EMCS-716 (DraftSubmissionController and User Details for Message Submitted)

[RobertLaverick]

• We had a note about testing if the audit service returns a future failed. Looking at the library code that isn’t possible as they silently absorb all throwable and turn them into an AuditResult.Failure.
• I feel like I’ve lost my mind over whether or not just calling a def with an EitherT will run it, or if you have to force it to resolve with a map/for-yield/value call. Please check this.
• On reflection, we could probably benefit from having the audit events called in the service layer. (i.e. MessageSubmitted events all come from submitMessageService, regardless of saving successfully or not) - maybe a refactoring ticket when we drop the old audit events.

[platops-pr-bot]

• Your service can now use Java 21. Please set JavaType.OPENJDK_JRE21 in build-jobs - See confluence https://confluence.tools.tax.service.gov.uk/x/xIACM
• uk.gov.hmrc.sbt-auto-build can be updated to 3.24.0 in project/plugins.sbt
• Runtime issues may occur. Change org.playframework.sbt-plugin to 3.0.4 in project/plugins.sbt - to match what uk.gov.hmrc.bootstrap-backend-play-30 uses
• File conf/application-json-logger.xml can be removed. Logging is provided by Bootstrap (since 8.6.0) and can be configured via application config alone - See confluence https://confluence.tools.tax.service.gov.uk/x/9oH1FQ