fix(server): list training date attendees returns correct object

internal/server/api.go

@@ -521,6 +521,17 @@ func (h *APIHandlers) ListTrainingDateAttendees(ctx context.Context, req ListTra
 		data[idx] = TrainingDateAttendee{
 			Id:          a.ID,
 			Name:        a.Name,
+			Email:       types.Email(a.Email),
+			Phone:       a.Phone,
+			Company:     a.Company,
+			Position:    a.Position,
+			IsStudent:   &a.IsStudent,
+			HasPaid:     a.HasPaid,
+			HasAttended: a.HasAttended,
+			Bill: Price{
+				Amount:   a.Bill.Amount.String(),
+				Currency: a.Bill.Currency,
+			},
 		}
 	}