Push event for user signup (#5837)

Need to setup Twenty as a CRM for Twenty the Twenty team

packages/twenty-server/src/engine/core-modules/user-workspace/user-workspace.service.ts

@@ -34,6 +34,13 @@ export class UserWorkspaceService extends TypeOrmQueryService<UserWorkspace> {
       workspaceId,
     });
 
+    const payload = new ObjectRecordCreateEvent<UserWorkspace>();
+
+    payload.workspaceId = workspaceId;
+    payload.userId = userId;
+
+    this.eventEmitter.emit('user.signup', payload);
+
     return this.userWorkspaceRepository.save(userWorkspace);
   }