devops: switch to @tony.ganchev/eslint-plugin-header

Reasons:
- The fork is supported and updated.
- ESLint 9-native with full schema support and needing no hacks.
- Windows support
- Multiple other bugfixes.
- UX improvements - better error messages and more autofix capabilities.
- Extensive documentation.
- Better configuration format (although the old one is still supported).

Author: tonyganchev

eslint.config.mjs

@@ -3,7 +3,7 @@ import { FlatCompat } from '@eslint/eslintrc';
 import js from '@eslint/js';
 import typescriptEslint from '@typescript-eslint/eslint-plugin';
 import tsParser from '@typescript-eslint/parser';
-import pluginHeader from 'eslint-plugin-header';
+import header from '@tony.ganchev/eslint-plugin-header';
 import _import from 'eslint-plugin-import';
 import mocha from 'eslint-plugin-mocha';
 import simpleImportSort from 'eslint-plugin-simple-import-sort';
@@ -12,8 +12,6 @@ import globals from 'globals';
 import path from 'node:path';
 import { fileURLToPath } from 'node:url';
 
-pluginHeader.rules.header.meta.schema = false;
-
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
 const compat = new FlatCompat({
@@ -44,7 +42,7 @@ export default [
 	{
 		plugins: {
 			'@typescript-eslint': typescriptEslint,
-			pluginHeader,
+			header,
 			mocha,
 			tsdoc,
 			'simple-import-sort': simpleImportSort,
@@ -161,8 +159,7 @@ export default [
 			],
 
 			'jsx-quotes': 'error',
-			// TODO https://github.com/Stuk/eslint-plugin-header/issues/57
-			// 'header/header': [2, 'src/header.js'],
+			'header/header': [2, 'src/header.js'],
 			'no-mixed-spaces-and-tabs': 'off',
 			'no-empty': 'off',
 			'@typescript-eslint/no-unsafe-function-type': 'off',

package-lock.json

@@ -53,6 +53,7 @@
 		"@playwright/test": "^1.58.2",
 		"@swc/core": "^1.15.18",
 		"@swc/helpers": "^0.5.19",
+		"@tony.ganchev/eslint-plugin-header": "^3.2.4",
 		"@types/ace": "^0.0.52",
 		"@types/fs-extra": "^11.0.4",
 		"@types/karma": "^6.3.9",
@@ -80,7 +81,6 @@
 		"esbuild": "^0.27.3",
 		"eslint": "^9.39.2",
 		"eslint-config-prettier": "^10.1.8",
-		"eslint-plugin-header": "^3.1.1",
 		"eslint-plugin-import": "^2.32.0",
 		"eslint-plugin-mocha": "^11.2.0",
 		"eslint-plugin-prettier": "^5.5.5",

package.json

@@ -1,3 +1,8 @@
+/*!
+ * Jodit Editor (https://xdsoft.net/jodit/)
+ * Released under MIT see LICENSE.txt in the project root for license information.
+ * Copyright (c) 2013-2026 Valerii Chupurnov. All rights reserved. https://xdsoft.net
+ */
 import 'base/build/esm/plugins/all.js';
 
 import { Jodit } from 'base/build/esm/index.js';

test/tests/acceptance/esm.test.esm.js

@@ -1,4 +1,9 @@
 #!/usr/bin/env node
+/*!
+ * Jodit Editor (https://xdsoft.net/jodit/)
+ * Released under MIT see LICENSE.txt in the project root for license information.
+ * Copyright (c) 2013-2026 Valerii Chupurnov. All rights reserved. https://xdsoft.net
+ */
 /*!
  * Script to add missing translation keys from Russian (ru.js) to other language files
  * Usage: node add-missing-translations.js

tools/add-missing-translations.js

@@ -1,3 +1,8 @@
+/*!
+ * Jodit Editor (https://xdsoft.net/jodit/)
+ * Released under MIT see LICENSE.txt in the project root for license information.
+ * Copyright (c) 2013-2026 Valerii Chupurnov. All rights reserved. https://xdsoft.net
+ */
 /**
  * Check that all plugins are included in the ESM build
  */