Identify standard objects (#17091)

# Introduction
Followup https://github.com/twentyhq/twenty/pull/16981

1/ Migration, applicationId and universalIdentifier are required on
entity ( save point migration + upgrade command fallback pattern )
2/ Backfill using previous standard ids

packages/twenty-server/src/engine/metadata-modules/flat-object-metadata/__mocks__/get-flat-object-metadata.mock.ts

@@ -34,7 +34,7 @@ export const getFlatObjectMetadataMock = (
     nameSingular: 'defaultflatObjectMetadataNameSingular',
     shortcut: 'shortcut',
     standardId: null,
-    applicationId: null,
+    applicationId: faker.string.uuid(),
     standardOverrides: null,
     targetTableName: '',
     workspaceId: faker.string.uuid(),

packages/twenty-server/src/engine/metadata-modules/flat-object-metadata/utils/from-object-metadata-entity-to-flat-object-metadata.util.ts

@@ -14,6 +14,11 @@ export const fromObjectMetadataEntityToFlatObjectMetadata = (
 
   return {
     ...objectMetadataEntityWithoutRelations,
+    // TODO remove once MakeObjectMetadataUniversalIdentifierAndApplicationIdNotNullableMigrationCommand has been run once
+    universalIdentifier:
+      objectMetadataEntityWithoutRelations.universalIdentifier ??
+      objectMetadataEntityWithoutRelations.standardId ??
+      objectMetadataEntityWithoutRelations.id,
     createdAt: objectMetadataEntity.createdAt.toISOString(),
     updatedAt: objectMetadataEntity.updatedAt.toISOString(),
     viewIds: objectMetadataEntity.views.map((viewEntity) => viewEntity.id),
@@ -23,8 +28,5 @@ export const fromObjectMetadataEntityToFlatObjectMetadata = (
     fieldMetadataIds: objectMetadataEntity.fields.map(
       (fieldEntity) => fieldEntity.id,
     ),
-    universalIdentifier:
-      objectMetadataEntityWithoutRelations.standardId ??
-      objectMetadataEntityWithoutRelations.id,
   };
 };