feat: complete superadmin management endpoints

backend/app/http/super/v1/users.go

@@ -43,6 +43,24 @@ func (c *users) Get(ctx fiber.Ctx, id int64) (*dto.UserItem, error) {
 	return services.Super.GetUser(ctx, id)
 }
 
+// List user tenants
+//
+// @Router /super/v1/users/:id<int>/tenants [get]
+// @Summary List user tenants
+// @Description List tenants joined by user
+// @Tags User
+// @Accept json
+// @Produce json
+// @Param id path int64 true "User ID"
+// @Param page query int false "Page number"
+// @Param limit query int false "Page size"
+// @Success 200 {object} requests.Pager{items=[]dto.UserTenantItem}
+// @Bind id path
+// @Bind filter query
+func (c *users) ListTenants(ctx fiber.Ctx, id int64, filter *dto.SuperUserTenantListFilter) (*requests.Pager, error) {
+	return services.Super.ListUserTenants(ctx, id, filter)
+}
+
 // Update user status
 //
 // @Router /super/v1/users/:id<int>/status [patch]