feat(workspace): Add subdomain availability check (#8906)

Implemented a feature to check the availability of subdomains when
updating workspace settings. This includes a new mutation,
`isSubdomainAvailable`, to validate subdomain availability through
GraphQL. The frontend now verifies if a subdomain is available to
prevent duplicates during updates.

---------

Co-authored-by: Weiko <corentin@twenty.com>

packages/twenty-front/src/modules/domain-manager/hooks/useLastAuthenticatedWorkspaceDomain.ts

@@ -10,16 +10,12 @@ export const useLastAuthenticatedWorkspaceDomain = () => {
   const setLastAuthenticateWorkspaceDomainWithCookieAttributes = (
     params: { workspaceId: string; subdomain: string } | null,
   ) => {
-    setLastAuthenticatedWorkspaceDomain(
-      params
-        ? {
-            ...params,
-            cookieAttributes: {
-              domain: `.${domainConfiguration.frontDomain}`,
-            },
-          }
-        : null,
-    );
+    setLastAuthenticatedWorkspaceDomain({
+      ...(params ? params : {}),
+      cookieAttributes: {
+        domain: `.${domainConfiguration.frontDomain}`,
+      },
+    });
   };
 
   return {

packages/twenty-front/src/modules/domain-manager/states/lastAuthenticatedWorkspaceDomainState.ts

@@ -1,11 +1,16 @@
 import { cookieStorageEffect } from '~/utils/recoil-effects';
 import { createState } from 'twenty-ui';
 
-export const lastAuthenticatedWorkspaceDomainState = createState<{
-  subdomain: string;
-  workspaceId: string;
-  cookieAttributes?: Cookies.CookieAttributes;
-} | null>({
+export const lastAuthenticatedWorkspaceDomainState = createState<
+  | {
+      subdomain: string;
+      workspaceId: string;
+      cookieAttributes?: Cookies.CookieAttributes;
+    }
+  | null
+  // this type is necessary to let the deletion of cookie. Without the domain the cookie is not deleted.
+  | { cookieAttributes?: Cookies.CookieAttributes }
+>({
   key: 'lastAuthenticateWorkspaceDomain',
   defaultValue: null,
   effects: [

packages/twenty-front/src/modules/workspace/components/WorkspaceProviderEffect.tsx

@@ -41,8 +41,10 @@ export const WorkspaceProviderEffect = () => {
   useEffect(() => {
     if (
       isMultiWorkspaceEnabled &&
-      isDefined(lastAuthenticatedWorkspaceDomain?.subdomain) &&
-      isDefaultDomain
+      isDefaultDomain &&
+      isDefined(lastAuthenticatedWorkspaceDomain) &&
+      'subdomain' in lastAuthenticatedWorkspaceDomain &&
+      isDefined(lastAuthenticatedWorkspaceDomain?.subdomain)
     ) {
       redirectToWorkspaceDomain(lastAuthenticatedWorkspaceDomain.subdomain);
     }