Update secaggplus workflow log

[panh99]

The ServerApp log when using SecAggPlusWorkflow:

The ServerApp log in app-secure-aggregation when using SecAggPlusWorkflowWithLogs:

This PR also fixed the following small errors in SA-related code:

• Replaced named_values with ConfigsRecord and configs. The named_values is an old name that should be removed.
• Wrote the history when the secure aggregation was completed. Previously, the SecAggPlus workflow does not write the history like the default_fit_workflow.
• Renamed masked input/masked inputs to masked vectors, which is easier to understand.