save temporary changes

...onnect/api/domain/model/submission/SubmissionPayload.java

...c/main/java/dev/fitko/fitconnect/api/services/Sender.java

.../fitko/fitconnect/api/services/schema/SchemaProvider.java

...c/main/java/dev/fitko/fitconnect/client/SenderClient.java

...java/dev/fitko/fitconnect/client/cli/CommandExecutor.java

...dev/fitko/fitconnect/client/sender/SubmissionBuilder.java

...a/dev/fitko/fitconnect/client/sender/steps/BuildStep.java

...t/client/sender/strategies/SendNewSubmissionStrategy.java

...java/dev/fitko/fitconnect/client/util/ValidDataGuard.java

...st/java/dev/fitko/fitconnect/client/SenderClientTest.java

...ev/fitko/fitconnect/client/cli/CommandLineClientTest.java

.../dev/fitko/fitconnect/client/util/ValidDataGuardTest.java

...main/java/dev/fitko/fitconnect/core/SubmissionSender.java

.../fitko/fitconnect/core/schema/SchemaResourceProvider.java