Fix Defect #826 - FlowLogEntry throws exception for empty recordId

[krishnandusarkar]

While attempting to log from Flows, I was encountering an unhandled exception when the Id field was either left blank.

This issue arose because the FlowLogEntry class defined the recordId parameter as an Id type, which is non-nullable.

To address this, I updated the recordId parameter to use the String type instead. I then added logic to convert it to an Id only if the value is not null. This change successfully resolved the issue.

[jongpie]

@krishnandusarkar thanks for working on this, and apologies for my very late response! I'm going to close this PR though, as this isn't something that can or should be fixed in Nebula Logger:

• Changing the data type from Id to String in FlowLogEntry unfortunately isn't supported in managed packages, so this solution won't work for Nebula Logger's managed package
• @jkranz-rk (one of the Flow product managers at Salesforce) mentioned in this comment that this should now be solved in the Winter '26 release/any Flows using v65.0 or newer

I'll confirm that the Winter '26 release definitely fixed the issue before I close out issue #826. Thanks again!