Update EndpointAuth references to fully qualified name

Replaced unqualified EndpointAuth with Domain.Entities.EndpointAuth
in DtoMappingProfile and IRecDbContext to improve clarity and
avoid potential naming conflicts.

src/ReC.Application/Common/Interfaces/IRecDbContext.cs

@@ -31,7 +31,7 @@ public interface IRecDbContext
     public DbSet<Endpoint> Endpoints { get; set; }
 
     [Obsolete("Use Views instead.")]
-    public DbSet<EndpointAuth> EndpointAuths { get; set; }
+    public DbSet<Domain.Entities.EndpointAuth> EndpointAuths { get; set; }
 
     [Obsolete("Use Views instead.")]
     public DbSet<Domain.Entities.Profile> Profiles { get; set; }