Fix: multi-select default values validation (#12271)

https://github.com/user-attachments/assets/3bea63cc-b098-4252-8787-fc6263f01e8d


Closes #12277

---------

Co-authored-by: prastoin <paul@twenty.com>
Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-shared/src/testing/index.ts

@@ -8,3 +8,4 @@
  */
 
 export type { EachTestingContext } from './types/EachTestingContext.type';
+export type { SuccessfulAndFailingTestCases } from './types/SuccessfulAndFailingTestCases';

packages/twenty-shared/src/testing/types/SuccessfulAndFailingTestCases.ts

@@ -0,0 +1,6 @@
+import { EachTestingContext } from '@/testing/types/EachTestingContext.type';
+
+export type SuccessfulAndFailingTestCases<T> = {
+  successful: EachTestingContext<T>[];
+  failing: EachTestingContext<T>[];
+};