Add `AdditionalInfo` property to report

[Teo Voinea]

For teams that create their own crash reports, they would like to have additional properties to use in their notification templates.

We can add an Dictionary<string, string> AdditionalInfo to the Report object.

onefuzz/src/ApiService/ApiService/OneFuzzTypes/Model.cs

Lines 489 to 513 in d999603

 public record Report( 
     string? InputUrl, 
     BlobRef? InputBlob, 
     string Executable, 
     string CrashType, 
     string CrashSite, 
     List<string> CallStack, 
     string CallStackSha256, 
     string InputSha256, 
     string? AsanLog, 
     Guid TaskId, 
     Guid JobId, 
     long? ScarinessScore, 
     string? ScarinessDescription, 
     List<string>? MinimizedStack, 
     string? MinimizedStackSha256, 
     List<string>? MinimizedStackFunctionNames, 
     string? MinimizedStackFunctionNamesSha256, 
     List<string>? MinimizedStackFunctionLines, 
     string? MinimizedStackFunctionLinesSha256, 
     string? ToolName, 
     string? ToolVersion, 
     string? OnefuzzVersion, 
     Uri? ReportUrl 
 ) : IReport, ITruncatable<Report> { 

Then in a notification template, someone could reference is by doing something like report.additional_info.my_custom_field

AB#164905

[Justin Moore]

To further inform the implementation, we are looking to add additional fields that correspond to URLs for extra-outputs artifacts we produce from our analyzer task.
We can generate the download URLs ourselves for these artifacts and add them as additional_info fields, but if they were made explicit then perhaps your agent could add metadata such as error information if the upload failed (for instance).

[Teo Voinea]

Closing because this already exists as ExtensionData