Replaced DigitalData.Modules.Database with EnvelopeGenerator.ServiceHost.Jobs.Infrastructure in using statements and class namespaces. All database operations are now organized under the new namespace for better clarity and project structure.
Refactored ReportModel to use MSSQLServer Database via primary constructor, removed BaseModel inheritance and State-based constructor. Marked class and List method as obsolete, recommending EnvelopeReport mediator queries. Updated namespace and using directives.
