Refactor workspace creation (#16689)

# Introduction
Created an env variable to will inject a feature flag during any new
workspace init to be created through v2

packages/twenty-server/src/engine/workspace-manager/workspace-manager.module.ts

@@ -20,6 +20,7 @@ import { WorkspaceDataSourceModule } from 'src/engine/workspace-datasource/works
 import { DevSeederModule } from 'src/engine/workspace-manager/dev-seeder/dev-seeder.module';
 import { WorkspaceMigrationV2Module } from 'src/engine/workspace-manager/workspace-migration-v2/workspace-migration-v2.module';
 import { WorkspaceSyncMetadataModule } from 'src/engine/workspace-manager/workspace-sync-metadata/workspace-sync-metadata.module';
+import { TwentyStandardApplicationModule } from 'src/engine/workspace-manager/twenty-standard-application/twenty-standard-application.module';
 
 import { WorkspaceManagerService } from './workspace-manager.service';
 
@@ -35,6 +36,7 @@ import { WorkspaceManagerService } from './workspace-manager.service';
     FeatureFlagModule,
     PermissionsModule,
     AiAgentModule,
+    TwentyStandardApplicationModule,
     WorkspaceManyOrAllFlatEntityMapsCacheModule,
     TypeOrmModule.forFeature([UserWorkspaceEntity, WorkspaceEntity]),
     RoleModule,