fix(auth): handle missing workspaceId in auth service (#11173)

Add a check to return undefined if workspaceId is not provided. Prevents
unnecessary execution and potential errors during workspace lookup.

packages/twenty-server/src/engine/core-modules/auth/services/auth.service.ts

@@ -562,12 +562,14 @@ export class AuthService {
       );
     }
 
-    return await this.workspaceRepository.findOne({
+    return params.workspaceId
-      where: {
+      ? await this.workspaceRepository.findOne({
-        id: params.workspaceId,
+          where: {
-      },
+            id: params.workspaceId,
-      relations: ['approvedAccessDomains'],
+          },
-    });
+          relations: ['approvedAccessDomains'],
+        })
+      : undefined;
   }
 
   formatUserDataPayload(