Removed [Column] attribute from InsertObjectResult and configured column mapping for NewObjectId in RecDbContext using the Fluent API. This centralizes entity mapping logic in the DbContext.
Introduced InsertObjectResult in ReC.Domain.QueryOutput with a required NewObjectId property mapped to the "oGUID" column. This class will be used to represent the result of object insert operations. Added necessary using directive for data annotations.
BodyQueryResult and HeaderQueryResult were relocated from ReC.Domain.Entities to ReC.Domain.QueryOutput. Updated all references in IRecDbContext and RecDbContext to use the new namespace.
