fix: uniqueness (#1710)

* fix: uniqueconstraint to lower

* feat: change org

* feat: org change test

* feat: change org

* fix: tests

* fix: handle domain claims correctly

* feat: update org

Co-authored-by: fabi <fabienne.gerschwiler@gmail.com>

internal/admin/repository/user.go

@@ -0,0 +1,11 @@
+package repository
+
+import (
+	"context"
+
+	"github.com/caos/zitadel/internal/user/model"
+)
+
+type UserRepository interface {
+	SearchUsers(ctx context.Context, request *model.UserSearchRequest) (*model.UserSearchResponse, error)
+}