[hemreduru]

Fixes #1324

Problem

When a query chain contains a dynamic where{Column}() / orWhere{Column}() call on an Eloquent Builder or a model scope called through an Eloquent Relation (e.g., $user->posts()->published()->paginate()), EloquentBuilderExtension::getMethodReturnType() returns null. Because unresolved method calls resolve to NeverType, subsequent calls in the chain (such as paginate()) also resolve to never, causing paginated resource collections to lose their links and meta pagination envelope in the generated OpenAPI specification.

Solution

1. Dynamic where / orWhere calls on Builder: Return the current builder instance when a where{Column} or orWhere{Column} call (that is not an explicit Builder method) is invoked on a Builder.
2. Model scopes forwarded through Relation: In forwardRelationCallToRelatedModelBuilder(), delegate method return type resolution to $builderType->getMethodReturnType(...) (which already runs EloquentBuilderExtension for the related model's builder, including local scopes and dynamic where calls) instead of bailing out early when the method is not directly defined on the builder class, and return null only if the resolved return type is UnknownType or NeverType.

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