#25351 [Java][Spring] useRecords: records as parameter objects

Fourth step towards #10490. With useRecords, query objects become records; list or map elements and objects with a renamed, nullable, untyped or defaulted nested model or container stay classes, with everything below. Renamed scalars get @BindParam, so ?my-name=x binds; unlike the class, ?limit= gives the default and ?name.x=1 on a String is 500. A large query object binds slower than the class until spring-projects/spring-framework#37536.

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Summary by cubic

With useRecords, query parameter objects are now generated as Java records, with @BindParam on renamed scalar components so documented names like ?sort-order=x still bind. Models that Spring's data binder cannot fill as records stay classes, and everything nested below them stays a class too.

• Parameter objects stay classes when they contain a renamed model or container, a nullable or untyped component, a container without an initial value, or a model with a default; list and map elements of a parameter object and models nested in them also stay classes.
• Models converted from one string (header, cookie, path, array items, map values) and members of a oneOf/anyOf query parameter remain classes.
• The same schema used as a query object and a request body is a record in both roles; the @BindParam annotation does not affect Jackson binding.