Update unique fields on standard field - include soft deleted records (#14562)

Done : 
- migrate standard unique fields (add : -old)
- deactivate defaultWhereClause
- restore soft deleted if upserted (same for contact creation in mailing
sync)

fixes https://github.com/twentyhq/twenty/issues/14443

---------

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

packages/twenty-server/src/engine/workspace-manager/workspace-migration-builder/factories/utils/__tests__/workspace-migration-index.factory.util.spec.ts

@@ -46,9 +46,7 @@ describe('WorkspaceMigrationIndexFactory', () => {
     expect(firstMigration.indexes[0].columns).toEqual(['simpleField']);
     expect(firstMigration.indexes[0].type).toBe('BTREE');
     expect(firstMigration.indexes[0].isUnique).toBe(true);
-    expect(firstMigration.indexes[0].where).toBe(
-      '"simpleField" != \'\' AND "deletedAt" IS NULL',
-    );
+    expect(firstMigration.indexes[0].where).toBe('"simpleField" != \'\'');
   });
 
   it('should create index migrations for relation fields', async () => {

packages/twenty-server/src/engine/workspace-manager/workspace-migration-builder/factories/utils/workspace-migration-index.factory.utils.ts

@@ -88,7 +88,7 @@ export const createIndexMigration = async (
         .filter(isDefined);
 
       const defaultWhereClause = indexMetadata.isUnique
-        ? `${columns.map((column) => `"${column}"`).join(" != '' AND ")} != '' AND "deletedAt" IS NULL`
+        ? `${columns.map((column) => `"${column}"`).join(" != '' AND ")} != ''`
         : null;
 
       return {