Add extracted source directory and README navigation

extracted-source/node_modules/@azure/msal-node/dist/crypto/HashUtils.mjs

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+/*! @azure/msal-node v3.8.1 2025-10-29 */
+'use strict';
+import { Hash } from '../utils/Constants.mjs';
+import crypto from 'crypto';
+
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+class HashUtils {
+    /**
+     * generate 'SHA256' hash
+     * @param buffer
+     */
+    sha256(buffer) {
+        return crypto.createHash(Hash.SHA256).update(buffer).digest();
+    }
+}
+
+export { HashUtils };
+//# sourceMappingURL=HashUtils.mjs.map