feat(format): Enhance format module with rollback, diff reporting, and improved parallel execution

ts/mod_format/formatters/npmextra.formatter.ts

@@ -0,0 +1,8 @@
+import { LegacyFormatter } from './legacy.formatter.js';
+import * as formatNpmextra from '../format.npmextra.js';
+
+export class NpmextraFormatter extends LegacyFormatter {
+  constructor(context: any, project: any) {
+    super(context, project, 'npmextra', formatNpmextra);
+  }
+}