Write rule to ban @ApiParameter on possibly undefined fields

[uPaymeiFixit]

❌ These would not be allowed.

  @ApiProperty({
    description: 'Seat hold codes, separated by |',
    example: 'w|o|l',
  })
  readonly holdCds?: string;

  @ApiPropertyOptional({
    description: 'Seat hold codes, separated by |',
    example: 'w|o|l',
  })
  readonly holdCds: string;