: false,
+  // eslint-disable-next-line @darraghor/nestjs-typed/api-property-returning-array-should-set-array -- Raw OpenAPI items schema already declares type: array.
+  @ApiPropertyOptional({
     type: 'array',
     items: {
       type: 'object',
@@ -23,7 +24,7 @@ export class ProblemDetailsDto {
     },
     example: [{ pointer: '#/email', detail: 'must be a valid email address' }],
   })
-  errors?: { pointer: string; detail: string }[];
+  errors?: { detail: string; pointer: string }[];
 }
 
 function problemResponse(status: number, description: string) {
@@ -38,7 +39,7 @@ function problemResponse(status: number, description: string) {
   });
 }
 
-export function ApiProblemResponses(): MethodDecorator & ClassDecorator {
+export function ApiProblemResponses(): ClassDecorator & MethodDecorator {
   return applyDecorators(
     ApiExtraModels(ProblemDetailsDto),
     problemResponse(HttpStatus.BAD_REQUEST, 'Invalid request'),