fix(react): validate role count limit on member invitations

Apply the max-roles-per-request validation to the invitation create
flow, matching the existing member-detail role assignment behavior.
Surface the aborted result so the Invite Member modal stays open when
the limit is exceeded.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: grandmaester

packages/react/src/hooks/my-organization/shared/services/use-member-management-service.ts

@@ -247,6 +247,14 @@ export function useMemberManagementService(
 
   const createInvitationMutation = useMutation({
     mutationFn: async (data: CreateInvitationInput) => {
+      const roleIds = [...new Set(data.invitees.flatMap((i) => i.roles ?? []))];
+      if (roleIds.length > 0) {
+        const validationResult = validateRequestRoleForMember(t, roleIds, [], true);
+        if (validationResult?.aborted) {
+          return validationResult;
+        }
+      }
+
       if (createInvitationAction?.onBefore && !createInvitationAction.onBefore(data)) {
         throw new Error('Create action cancelled by onBefore');
       }
@@ -261,7 +269,8 @@ export function useMemberManagementService(
       return Array.isArray(response) ? response[0] : response;
     },
     onSuccess: (result, data) => {
-      createInvitationAction?.onAfter?.(data, result);
+      if (result && 'aborted' in result) return;
+      createInvitationAction?.onAfter?.(data, result as MemberInvitation | undefined);
       const isBulk = data.invitees.length > 1;
       const message = isBulk
         ? t('invitation.create.success_bulk')

packages/react/src/hooks/my-organization/use-organization-member-management.ts

@@ -153,7 +153,10 @@ export function useOrganizationMemberManagement(
   const handleCreateSubmit = React.useCallback(
     (data: CreateInvitationInput) => {
       createInvitationMutation.mutate(data, {
-        onSuccess: () => closeModal(),
+        onSuccess: (result) => {
+          if (result && 'aborted' in result) return;
+          closeModal();
+        },
       });
     },
     [createInvitationMutation, closeModal],

packages/react/src/types/my-organization/member-management/organization-member-management-types.ts

@@ -91,7 +91,7 @@ export interface MemberManagementServiceResult {
     { userId?: string | null; memberName?: string; organizationName?: string }
   >;
   createInvitationMutation: UseMutationResult<
-    MemberInvitation | undefined,
+    MemberInvitation | { aborted: true } | undefined,
     Error,
     CreateInvitationInput
   >;