Unique field - add unique property creation/deletion on field (#13539)

Done : 
- add isUnique prop availability on gql update/create fieldMetadata
resolvers
- add unique index creation logic at update & creation
- add unique index deletion logic at update
- update unique index if field name updated
- edge cases : can't have default value and unique fields / standard
default value excluded from index (where clause) / can't have composite
unique fields / can't create unique fields on MORPH


closes https://github.com/twentyhq/core-team-issues/issues/1222

packages/twenty-server/src/engine/workspace-manager/workspace-migration-runner/workspace-migration-runner.service.ts

@@ -1,8 +1,13 @@
 import { Injectable, Logger } from '@nestjs/common';
 
+import { t } from '@lingui/core/macro';
 import { isDefined } from 'twenty-shared/utils';
 import { type QueryRunner, Table, type TableColumn } from 'typeorm';
 
+import {
+  IndexMetadataException,
+  IndexMetadataExceptionCode,
+} from 'src/engine/metadata-modules/index-metadata/index-field-metadata.exception';
 import { IndexType } from 'src/engine/metadata-modules/index-metadata/types/indexType.types';
 import {
   type WorkspaceMigrationColumnAction,
@@ -246,6 +251,17 @@ export class WorkspaceMigrationRunnerService {
       if (error.code === '42P07') {
         return;
       }
+
+      if (error.code === '23505') {
+        throw new IndexMetadataException(
+          `Unique index creation failed because of unique constraint violation`,
+          IndexMetadataExceptionCode.INDEX_CREATION_FAILED,
+          {
+            userFriendlyMessage: t`Cannot enable uniqueness due to existing duplicate values. Please review and fix your data first.`,
+          },
+        );
+      }
+
       throw error;
     }
   }