Fix unique index created twice (#7718)

`isUnique` was passed to TypeORM's column creation API resulting in
double index creation because it's already done via the decorator and
then in `WorkspaceMigrationIndexFactory`

It would be interesting to move it at this field level in a later step,
which is why I also fixed `CompositeColumnActionFactory` to pass
isUnique on the correct columns, even though it's being ignored later on

packages/twenty-server/src/engine/metadata-modules/workspace-migration/factories/composite-column-action.factory.ts

@@ -183,7 +183,10 @@ export class CompositeColumnActionFactory extends ColumnActionAbstractFactory<Co
           enum: enumOptions,
           isNullable:
             alteredFieldMetadata.isNullable || !alteredProperty.isRequired,
-          isUnique: alteredFieldMetadata.isUnique ?? false,
+          isUnique:
+            (alteredFieldMetadata.isUnique &&
+              alteredProperty.isIncludedInUniqueConstraint) ??
+            false,
           defaultValue: serializedDefaultValue,
           isArray:
             alteredProperty.type === FieldMetadataType.MULTI_SELECT ||

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

@@ -402,7 +402,10 @@ export class WorkspaceMigrationRunnerService {
         enumName: enumName,
         isArray: migrationColumn.isArray,
         isNullable: migrationColumn.isNullable,
-        isUnique: migrationColumn.isUnique,
+        /* For now unique constraints are created at a higher level
+        as we need to handle soft-delete and a bug on empty strings
+        */
+        // isUnique: migrationColumn.isUnique,
         asExpression: migrationColumn.asExpression,
         generatedType: migrationColumn.generatedType,
       }),

packages/twenty-server/src/modules/person/standard-objects/person.workspace-entity.ts

@@ -22,6 +22,7 @@ import { WorkspaceField } from 'src/engine/twenty-orm/decorators/workspace-field
 import { WorkspaceIsDeprecated } from 'src/engine/twenty-orm/decorators/workspace-is-deprecated.decorator';
 import { WorkspaceIsNullable } from 'src/engine/twenty-orm/decorators/workspace-is-nullable.decorator';
 import { WorkspaceIsSystem } from 'src/engine/twenty-orm/decorators/workspace-is-system.decorator';
+import { WorkspaceIsUnique } from 'src/engine/twenty-orm/decorators/workspace-is-unique.decorator';
 import { WorkspaceJoinColumn } from 'src/engine/twenty-orm/decorators/workspace-join-column.decorator';
 import { WorkspaceRelation } from 'src/engine/twenty-orm/decorators/workspace-relation.decorator';
 import { PERSON_STANDARD_FIELD_IDS } from 'src/engine/workspace-manager/workspace-sync-metadata/constants/standard-field-ids';
@@ -79,10 +80,7 @@ export class PersonWorkspaceEntity extends BaseWorkspaceEntity {
     description: 'Contact’s Emails',
     icon: 'IconMail',
   })
-  /*
-  TODO: add back once we handle TEXT Unique index properly
   @WorkspaceIsUnique()
-  */
   [EMAILS_FIELD_NAME]: EmailsMetadata;
 
   @WorkspaceField({