Play Framework

fix: honour @Content(array=@ArraySchema(...)) in OpenAPI annotation reader (PF-101)

OpenApiAnnotationReader.toContent only consulted @Content.schema() and
ignored @Content.array() entirely. Endpoints annotated with the array
form — the standard OpenAPI pattern for list responses — ended up with
an empty MediaType in the spec instead of an ArraySchema wrapping the
declared items type.

Add a fallback in toContent: when the singular @Schema is empty, read
the @ArraySchema from @Content.array() and wrap the inner items schema
in an ArraySchema. The inner schema flows through the same
schemaFromAnnotation path used by the singular form, so $ref-to-
component output stays identical.

Singular @Schema wins on conflict — the array fallback only fires when
the singular form is absent. Empty @Content with neither form continues
to produce an empty MediaType (no regression).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>