bd-data-object

Add or modify DataObject subclasses inside the better-data library — the immutable, attribute-decorated DTOs the whole library is built around. Every DTO is final readonly class extends DataObject with constructor-promoted typed parameters; sources hydrate via ::fromArray, sinks project via SinkProjection, the Presenter renders via HasPresenter trait. Important — every trailing constructor parameter MUST have a default; otherwise PHP Reflection reports isDefaultValueAvailable=false on earlier params too and DataObject throws MissingRequiredFieldException at hydration. Also Secret fields default to ?Secret = null (never new Secret('')), encrypt requires the Secret type, and DTOs never grow public mutators (use ->with()). Use when adding a new DTO (e.g. UserProfileDto), adding fields to an existing DTO, or reviewing a PR introducing a class extending DataObject. Triggers on extends DataObject, DataObject::fromArray, ->with(), HasWpSources, HasWpSinks, HasPresenter, MissingRequiredFieldException in better-data.