Merge branch 'feature/user-group' into dev

backend/internal/domain/user_group.go

@@ -21,6 +21,12 @@ type UserGroup struct {
 	Members []User `gorm:"-" json:"members,omitempty"`
 }
 
+type GroupRole struct {
+	TenantID   string `json:"tenantId"`
+	TenantName string `json:"tenantName"`
+	Relation   string `json:"relation"`
+}
+
 func (ug *UserGroup) TableName() string {
 	return "user_groups"
 }