fix(notifications): Handle null provider in organization integrations filter (#112368)

Handle null provider in the organization integrations filter on the
notification settings page.

The `/users/me/organization-integrations/` API can return entries with a
null `provider` field. The `ALLOWED_PROVIDERS` filter added in #111745
accesses `orgIntegration.provider.key` without null safety, crashing the
page with `TypeError: Cannot read properties of null (reading
'provider')`.

Adds optional chaining to match the pattern already used for the
identity
provider filter a few lines above.

handles JAVASCRIPT-38j8 & JAVASCRIPT-38N4

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: 2 people

static/app/views/settings/account/notifications/notificationSettingsByType.tsx

@@ -98,12 +98,13 @@ export function NotificationSettingsByType({notificationType}: Props) {
   );
 
   const {data: allOrgIntegrations = [], status: organizationIntegrationStatus} =
-    useApiQuery<OrganizationIntegration[]>(
+    useApiQuery<Array<OrganizationIntegration | null>>(
       [getApiUrl('/users/$userId/organization-integrations/', {path: {userId: 'me'}})],
       {staleTime: 30_000}
     );
-  const organizationIntegrations = allOrgIntegrations.filter(orgIntegration =>
-    ALLOWED_PROVIDERS.has(orgIntegration.provider.key as SupportedProviders)
+  const organizationIntegrations = allOrgIntegrations.filter(
+    (orgIntegration): orgIntegration is OrganizationIntegration =>
+      ALLOWED_PROVIDERS.has(orgIntegration?.provider.key as SupportedProviders)
   );
   const {data: defaultSettings, status: defaultSettingsStatus} =
     useApiQuery<DefaultSettings>([getApiUrl('/notification-defaults/')], {