fix: restore original license header in loader.test.js

Author: anshukaushik4700

js/__tests__/loader.test.js

@@ -1,27 +1,29 @@
-// Copyright (c)  Music Blocks
-//
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the The GNU Affero General Public
-// License as published by the Free Software Foundation; either
-// version 3 of the License, or (at your option) any later version.
-//
-// You should have received a copy of the GNU Affero General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA
-
-// ─── WHY THIS FILE IS STRUCTURED THIS WAY ────────────────────────────────────
-//
-// loader.js is a *script*, not a module: the moment Jest's require() evaluates
-// it, the top-level requirejs([...], callback) fires synchronously.
-// If a real (or uncontrolled) requirejs is on global at that point, it spawns
-// its own describe/test calls mid-test — causing Jest's fatal
-// "Tests cannot be nested" error seen in the previous run.
-//
-// Fix: install ONE Proxy-based stub on global.requirejs BEFORE any describe()
-// block is entered. The proxy delegates to a mutable `_mockImpl` pointer that
-// each test replaces via beforeEach. jest.resetModules() gives every test a
-// fresh loader.js execution while the proxy itself stays stable on global.
-// ─────────────────────────────────────────────────────────────────────────────
+/**
+ * @license
+ * MusicBlocks v3.4.1
+ * Copyright (C) 2026 Ashutosh Kumar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Tests for loader.js module
+ *
+ * The loader.js file is an entry point that uses RequireJS to load the application.
+ * Since it executes immediately upon require and depends on external modules (i18next),
+ * we test its configuration and behavior through mocks.
+ */
 
 let _mockImpl = jest.fn();