Fix recent timeseries OpenAPI schema

[krowvin]

Summary

While working with the TS recent method in cwmsjs I found an issue with the annotations.
I.e. (Note if this change is brought in this will need to be regenerated on the generator)
https://hydrologicengineeringcenter.github.io/cwms-data-api-client-javascript/classes/TimeSeriesApi.html#getTimeSeriesRecent.getTimeSeriesRecent-1

This fixes the OpenAPI response schema for GET /timeseries/recent.

The controller returns and formats List<RecentValue>, but the OpenAPI annotation documented the 200 JSON response as Tsv[]. That caused generated clients to map the endpoint to the wrong model and drop the useful recent-value payload fields such as id and dqu.

This updates the annotation to use RecentValue[] and adds a regression test to confirm the documented response type stays aligned with the controller behavior.

Validation

• Added a unit test asserting TimeSeriesRecentController.handle documents the 200 response as RecentValue.

• Attempted to run:

  .\gradlew.bat :cwms-data-api:test --tests cwms.cda.api.TimeSeriesControllerTest

• Local validation is currently blocked on Java 21 by a pre-existing compile issue in TimeSeriesDaoImpl.java, where unqualified Record is ambiguous between org.jooq.Record and java.lang.Record.

• The PR CI currently runs on Java 11, where that ambiguity does not occur. Asked about possibly testing CI PR for java 21 as well.

Checklist

• AI tools used