fix: guard against invalid date and undefined links field value (#16039)

closes https://github.com/twentyhq/twenty/issues/15854

- Add `isValid()` check in `formatDateISOStringToDateTime` before
calling `formatInTimeZone`
- Add `isDefined()` guard in `getFieldLinkDefinedLinks` (mirrors
`phonesUtils` pattern)

before:


https://github.com/user-attachments/assets/1eb89fa4-70b6-4794-8860-0a42522598b5



https://github.com/user-attachments/assets/781c7d37-c435-4832-98d4-8e6925b51e10



after:


https://github.com/user-attachments/assets/b1c22d25-4e8e-45c3-af98-be1684a5962e



https://github.com/user-attachments/assets/ce084a9d-03b8-4f88-8522-a32cb1b7cf2f

---------

Co-authored-by: Charles Bochet <charles@twenty.com>
Co-authored-by: Lucas Bordeau <bordeau.lucas@gmail.com>

packages/twenty-front/src/modules/object-record/record-field/ui/meta-types/input/utils/__tests__/getFieldLinkDefinedLinks.test.ts

@@ -1,6 +1,23 @@
 import { getFieldLinkDefinedLinks } from '@/object-record/record-field/ui/meta-types/input/utils/getFieldLinkDefinedLinks';
+import { type FieldLinksValue } from '@/object-record/record-field/ui/types/FieldMetadata';
 
 describe('getFieldLinkDefinedLinks', () => {
+  describe('Field value', () => {
+    it('should return an empty array if fieldValue is undefined', () => {
+      const result = getFieldLinkDefinedLinks(
+        undefined as unknown as FieldLinksValue,
+      );
+      expect(result).toEqual([]);
+    });
+
+    it('should return an empty array if fieldValue is null', () => {
+      const result = getFieldLinkDefinedLinks(
+        null as unknown as FieldLinksValue,
+      );
+      expect(result).toEqual([]);
+    });
+  });
+
   describe('Primary link', () => {
     it('should not return primary link when primaryLinkUrl is null', () => {
       expect(

packages/twenty-front/src/modules/object-record/record-field/ui/meta-types/input/utils/getFieldLinkDefinedLinks.ts

@@ -3,6 +3,10 @@ import { isNonEmptyString } from '@sniptt/guards';
 import { isDefined, isValidUrl } from 'twenty-shared/utils';
 
 export const getFieldLinkDefinedLinks = (fieldValue: FieldLinksValue) => {
+  if (!isDefined(fieldValue)) {
+    return [];
+  }
+
   return [
     isNonEmptyString(fieldValue.primaryLinkUrl)
       ? {