feat: add project_id and region attributes to database data source schema and refactor user model mapping

stackit/internal/services/postgresflexalpha/user/datasource.go

@@ -178,23 +178,4 @@ func handleReadError(
 			http.StatusForbidden: fmt.Sprintf("Forbidden access to project %q.", projectId),
 		},
 	)
-	model.UserId = types.Int64Value(userId)
-	model.Username = types.StringPointerValue(user.Name)
-
-	if user.Roles == nil {
-		model.Roles = types.SetNull(types.StringType)
-	} else {
-		var roles []attr.Value
-		for _, role := range *user.Roles {
-			roles = append(roles, types.StringValue(string(role)))
-		}
-		rolesSet, diags := types.SetValue(types.StringType, roles)
-		if diags.HasError() {
-			return fmt.Errorf("failed to map roles: %w", core.DiagsToError(diags))
-		}
-		model.Roles = rolesSet
-	}
-	model.Region = types.StringValue(region)
-	model.Status = types.StringPointerValue(user.Status)
-	return nil
 }