Add EnvelopeReports DbSet to EGDbContextBase

Added EnvelopeReports DbSet property to EGDbContextBase, enabling Entity Framework to manage and query EnvelopeReport entities.

EnvelopeGenerator.Infrastructure/EGDbContext.cs

@@ -79,6 +79,8 @@ public abstract class EGDbContextBase : DbContext
 
     public DbSet<ClientUser> ClientUsers { get; set; }
 
+    public DbSet<EnvelopeReport> EnvelopeReports { get; set; }
+
     private readonly DbTriggerParams _triggers;
 
     private readonly ILogger